diff --git a/.vs/VSWorkspaceState.json b/.vs/VSWorkspaceState.json index 98d0dc87..6b611411 100644 --- a/.vs/VSWorkspaceState.json +++ b/.vs/VSWorkspaceState.json @@ -2,6 +2,5 @@ "ExpandedNodes": [ "" ], - "SelectedNode": "\\Other Branches", "PreviewInSolutionExplorer": false } \ No newline at end of file diff --git a/Data Path.drawio b/Data Path.drawio new file mode 100644 index 00000000..34204518 --- /dev/null +++ b/Data Path.drawio @@ -0,0 +1,174 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/IT Notes/Architecture/Architecture Diagram.png b/IT Notes/Architecture/Architecture Diagram.png new file mode 100644 index 00000000..138e1ca8 Binary files /dev/null and b/IT Notes/Architecture/Architecture Diagram.png differ diff --git a/IT Notes/Architecture/Architecture.txt b/IT Notes/Architecture/Architecture.txt new file mode 100644 index 00000000..e69de29b diff --git a/IT Notes/Binary Notes.txt b/IT Notes/Binary Notes.txt new file mode 100644 index 00000000..594b9e82 --- /dev/null +++ b/IT Notes/Binary Notes.txt @@ -0,0 +1,13 @@ +2 times itself "x" times + +convert, say +01101110: +stick values in chart, add what + +ascii table + +column 1: 2^x (x=0 -> 7) + +convert: put binary value into second column, add each value together + +ASCII= American Standard of Code Information Interchange \ No newline at end of file diff --git a/IT Notes/Binary to Decimal Examples.txt b/IT Notes/Binary to Decimal Examples.txt new file mode 100644 index 00000000..d568206f --- /dev/null +++ b/IT Notes/Binary to Decimal Examples.txt @@ -0,0 +1,5 @@ +010010 +74 + +10010 +18 \ No newline at end of file diff --git a/IT Notes/Binnary Convert/Binary to Decimal.url b/IT Notes/Binnary Convert/Binary to Decimal.url new file mode 100644 index 00000000..9d38683a --- /dev/null +++ b/IT Notes/Binnary Convert/Binary to Decimal.url @@ -0,0 +1,5 @@ +[{000214A0-0000-0000-C000-000000000046}] +Prop3=19,11 +[InternetShortcut] +IDList= +URL=https://www.desmos.com/calculator/z7k5gospz5 diff --git a/IT Notes/Binnary Convert/Binary to Text.xlsx b/IT Notes/Binnary Convert/Binary to Text.xlsx new file mode 100644 index 00000000..11a9ab70 Binary files /dev/null and b/IT Notes/Binnary Convert/Binary to Text.xlsx differ diff --git a/IT Notes/Binnary Convert/Split Value.xlsx b/IT Notes/Binnary Convert/Split Value.xlsx new file mode 100644 index 00000000..78012705 Binary files /dev/null and b/IT Notes/Binnary Convert/Split Value.xlsx differ diff --git a/IT Notes/Boot manager.txt b/IT Notes/Boot manager.txt new file mode 100644 index 00000000..3bec6acf --- /dev/null +++ b/IT Notes/Boot manager.txt @@ -0,0 +1,18 @@ +Boot manager +used to "boot.ini" (initialization) +uses a special registry now + +both read-only and hidden (means I can see it, but it will warn me) +in root directory of the partition marked "root" + +can disable via "system config", manipulate things like timing, default OS... + +trusted boot takes just the OS + +Secured Boot first checks "digitally signatures" to make sure it's safe. + +4 steps: +1. Pre-Boot: post/ BIOS +2. Windows Boot Manager (bootmgr.exe) +3. Windows OS loader: winload.exe +4. Windows NT OS Kernel: ntoskrnl \ No newline at end of file diff --git a/IT Notes/Computer Disasembly/Disasemble.txt b/IT Notes/Computer Disasembly/Disasemble.txt new file mode 100644 index 00000000..d2feede7 --- /dev/null +++ b/IT Notes/Computer Disasembly/Disasemble.txt @@ -0,0 +1,9 @@ +Removed lid screw +unplug all cables and don't note where they where +take off front and optical disck +unscrew and remove hardrive +extract ram +remove fan +remove other fan +drop screw +remove motherboard diff --git a/IT Notes/Cooling/Possible Issues.txt b/IT Notes/Cooling/Possible Issues.txt new file mode 100644 index 00000000..463cded8 --- /dev/null +++ b/IT Notes/Cooling/Possible Issues.txt @@ -0,0 +1,22 @@ +step 1: check for objects +step 2: tighten screws + +intermittent stopping: +step 1: check connections + +loud: +adjust fans settings in BIOS (f2, for instance) +adjust fans settings elsewhere +buy new fans + + +liquid cooling: + +check pump RPM, check pump physically +if using software, make sure you have it properly plugged into the motherboard + +check for leaks + +estimated lifespan: +all in ones: 4 to 6 years +custom setup: without maintenance, about 3 years. \ No newline at end of file diff --git a/IT Notes/Cooling/Types - Copy.txt b/IT Notes/Cooling/Types - Copy.txt new file mode 100644 index 00000000..a8ec1a8a --- /dev/null +++ b/IT Notes/Cooling/Types - Copy.txt @@ -0,0 +1,22 @@ +Active: uses mechanical means + +2 main ways + air-based, useing fans + liquid based +air-based can be noisy, but won't leak. Liquid cooling uses a liquid (often water). It passes through the components, then goes to a radiator. Much more efficient, quieter, and can reach lower temps (especially if you use a cooler medium, lique LN2, as liquid nitrogen is cold). But if it leaks... + +now, there is a phase change cooling. Can reach sub-ambient tempatures, works via evaporative cooling and condensation. However, it's not as simple + +thermoelectric: uses the peltier effect to create a tempature differential. But, it's not always effective at dissipating heat + +passive cooling: systems that don't require power +heatsinks: devices with a high surface area, and thermal conductivity. Uses convection and such + dependant on airflow, so if enclosed... not very good + +thermal pads and thermal paste: they fill in the small imperfections to allow better heat conduction + +benifits of effective cooling: better performance, longevity + +cable management will help + +in bios, you can adjust speed, adjust curve...ect. \ No newline at end of file diff --git a/IT Notes/Cooling/Types.txt b/IT Notes/Cooling/Types.txt new file mode 100644 index 00000000..a8ec1a8a --- /dev/null +++ b/IT Notes/Cooling/Types.txt @@ -0,0 +1,22 @@ +Active: uses mechanical means + +2 main ways + air-based, useing fans + liquid based +air-based can be noisy, but won't leak. Liquid cooling uses a liquid (often water). It passes through the components, then goes to a radiator. Much more efficient, quieter, and can reach lower temps (especially if you use a cooler medium, lique LN2, as liquid nitrogen is cold). But if it leaks... + +now, there is a phase change cooling. Can reach sub-ambient tempatures, works via evaporative cooling and condensation. However, it's not as simple + +thermoelectric: uses the peltier effect to create a tempature differential. But, it's not always effective at dissipating heat + +passive cooling: