CompTIA A+ Notes

crt refresh & color

1280 x 1024 – 85Hz refresh rate (recommended) 16 bit – 65,636 colors (VGA) 24 bit – 16,777,216 colors [view]

By: benn22 | Related Lesson: CRT Refresh Rate & Color Depth | Modified: June 15, 2016


Bluetooth Class 1 – 100mW – 100m Bluetooth Class 2 – 2.5mW – 10m (fastest) Bluetooth Class 3 – 1mW – 1m (low powered) [view]

By: benn22 | Related Lesson: Wireless Bluetooth | Modified: June 15, 2016

address notes

mac address 12 digits, 6 pairs of 2.  0-f valid numbers. MAC= media access control TCP/IP= transmission control protocol / internet protocol [view]

By: divynes | Related Lesson: TCP/IP Configurations (part 1) | Modified: June 15, 2016

Error Checking

-Parity 8 bits + a 9th bit (checksum) is the final value odd its all good -ECC (Error Correcting Code) autocorrect but Memory expensive [view]

By: l3r050th | Related Lesson: Error Checking | Modified: June 15, 2016


-SIMM (Single Inline Memory Module) -> Single -DIMM (Dual Inline Memory Module) -> Double Buy only as much RAM as your Motherboard can handle [view]

By: l3r050th | Related Lesson: DIMM vs SIMM | Modified: June 15, 2016

BIOS Version

msinfo 32 and dxdiag [view]

By: NetTech | Related Lesson: BIOS - Basic Input Output System | Modified: June 16, 2016


northbridge, memory bank and graphics card, southbridge- pci slots, input output ports to update cpu, update motherboard(northbridge, southbridge, etc.) [view]

By: polishguy01 | Related Lesson: Chipsets - North Bridge, South Bridge & CMOS | Modified: June 15, 2016


Determine Bios Version MSINFO32 DXDIAG [view]

By: Isaac Fred | Related Lesson: BIOS - Basic Input Output System | Modified: June 15, 2016


RAM Random Access Memory allows CPU to interact and store temporarly information, process Information and makes logical decisions, allows funktions to perform on a computer RAM is volatile CPU stores information in SRAM (static RAM ) wich is faster a [view]

By: l3r050th | Related Lesson: RAM | Modified: June 15, 2016


pci, pci-x, pci-e/agp, cnr [view]

By: polishguy01 | Related Lesson: Expansion Slots | Modified: June 15, 2016

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