systems that don't require power +heatsinks: devices with a high surface area, and thermal conductivity. Uses convection and such + dependant on airflow, so if enclosed... not very good + +thermal pads and thermal paste: they fill in the small imperfections to allow better heat conduction + +benifits of effective cooling: better performance, longevity + +cable management will help + +in bios, you can adjust speed, adjust curve...ect. \ No newline at end of file diff --git a/IT Notes/Corrupd BIOS.txt b/IT Notes/Corrupd BIOS.txt new file mode 100644 index 00000000..e04642ed --- /dev/null +++ b/IT Notes/Corrupd BIOS.txt @@ -0,0 +1,25 @@ +fixing corrupted BIOS is similar to fixing OS, only more dangerous + +most effective is "warranty" + +if you have a gigabyte motherboard, there is a backup BIOS. If the main one is corrupted, you use the backup. If possible, it will use itself as a reference to fix the code. If it doesn't auto-happen, +power-off +press and hold reset button + +third method is to use a paper clip to short pins one and 6 (on the "m-BIOS", or "main Bios") + +next: +remove the discreet Graphics card +if your CPU doesn't have integrated graphics, well... if you remove the discreet card and there is no integrated, well, no graphics! + +Reset the BIOS +remove CMOS, (assuming if you can boot into BIOS), reset the jumper. There may be a "restore factory settings" or "load setup defaults" +can brick stuff, cause issues. BIOS is DANGEROUS + +Use jumper (Old motherboards) + + +Update BIOS + sometimes it will tell you to update + download copy of BIOS into flash drive, follow instructions + ensure steady power, OR ELSE \ No newline at end of file diff --git a/IT Notes/Device Drivers.txt b/IT Notes/Device Drivers.txt new file mode 100644 index 00000000..43d7e0e1 --- /dev/null +++ b/IT Notes/Device Drivers.txt @@ -0,0 +1,13 @@ +Device Drivers: + +They are like an "OS" for the periferials + + +They are a piece of software that tells + +2-types +1. kernal-mode device driver: includes some generic hardware that loads with the OS +2. User-mode: "plug and play", activates "over" the OS, such as detecting and controlling your mouse when you plug it in + +third "one" +3. virtual, manages virtual devices, controlling data flow \ No newline at end of file diff --git a/IT Notes/Device Manager.txt b/IT Notes/Device Manager.txt new file mode 100644 index 00000000..1c2112dd --- /dev/null +++ b/IT Notes/Device Manager.txt @@ -0,0 +1,12 @@ +IF A DEVICE HAS AN ISSUE, THE CATEGORY WHERE THAT DEVICE IS WILL (usually) OPEN EXPANDED + +you can manage things like individual drivers/ devices +the driver that is shown for graphics though is often the windows "basic compatibility driver". Typically installed with windows, and it's so you can, well, see, what you are doing to get the actual driver + +you can get details of it. Can be used to update them, disable devices to test other things +uninstall device, (which delete the drivers and then tells it that it doesn't exist) + +"rollback driver", if something goes wrong, you can use this to roll back to a previous version + +resourses tab, which straight up tells you the resource tab +the events tab show you any error logs diff --git a/IT Notes/File Systems.txt b/IT Notes/File Systems.txt new file mode 100644 index 00000000..41ffd76c --- /dev/null +++ b/IT Notes/File Systems.txt @@ -0,0 +1,25 @@ +FAT 32 is common due to compatibility + +NTFS is "FAT 64" + It's the most recent, modern one +Supports permissions and and encryptions +File size limit of 16 exabytes +Journaling (making periodical updates of files. This system allows it to "restore" to a point. So if an update breaks windows, it can return to a specific point) +windows 3.1 was the first with it (1993), first to require it was windows 8 + +exFat: extended file allocation + closer to being truly FAT-64, as it's based on the same technology, but with minor modifications. Read right on mac OS and other OS. EVEN WINDOWS! It has the benifits of four + +Linux uses "ext, ext2, ext3, ext4" +no native windows or mac support. Has journaling (as of 2001, ext3). As of 2008, ext4 is default. as of 2025, most recent is ext4 +file size of 166 terabites, volume of 1 exabyte... + + +apples: +HSF- hierarchal ("mac OS standard" + +HSF+ (released 1998) (HSF Extended/ Mac OS extended) + +Mac OS 10.4: macOS 10.4 (2010) + +2017, APFS (apple file system) \ No newline at end of file diff --git a/IT Notes/Hardware Fundementals/CPU.txt b/IT Notes/Hardware Fundementals/CPU.txt new file mode 100644 index 00000000..b8c90d5f --- /dev/null +++ b/IT Notes/Hardware Fundementals/CPU.txt @@ -0,0 +1,40 @@ +von neumann architecture + +input +storage/memory +CPU + Register + control unit + Aritmitic Logic Unit + ALU +output + +connected via buses (part of chipset?) + +runs on a cycle (Fetch -> Decode -> Execute) + it fetches the data, decodes the instructures/ info, and then executes it + + +control unit executes machine code (assembly). Syncronyzes everything to the clockspeed + +bus types, circuit on motherboard. connects all components to CPU/ RAM +Adress Bus: transfers memory addresses, operate unidirectionally +data bus: transfer data +combine them, and you have the system bus + +control bus, bi-directional + +EPROM: erasable programable read only memory + + +Von Neumann architecture relies on the stored program concept: +Machine code instructions are fetched and executed serially by a processor that can perform arithmetic +and logic operations. +there are two requirments. First, Two requirements for the stored program concept: +A program must be resident in the memory to be executed, and the instructions must be fetched from the memory one at a time, decoded and +executed by the processor. + +other key features: +the same data bus is used for both instructions and data. It has a bidirectional flow. +a single address bus is used for the unidirectional transmission of address locations from CPU to memory/ IO +same word length is used for all memory, whether it holds data or instructions \ No newline at end of file diff --git a/IT Notes/Hardware Fundementals/HDD.txt b/IT Notes/Hardware Fundementals/HDD.txt new file mode 100644 index 00000000..7ce2b142 --- /dev/null +++ b/IT Notes/Hardware Fundementals/HDD.txt @@ -0,0 +1,6 @@ +hardrives store data in chuncks + +sometimes (read often) data is stored in seemingly unrelated spots. to read faster, defragging +defraging rearranges it so the chunks are more contiguous + +format done via disck manager \ No newline at end of file diff --git a/IT Notes/History of MacOS.txt b/IT Notes/History of MacOS.txt new file mode 100644 index 00000000..13fca1f1 --- /dev/null +++ b/IT Notes/History of MacOS.txt @@ -0,0 +1,63 @@ +history of macOS + +1981- color + +first major: 2001, A.K.A. Cheeta + beta was kodiack +128 MB of RAM and 800 MB of disck space + +10.1.1- Puma, mostly performance +with version 10.2, they ship every update with 10.2 + +Jauguar, adds iChat, universal acces (accessibility), replaces the logo (the "happy mac" to the "new, fruity Icon") + +October 2003: panther, 10.3 +improvments to compat, added expose to improve multiple applications +replaced explorer with safari + +Tiger (205, 10.4) +introdunce widgets, first with intel processors, which where also on the apple TV which was 2 years later (so not surprising) + +Leopard 10.5, longest time between updates (2007, first iPhone +included built in backup system, (time machine), also brought ful 64-bit support +can now use "boot camp" to run other operating systems + +Snow lepard, 10.6 +this one was built mainly on it's predeesor, introduced Mac App Store (inspired by the I-phones store), also removed compat with pre-tiger computers + +Lion (1.7) +First without a DVD or CD download, inspired by IoS +introduces many IoS features like Gestures, Launchpad, window restoring... +iCloud + +Mountain Lion (2012) (it's a canine, so...), primarily bugfix, transfer in Reminders, Notifications, Messages replaces apple chat. before releasing it, promised to release 1 major update a year + +10.9 (and all following ones, so they promised), added maps and ibooks. Broke patten, now california landmarks. This one was Yosemitie +Overhauled UI to match iOS, added handoff to allow moveing things between devices, added in full screen mode, green button + +10.11, El Capitan (main feature of the national park). Added in split views (multiple applications), which windows already had + +Siera, (related to siera nevada) +now just MacOS, remove version added siara and Siri, introduces aple pay and apple whatch + + +High Siera (part of Siera, probally with a higher altitude). Improvments to the files, and HEVC. Changed ui color. 2017, better file system + +Mojave, updates ui. Dynamic desktop (alters based on time), added dark mode improvments to Find and FaceTime, brings over the News Apps, Stocks, Home, and Voice Memos from iOS + +Catalina, 2019 +cleans up iTuns, seperates it into Music, Podcasts and TV + +transfer in the Ipad closer to the Catalyst framework, and the Sidcar allows you to use your iPad as a second display for your Apple Mac + +Big sur (mountain on Catalina?) +Formally moved away from 10. Now it's 11.0, rounded edges, improved messages with groups (for instance "@") + +Montery (2021, height of pandemic). Came out with lots of communication features due to lockdown, added Spacial Audio, allows SharePlay to watch moves and TV with others, portrait mode blurs background, tighter integration, universal control, a single mouse, trackpad, and keyboard between multiple apple devices. + +Ventura update (2022). New multitasking featue (stage manager), grouping apps together. Continuity Camera, allowing iPhone as webcam, spotline has quick look and quick actions, as well as internet compat. schedule mail and such + +Sonoma update, removes "hey siri", now siri. Interactive widgets, moveable. Game porting toolkit (metal), to minimize porting from macOS to others, add website to their dock, notebook supports linked notes and +adds user profiles and groups, icloud keychain now allows you to make groups of passcodes + +2024, Sequoia, added Apple Intelligence, siri better understands mumbles, image playground and genmojies, cross platform passwords, better writing tools, miring to control iPhone from your mac even if phone is locked. \ No newline at end of file diff --git a/IT Notes/Hyperthreading Notes.txt b/IT Notes/Hyperthreading Notes.txt new file mode 100644 index 00000000..e5d89322 --- /dev/null +++ b/IT Notes/Hyperthreading Notes.txt @@ -0,0 +1,2 @@ +if you have six cores, six instruction sets are possible +however, via a program, they can be "divided", allowing less of the CPU to preform multiple calculations, so it could go from 6 cores to 12 "logical" cores, so each half of each core can do different instruction sets. Normally used to run equations in parallel, but could be used to run separate things at the same time, even if unrelated \ No newline at end of file diff --git a/IT Notes/Linux.txt b/IT Notes/Linux.txt new file mode 100644 index 00000000..aec21b42 --- /dev/null +++ b/IT Notes/Linux.txt @@ -0,0 +1,83 @@ +Open source, free to modify + +many OS's utilize the Linux Kernel, which is based on the Unix Kernel + +generally inside it is "package manager" (download), int system (running?) GNU tools, libraries, documentation, ect. +available as source code, binaries, ect. Some might have propiatary code, but... + +some major distributions are Debian, Ubuntu, Fedora, Redhat... + +Made by Linus Torvalds made the Kernal +And, effect "Linux is an interface between hardware and software" + +When Linus was in school, they where useing MINIX. +He kept asking for some improvments (and others), but the developer Andrew Tanuabam. + The idea of asking for improvmovments and feedback was not a new concept. Richard Stalman of MIT had been advocating the idea of useing feedback ("free software", not meaning 0 cost, meaning "open source"). MIT disagreed and he left in 1984, and he made GNU, linus wants to do the same thing with an OS. + + By OS, this means is a kernel. for an itallian restaurant, if you order a pasta dish, the Kernel is the pasta, the most noticible, all-encompassing thing +Linus Torvalds made the kernel, but had no programs. Stalman had programs but no OS. Both where usless on their own... but combined became Linux +Linus said "are you without a nice project and dying to cut your teeth on an OS you can try to modify your needs? this post might just be for you!" + +Those people helped modify it, but it never really became popular besides those "gurus". Linux had no guide, other OS's did. Nover very useful + +However, some people took Linux and designed it to be easier to set up. However, it's still somewhat complex, and many people who describe it haven't used it. +However, price wise, it's second to none! 0$, vs a hundred, or subscriptions... + + + +Nitrux: +pros: very easy, uses "app images", stable +cons: not well documented + + +Ubuntu: very easy setup, Appstore, desktops + +zorin OS: +similar to windows +layout switcher +tailored documntation + +cons: older computers will struggle to run anything but the lite version + +variant of uubuntu +pro-edition that does cost money, exclusive features + +Pop!_OS +good for gameing +hybrid graphics, special nvidia drivers +keyboard navigatation + +Rocky Linux: 10 year support + +Ubuntu Server +benifits of ubunt, but server based + +Kodachi +Best for pricacy, can be used as a daily driver, connects through VPN, ubbuntoo, "panic features" like a nuke passcode to encrypteverything + +Rescatux +custom recap, designed for inexperienced, lots of documentation + +miseeing some normal Linux stuff. + +useful for repairing files + +Parrot OS, good for forensic/ pen testing + +lots of tools, categorized menues, encrypted persistence + +interestingly, designed to also be useful for most users that want a secure and privacy-focused distro + +Open Media Vault is a debian-based that's good to convert old unused computer (or even a rasbary pi) into NAS + +Porteus: +fast bootup, multiple desktops, persistant sessions. runs fully off of thumdrive +unninutitive + +manjaro +based on linux-arch +attempts to take it's negatives by: +customized installer, ready to use, several edditions + +puppy Linux +designed for older hardware, multiple versions, lots of apps, good to ressurct and re-use ancient computers \ No newline at end of file diff --git a/IT Notes/Memory/3D xpoint technology memory.url b/IT Notes/Memory/3D xpoint technology memory.url new file mode 100644 index 00000000..68e6ee26 --- /dev/null +++ b/IT Notes/Memory/3D xpoint technology memory.url @@ -0,0 +1,5 @@ +[{000214A0-0000-0000-C000-000000000046}] +Prop3=19,11 +[InternetShortcut] +IDList= +URL=https://www.bing.com/search?q=3d+xpoint+technology&qs=n&form=QBRE&sp=-1&lq=0&pq=3d+xpoint+technology&sc=4-20&sk=&cvid=71E047182C724444A808D0B93459B454 diff --git a/IT Notes/Memory/Memory Notes.txt b/IT Notes/Memory/Memory Notes.txt new file mode 100644 index 00000000..e1a119e4 --- /dev/null +++ b/IT Notes/Memory/Memory Notes.txt @@ -0,0 +1,67 @@ +Ram like capaciter + +data charges capaciter +as time goes by batteries loose charge, or, in this case, data +while on, send constant stream of power, without that, data degrades rapidly + +ROM +read only +"permanent" +like battery, needs some power to retain information, but only to re-charge the passive discharge, so it uses less power. + +Only + +CMOS battery + +S-Ram +D-Ram + +static ram +dynamic ram + +s-ram is for cacheing, which is able to be stored longer durations +d-ram is "slower", used for most data + +PROM- programable read-only memory. Can write (to install a bios). Can read it, but once there it can't go + CD Rom. Data is physically embedded (literally burned in) +EPROM- Erasable Programable Read-Only Memory. Can be erased using UV, then written to again + Boot Drive, parts of BIOS, magnetic tapes +EEPROM- can be erased electronically, not just UV. + USB's + +DIMM + Dual Inline Memory Modual- 64 bit bandwith, with 168, 184, 240, 288 + typically increased with version DIMM 1 had 168, DIMM 2 had 184 + +SIMM- Single Inline Memory Module + Older technology + +RIMM + rambus inline memory module + +DRAM- Dynamic RAM + Operates asyncronusly with the system clock, making it slower. Coud be 30 seconds vs. 60 seconds. It would have to wait until CPU is ready. It might also be offset, so RAM starts, then CPU, and it has to paus + +SDRAM- + operates synchronously with system clock, making it not have to pause, and thus faster + +DDR- different versions of DIMM + Each DDR doubled about it could be fetched + +SIMM- + 1 bit (kinda DDR0) +DDR1- 2 bits +DDR2- 4 bits + +clock speed second- Mhz = 1 million instructions per second +Ghz= 1B instructions per second + +multitasking as we think of it isn't possible (for humans nor computers) +Path width- how much data can be transferred in a clock cycle + +Number of cores is like refresh rate vs. resoloution +with screens, refresh rate is best (you don't notice the difference between resoloutions after a certain point, but refresh rate is still noticeable) + +with cores, higher clock speeds makes it process faster, number of cores allows more processing. More cores allows more intensive stuff (so for something like video editing, the calculations are harder, and more cores is nice), but clock speed makes more clock speed allows "resoloution" + +ultimately, cores will typically have a bigger influence. \ No newline at end of file diff --git a/IT Notes/Memory/Mems.txt b/IT Notes/Memory/Mems.txt new file mode 100644 index 00000000..1665518e --- /dev/null +++ b/IT Notes/Memory/Mems.txt @@ -0,0 +1,6 @@ +https://www.bing.com/search?qs=LS&pq=optane&sk=CSYN1&sc=16-6&pglt=41&q=optane+memory&cvid=e7b58c791d05495c916b932556b661cd&gs_lcrp=EgRlZGdlKgcIABAAGPkHMgcIABAAGPkHMgYIARBFGDkyBggCEAAYQDIGCAMQABhAMgYIBBAAGEAyBggFEAAYQDIGCAYQABhAMgYIBxAAGEAyBggIEAAYQDIICAkQ6QcY_FXSAQkxNzE3NWowajGoAgCwAgA&FORM=ANNAB1&PC=U531 + +https://www.bing.com/search?q=3d+xpoint+technology&qs=n&form=QBRE&sp=-1&lq=0&pq=3d+xpoint+technology&sc=4-20&sk=&cvid=71E047182C724444A808D0B93459B454 + + +https://www.bing.com/search?pglt=41&q=phase+change+memory&cvid=d497e09df2804e90a7eb0c64fb2ddd9e&gs_lcrp=EgRlZGdlKgYIABBFGDkyBggAEEUYOTIGCAEQABhAMgYIAhAAGEAyBggDEAAYQDIGCAQQABhAMgYIBRAAGEAyBggGEAAYQDIGCAcQABhAMgYICBAAGEAyCAgJEOkHGPxV0gEINjUxN2owajGoAgCwAgA&FORM=ANSAB1&PC=U531 \ No newline at end of file diff --git a/IT Notes/Memory/Optane Memory.url b/IT Notes/Memory/Optane Memory.url new file mode 100644 index 00000000..03daeb80 --- /dev/null +++ b/IT Notes/Memory/Optane Memory.url @@ -0,0 +1,5 @@ +[{000214A0-0000-0000-C000-000000000046}] +Prop3=19,11 +[InternetShortcut] +IDList= +URL=https://www.bing.com/search?qs=LS&pq=optane&sk=CSYN1&sc=16-6&pglt=41&q=optane+memory&cvid=e7b58c791d05495c916b932556b661cd&gs_lcrp=EgRlZGdlKgcIABAAGPkHMgcIABAAGPkHMgYIARBFGDkyBggCEAAYQDIGCAMQABhAMgYIBBAAGEAyBggFEAAYQDIGCAYQABhAMgYIBxAAGEAyBggIEAAYQDIICAkQ6QcY diff --git a/IT Notes/Memory/Phase Change Memory.url b/IT Notes/Memory/Phase Change Memory.url new file mode 100644 index 00000000..2732c3d9 --- /dev/null +++ b/IT Notes/Memory/Phase Change Memory.url @@ -0,0 +1,5 @@ +[{000214A0-0000-0000-C000-000000000046}] +Prop3=19,11 +[InternetShortcut] +IDList= +URL=https://www.bing.com/search?pglt=41&q=phase+change+memory&cvid=d497e09df2804e90a7eb0c64fb2ddd9e&gs_lcrp=EgRlZGdlKgYIABBFGDkyBggAEEUYOTIGCAEQABhAMgYIAhAAGEAyBggDEAAYQDIGCAQQABhAMgYIBRAAGEAyBggGEAAYQDIGCAcQABhAMgYICBAAGEAyCAgJEOkHGPxV0gEINjUxN2owajGoAgCwAgA&FOR diff --git a/IT Notes/Missign/Missign Notes.txt b/IT Notes/Missign/Missign Notes.txt new file mode 100644 index 00000000..6415f57f --- /dev/null +++ b/IT Notes/Missign/Missign Notes.txt @@ -0,0 +1 @@ +Missign components of the notes \ No newline at end of file diff --git a/IT Notes/Monitor/Monitors.txt b/IT Notes/Monitor/Monitors.txt new file mode 100644 index 00000000..bf6567d8 --- /dev/null +++ b/IT Notes/Monitor/Monitors.txt @@ -0,0 +1,56 @@ +CRT: cathode ray tube, + 640x480 + 800x600 + 1024x768 +got to +used "VGA" cables for standard def + +CRT's don't have a "fixed native resoloution" +had a higher refresh rate of 75+ hertz, "flicker free" + +16:9 is normal aspect ratio, good for "cinematic and immersive" +2010's 4K, ~8 million pixels + +in the "todays", OLED (organic LED), very good contrast, ability to do "perfect" black by turning off the pixel +_________________________________________________________________________ +lots of pages, graphic designs, ect. Higher resoloution is better. + +For 4K videos, more resoloution = better, 4K optimal. But more graphics power + +many monitors use >60 hertz refresh, gameing monitors often go up to 200+ + +Response time is how long it takes for the pixels to change color, smaller=better + +screen (the plastic between you and the lights) +IPS- known for excellent color reproduction, and wide view angle. Good for graphic design, photo editing, other color sensitive work +VA- high contrast ratio, good view angle +TN: fast response times, worse viewing angle, worse color + +_______________________________ +LCD: like a filter. There is a light source, and a "LCD" filter that alters the orientation of the Liquid Crystal + okay energy efficiency +LED: uses LED (Light emmiting diode), distributed along the edges, or fully along the back (fully backlit), allowing altering + okay energy +OLED: each pixel is it's own organic light source. So each pixel can be different, and it can be "true black", as you can have it off. + most efficient +__________________________________________ +specific technology: + +HDR:High Dynamic Range + improve the quality and contrast of older formats. Dynamic range describes the range, HDR makes the contrast +wether it can reach 200 knits, or 2000 knits (very dark, blinding), still limited by signal. It scales ranges so old formats which don't have the range. HDR just has steps to edit it, to scale the light + Ultra-HD Blueray can store HDR, and/ or 4K. But, you need a player compatible + +G-Sync/ Free-Sync +Only difference is: +G-Sync= NVIDIA +Free-Sync = AMD + it is to attempt to prevent screen tearing, which happen when the monitor's refresh rate exceeds the GPU, basically the GPU sends a partial frame to keep up, leading to overlaps. + It causes the monitor to delay dynamically, adjusting it's refresh rate to match + +More advanced version factors in 120 hz, and works factoring in framedrops +last has HDR stuff + +NVIDIA says that free-sync will work up to under 30 hertz, seems to work up to around 48 hertz + +G-sync uses a special chip in the monitor, but this allows things like frame-doubling, and also it helps remove motion blur \ No newline at end of file diff --git a/IT Notes/Monitor/Possible Errors and fixes.txt b/IT Notes/Monitor/Possible Errors and fixes.txt new file mode 100644 index 00000000..f372b3c1 --- /dev/null +++ b/IT Notes/Monitor/Possible Errors and fixes.txt @@ -0,0 +1,50 @@ +wrong refresh rate, can cause "no signal", as it has no valid input + +if using tv, might need to use "overscan" or "underscan", + +aspect ratio can be messed up using portrait mode + +in game settings can fix using the wrong monitor, if not + +win + i + opens settings + +when it defaults to duplicate, change it ( win + p, or settings) + win + p + loads project menue + +monitor(s) constantly flickering + check cables + +wone monitor off, check cables, settings, ect. + +mismatched colors: + get same monitor + color profile might allow enough adjustments to fix it + or display calabriation + +if doing 3 monitors: + basically the same +can only duplicate 2 (it will extend to 1, then duplicate one of those 2 monitors to the other) + +check drivers and such + +(back to "multi-monitor"): +games keep minimizing + could be you clicking another monitor + +apps and tabs kepp getting shuffled + it's a display setting + +visual distortions or artifacting: same as normal artifacting/ distortin, but perhaps shortening cable + +display hub/ docking station: there might be some limitations to the signals and such. + some cap refresh rates for 8K or 4K with more than 2 screens + +monitor suddenly malfunctions: + updates, drivers, cables... +win + ctrl + shift + b + reset graphics driver + +images don't align: + misaligned monitor size or resolution \ No newline at end of file diff --git a/IT Notes/Monitor/Trobleshooting.txt b/IT Notes/Monitor/Trobleshooting.txt new file mode 100644 index 00000000..d31f7980 --- /dev/null +++ b/IT Notes/Monitor/Trobleshooting.txt @@ -0,0 +1,36 @@ +no drivers, built in settings, ect. +typically it will display a box if it works. + +IPS glow: mostly just minimization, distance, bright light, ect. Losening the screen might help + more a material constrait + +backlight bleed is when the light "bleeds" around the edges + more a design flaw than anything. Soloution? don't cheap out + light obstructing tabe can help + +Blurry Display: it started with the CRT's, and it's not going anywhere + try looking into software, check drivers. Afterwards, check if plugging in a working one fixes it. + alternate ports + check cables + graphics card + + windows key + shift + b + to restart graphics drivers + + +bad pixels: a dead pixel, if a few, it's just annoying. If enough though... + some programs claim to be able to fix it, they work via something cauld "box flashing" + if caused by the liquid(crystal), try gently pushing, that can redistribute the liquid + +clouding: if you mishandle it, the LCD panels can get + +burn in: primarily an issue with CRT's, but still an issue. If the damage is minor, then it's just the image lingering short term, but if kept too long, it will be permanent. + if you have ghosting, turn off the monitor short term +once it's become more major, you can try flashing through every color in the spectrum, or pure white. That can mitigate it + +Buzzing/ Flickering: primarily CRT's, in those cases hitting it could help. But, now, it's software, so you are just damaging the monitor. Elsewishe it's either software, or get new monitor + +distorted display. You can try reinstalling the drivers. If it doesn't work, it's hardware + +dual monitor +________________ \ No newline at end of file diff --git a/IT Notes/Networks/Models.txt b/IT Notes/Networks/Models.txt new file mode 100644 index 00000000..4f815ff6 --- /dev/null +++ b/IT Notes/Networks/Models.txt @@ -0,0 +1,65 @@ +OSI + open systems interconnection + +TCP/ IP + Transmission Control Protocol / Internet Protocol + +Five-Layer Model + + +7 layers of OSI += Upper Layer: deal with application issues and implemented in software +- lower layers:hardware + +transport ("heart" of it) + +Layers are: + +Upper: + Application + the interface (web browser) + Presentation + How it's being presented (displayed on screen) + Session + Establishing, Maintaining, and forming the connection +middle: + Transport + how it travels (protocols) + TCP + Transmission Control Protocol + Guranteed + UDP + User Datagram Protocol + Gets There + Ip adresses +lower + Network + IP addresses + packets (creating and routing) + Data Link + organizing bits of data into "frames", which helps to form the packets + the mac address + Physical + all the physical components (routers, switches, cables, antennas, repeater, modem) + + + + +TCP/IP + 4 layers + + Application + The program + Transport + Make sure data is sent via TCP/UDP + Network/ Internet + networking layer + Network Access + Physical Connections + +5-layer + Application + Transport + Network + Data Link + Physical \ No newline at end of file diff --git a/IT Notes/Operating Systems/Windows.txt b/IT Notes/Operating Systems/Windows.txt new file mode 100644 index 00000000..790719c7 --- /dev/null +++ b/IT Notes/Operating Systems/Windows.txt @@ -0,0 +1,11 @@ +1.0: 1985, interface manager. Oddly, it's not supported... + +Windows 2000: introduced NTFS 3.0, encrypting file system, basic and dynamic disc storage + +Windows XP: one of the classic older ones, it was primarily just improved UI and extra hardware support, plus more multimedia stuff. Not sure what makes it well known... + +Windows VISTA: released in 2007, basicly a redesing of must subsytems and updated GUI + + Windows 8: Optimizeing for touch and such + +Windows 8.1: released in 2013, ability to snap up to 4 apps, and, interestingly, bing-based unified search system was added, so, it's younger than I thought... (granted, not all 8.1 versions had it) \ No newline at end of file diff --git a/IT Notes/Operating Systems/WindowsVersionComparison(2).xlsx b/IT Notes/Operating Systems/WindowsVersionComparison(2).xlsx new file mode 100644 index 00000000..ce670808 Binary files /dev/null and b/IT Notes/Operating Systems/WindowsVersionComparison(2).xlsx differ diff --git a/IT Notes/Operating Systems/WindowsVersionComparison.xlsx b/IT Notes/Operating Systems/WindowsVersionComparison.xlsx new file mode 100644 index 00000000..ce670808 Binary files /dev/null and b/IT Notes/Operating Systems/WindowsVersionComparison.xlsx differ diff --git a/IT Notes/Peripherial Devices/Connections.txt b/IT Notes/Peripherial Devices/Connections.txt new file mode 100644 index 00000000..d156f39a --- /dev/null +++ b/IT Notes/Peripherial Devices/Connections.txt @@ -0,0 +1,15 @@ +VGA: older video connection +HDMI: carries audio and visual (It's a hybrid of Display Port and Aux-Cord) +Display Port: carries visual +Aux-Cord: carries sound + 3 1/2 millimeter jack +Blu-tooth: a type of wireless protocol +wi-fi: a wireless protocol +thunderbolt: small devices + loved by apple, especially with Lightning cable +USB- connecting many things + types: + A- rectangule + B- it's a square + C- unidirectional, thin rectangle +ethernet- wired networking \ No newline at end of file diff --git a/IT Notes/Peripherial Devices/Peripherials.txt b/IT Notes/Peripherial Devices/Peripherials.txt new file mode 100644 index 00000000..b0436660 --- /dev/null +++ b/IT Notes/Peripherial Devices/Peripherials.txt @@ -0,0 +1,27 @@ +peripherial devices add functionality that is not inherent to the computer (it will function with or without) +you don't need, say, a keyboard to run it + +inputs: +microphones +keyboard +mouse +scanner +they take non-digital things, like sound, into binary + +outputs: +speakers +screens +printer +headphone +they take the digital signal from an input, and convert it into, say, vibrations + + +storage devices +used to store stuff, practically necessary + + +communication +modem: allows connecting to the internet +network card: necessary to connect the internet to the computer +router: route multiple computers together +used to communicate between computers \ No newline at end of file diff --git a/IT Notes/Peripherial Devices/Troubleshooting Peripherials.txt b/IT Notes/Peripherial Devices/Troubleshooting Peripherials.txt new file mode 100644 index 00000000..344c7637 --- /dev/null +++ b/IT Notes/Peripherial Devices/Troubleshooting Peripherials.txt @@ -0,0 +1,11 @@ +wireless often use IR or radio, often a "USB dongle" +sometimes blutooth + +most have a max range, and stuff might not block it, but stuff will interfere and weaken it +wirless is, generally longer range + +try "resseting", try rechargeing/ replaceing batteries + +the wireless adaptor might have an issue, or the port might have an issue + +for wired connections, try changeing ports, and seeing if it "magicly fixes itself" \ No newline at end of file diff --git a/IT Notes/Personal IT Notes/Acronym/Tech Support Acronym.txt b/IT Notes/Personal IT Notes/Acronym/Tech Support Acronym.txt new file mode 100644 index 00000000..fedfeb3d --- /dev/null +++ b/IT Notes/Personal IT Notes/Acronym/Tech Support Acronym.txt @@ -0,0 +1,20 @@ +LEaaRDRV +imnpeiee +spdoaasr +ta ltgoi +et + + + +L E a a R D R V +i m n p e i e e +s p d a p a s r +t a l e g o i +e t o a n l f +n h g t o v y +i i i s e +n z z e +g e e + i + n + g \ No newline at end of file diff --git a/IT Notes/Personal IT Notes/Acronym/Tech Support- Eldritch.txt b/IT Notes/Personal IT Notes/Acronym/Tech Support- Eldritch.txt new file mode 100644 index 00000000..be1f2e85 --- /dev/null +++ b/IT Notes/Personal IT Notes/Acronym/Tech Support- Eldritch.txt @@ -0,0 +1,25 @@ +LEaaRDRV +imnpeiee +spdoaasr +ta ltgoi +et + + + +L E a a R D R V +i m n p e i e e +s p d a p a s r +t a l e g o i +e t o a n l f +n h g t o v y +i i i s e +n z z e +g e e + i + n + g + +was mentioned this looked like an eldritch incatation, got on concept of cuthulu. Look into: + +cuthulu: +old man johnson diff --git a/IT Notes/Personal IT Notes/Windows Notes.txt b/IT Notes/Personal IT Notes/Windows Notes.txt new file mode 100644 index 00000000..c45d53be --- /dev/null +++ b/IT Notes/Personal IT Notes/Windows Notes.txt @@ -0,0 +1,3 @@ +n/a +deal with latter +maybe diff --git a/IT Notes/Printer/Common Issues&Fixes- Article 1.txt b/IT Notes/Printer/Common Issues&Fixes- Article 1.txt new file mode 100644 index 00000000..eb978756 --- /dev/null +++ b/IT Notes/Printer/Common Issues&Fixes- Article 1.txt @@ -0,0 +1,60 @@ +Printer not working +with some printers, especially HP, you may need to re-install the driver +check if on the same wi-fi + + + +printer says it has no ink, but it prints; +you might be getting a warning before it's out. You can just keep printing +some test prints have bar graphs of the amount. + + + +I can't print from my mobile device + most new wi-fi printers to have "air-print", so iPhones/ apple OS can print if on the same network. +Also many manufactures have apps that also offer more features, as well as third party ones. Some can even trigger scanners. + +Some printers can have an e-mail address, and you can e-mail stuff to it to print. So long as both you and it are connected to the internet, it can print + + + +printer is slow + if over wi-fi, will often be slower. Being closer to the printer will help due to distance. But, come on, use the ethernet! + +some things to do are avoid duplexing, lower quality via draft mode. You can (if applicable) change from useing Host based (or PCL), vs. post script, which are often higher quality, but can be slower + + + +cost per ink/ cost + print drafts in Black and White. + duplex can half the amount of paper + you can use "larger ink", which will cost more, but you buy ink less often. Much less often. + You can use third party ink, and it will often work. Some printers will use software to force you to use theirs + + + +Quality: + ink jets are good for consumer. Laser will have higher quality for crisp text. + +If quality is degrading, could be settings (things like draft mode), make sure paper type is correct. +If toner, try shacking it. For inkjets, nozzle cleaning, ect. Also, ink and toner can go bad... + +If useing an inkjet to print photos, the right paper is important. + + + +Paperjams: + there can be up to 7 locations. So, it can: + be in the back + the tray + the feed + the toner area + + more +getting to them can be anywhere from easy to practicly disassemble printer + + + +scanner stops working on multifunction printer: + it may have failed + check for software \ No newline at end of file diff --git a/IT Notes/Printer/Idendifying issues.txt b/IT Notes/Printer/Idendifying issues.txt new file mode 100644 index 00000000..a11fe937 --- /dev/null +++ b/IT Notes/Printer/Idendifying issues.txt @@ -0,0 +1,78 @@ +identifying printer issues: + +easiest way to determine it is if you know the symptoms, as then you can narrow it down. + Sometimes an error message will be provided, sometimes it will even be useful + +a common symptom is "weird noise" + clicking, grinding, whirring; often mechanical things + +Pages not fully completly, probally low ink +if quality keeps randomly changeing, probally a driver or such + +if you know what your looking at, even if you don't fully understand how to fix it, if you know more, it will help others troubleshoot... + +___ + +connectivity issues; +more prevelant, difficulties with wi-fi, usb, ethernet, being on... +weak signals hinder connectivity +physical obstructions can case issues +also needs to be on the right wi-fi. If disconnected, re-type it +if blutooth, make sure it's paired. +try disconnecting and re-connecting. Or, just cycle it + +if local, check cable, check it's plugged in, check other ports, clean plugs... + +you can try windows troubleshooter, but it's kinda not useful... + +check that it's detected as a printer... is it is, you can try forgetting and re-connecting. + +___ + +Paper jams; the soloution is simple, unjam it. +The execution, not so much. It can be in the; +Input Tray +Output Tray +and between 0 to 5 internal locations + and they vary from "move one thing" to "basically disassemble it" +also check for compatibility of the paper, both material (cardstock? photo paper? wrong size?), and other stuff. + +Don't yank the paper out, can cause damage. Pull it gently, and some printers have a mechanisim to manually move it. +cleaning it also helps. + +___ + +ink +for ink, you can check it, use compatible cartridges. Replacing cartriges is simple + sometimes this won't auto-update ink levels +printing with low ink can cause, well, issues... + +___ + +print quality: +random lines for no apparent reason, faded, blurry, ect. +check ink, checking paper, check quality, make sure settings are good. +clogged print head, so you might need to align and clean. Often done through the printer itself + +___ + +an error is the ultimate (and rarest) help + for instance "paper jam", means, well, paper jam. +Out of ink? well... duh + +on some printers they even give on screen instructions! + +___ + +compatability: the bane of every software developers existance. +in-compatible printers will, well... have fun + +sometimes you may need a software. Not driver, software + +___ + +maintnence +run alignments and cleaning +use microfiber on scanner +run updadates +dust \ No newline at end of file diff --git a/IT Notes/Printer/Printers.txt b/IT Notes/Printer/Printers.txt new file mode 100644 index 00000000..b74fc307 --- /dev/null +++ b/IT Notes/Printer/Printers.txt @@ -0,0 +1,15 @@ +Inkjet: sprays dots of ink onto the paper. + Can do color, black and white, ect. It's just ink. +Laser: use a laser to make an electric picture on a heat. They are fast and produce crisp text. They are cheaper overtime, but they are more expensive upfront. They are all larger, but the color ones are even larger and more expensive +Dot Matrix: they had a bunch pins that hit a ribbon, and that transferred the ink. But they are loud and low-quality, however they can make more than one at once (especially with carbon paper). They are nowadays mostly just for carbon copies and receipts +Thermal Transfer Printers: they just burn it in, the quality may fade (literally fade over time), and requires a special paper. Fast and quiet. +Dye-Sublimation Printers: use heat to transfer dye onto special papper or other materials like fabric or plastic. They are often used for shirts. Expensive ink and spacer, long last +3D printing: uses a filament to build stuff. Can be slow, some filiments are expensive, sometimes multiple filiments +All in one printers: they combine multiple functions, including printing, copying, scanning, and faxing. They provide conviencence, but are sometimes "jack of all trades, master of none" +Large Format Printers: for larger pieces of paper, they have high detail, oversized, are large +Mobile Printers: compact, lightweight, they can print directly from phones/ tablets. However, slower +Plotters: high-quality, large scale. They handle larger paper sized, for precision and accuracy. Struggle with text +UV Printers: rely on ultiviolot light to cure the ink onto objects, good for glass, magnets, ect. Even metal. +Digital Presses: fast, consistent high quality printing, however expensive and often requires special training +____________ +Toner: uses a powder, then heats it, baking it in \ No newline at end of file diff --git a/IT Notes/Printer/Troubleshooting Printers.txt b/IT Notes/Printer/Troubleshooting Printers.txt new file mode 100644 index 00000000..49c766cb --- /dev/null +++ b/IT Notes/Printer/Troubleshooting Printers.txt @@ -0,0 +1,8 @@ +test print, check if on +stuff hang in quue +can have wrong order, defaulting to, say, PDF + can try clearing it, or refreshing it if hung up + +test print could also inform you of ink (and, depending on brand, might actually display it on the page) +if done from your computer, that confirms it can be contacted over the network +services: shows everything running \ No newline at end of file diff --git a/IT Notes/RAID/Circumstances for RAIDs.txt b/IT Notes/RAID/Circumstances for RAIDs.txt new file mode 100644 index 00000000..c7961588 --- /dev/null +++ b/IT Notes/RAID/Circumstances for RAIDs.txt @@ -0,0 +1,9 @@ +1. Home Media Server: +-RAID 5 +-1 disck tollerance, faster read speed +2. Banking +- RAID 6 +- Redundant, efficient +3. Megacorp +-RAID 60 +-two disk tolerance per mirror. \ No newline at end of file diff --git a/IT Notes/RAID/Raid.txt b/IT Notes/RAID/Raid.txt new file mode 100644 index 00000000..49d300ce --- /dev/null +++ b/IT Notes/RAID/Raid.txt @@ -0,0 +1,54 @@ +RAID + +Redundant Array; Independant Disck +it uses multiple discks as one disck, to allow the storing of data redundantly + +it is used to make data more redundant + +unlike JBOD (Just a bunch of discks). Acording to the computer, a RAID will look like one hardrive, whereas JBODS are multiple hardrives, and seen that way by the computer. + +Unlike JBOD, RAID makes data more redundant + +Parts: +The controller, which is what makes the computer see it as 1 volume, and manages the backup + +2 main types; Hardware, and Software. Hardware ones are more reliable +an example is a "PERC" card +Software ones are based on programs, meaning no hardware. It's more configurable and easy to use. But it relies on the CPU/ RAM +Firmware based RAID is built into most BIOS/ UEFI systems, operating on vender-level scale. You may need specific drivers, but + +There are many types and features + +some terms: + +Data Striping: +can read in parallel, stores every other piece of information, no fault tolerance + +Mirrioring: stores a copy of all information on 2 drives, this means no extra space, but perfect copy + +Parity: you loose more like 1/3 of all the capacity. Instead of duplicating data, it uses a "parity block" to allow recreation of lost data + +3 Main categories: + +Standard- +- Raid 0: uses Striping to just split the data +1-(1-AFR_singleDisck)^numberOfDiscks + 1 disk failure will loose all data, and as more disks are more fault points, the equation above shows how more drives is a higher average failure rate +- Raid 1: direct mirroring. That means it's as if you have half the capacity. Reading is faster as you have 2 cpies to read in parallel. Write speed is identical + +- Dead Standard:(outdated) + Raid 2: bit-level striping with ... + Raid 3: used byte levek striping and parity + Raid 4: used block level striping with dedicated parity +Raid 5: uses block-level striping with distributed parity blocks, meaning it doesn't need a hardrive dedicated to parity. It has better performance, if you loose 1 hard rive, the data is retrievable but performance suffers. Loose 2 hard rives, and, well, data's gone. Minimum of 3 discks, maximum of 16 + +Raid 6: same, but 2 parity blocks, so can withstand 2 failed drives. Requires 4 drives, more efficient with more. more reliable. Long rebuild times + +Non-Standard- +Raid DP- an extension of Raid 6, supposed to be faster +Linux AD is a modified version of Raid 10 that +Raid Z, variation that uses the ZFS system, z1 through z3, meaning how many discks it can handle. Self healing from corruption +Declustered RAID. Data and Parity is split across all discks +Hybrid- +Raid 10: stripe contents, mirror said stripes. Offers same read-write of Raid 0, but same redundancy of raid one. But, needs 2 per section +Raid 50: similar, but utilizing raid 5 on the striped info \ No newline at end of file diff --git a/IT Notes/Safe Mode.txt b/IT Notes/Safe Mode.txt new file mode 100644 index 00000000..d4ff6034 --- /dev/null +++ b/IT Notes/Safe Mode.txt @@ -0,0 +1,8 @@ +Safe mode disables every third party software, leaveing just the base windows drivers +very good to determine if the issue is windows-based, or third party software based. Or hardware. + +you can tell you are in safe mode if there is no background, it says safemode in the corners, the very top has the windows build version + +there are many ways to do it: + one of the simplest ways is to use "ms config", also known as System Configuration + look at the OS (this is also how you can change default OS's. Hit the check box labled "safe mode") \ No newline at end of file diff --git a/IT Notes/To check system.txt b/IT Notes/To check system.txt new file mode 100644 index 00000000..3bcd4b09 --- /dev/null +++ b/IT Notes/To check system.txt @@ -0,0 +1,2 @@ +chkdsk "x:" +sfc scannow \ No newline at end of file diff --git a/IT Notes/Tools/Event Viewer.txt b/IT Notes/Tools/Event Viewer.txt new file mode 100644 index 00000000..5bb613ff --- /dev/null +++ b/IT Notes/Tools/Event Viewer.txt @@ -0,0 +1,4 @@ +win+x, event viewer +view logs and such such + +startup apps, show BIOS thing \ No newline at end of file diff --git a/IT Notes/Tools/power user.txt b/IT Notes/Tools/power user.txt new file mode 100644 index 00000000..9a8507dd --- /dev/null +++ b/IT Notes/Tools/power user.txt @@ -0,0 +1,2 @@ +power user +admin tools \ No newline at end of file diff --git a/Windows Notes.txt b/Windows Notes.txt new file mode 100644 index 00000000..e69de29b diff --git a/Windows.txt b/Windows.txt new file mode 100644 index 00000000..e69de29b