CompTIA A+ Notes


Ssddim = laptop  dimm = desktop ddr – 184pin ddr2 & ddr3 – 240 pin [view]

By: Bakerloo | Related Lesson: RAM | Modified: June 14, 2016

BIOS Security

Protect computer/BIOS from external threads (like theft) -> lock down that BIOS! BIOS Security Options S-Password / U-Password Supervisor password as ultimate authority User password Is given permissions by the supervisor Lojac (LoJack) S [view]

By: monimo | Related Lesson: Security | Modified: June 14, 2016

BIOS Diagnostics

Power On Selftest (POST) performed when starting a computer Set of instructions the BIOS executes to check different components of the computer that it needs in order to turn on  POST completely stops when it cannot pass a step without problems wi [view]

By: monimo | Related Lesson: Diagnostics | Modified: June 14, 2016

My Notes

BIOS – Basic Input Output System Commands to determine BIOS version (Windows) – MSINFO32 or DXDIAG [view]

By: jimmykim831 | Related Lesson: BIOS - Basic Input Output System | Modified: June 14, 2016

What bridges do

North bridge = CPU, RAM, GFX also talks to South Brigde which does PCIe and I/Os [view]

By: Bakerloo | Related Lesson: Chipsets - North Bridge, South Bridge & CMOS | Modified: June 14, 2016


Asynchronous transfer mode (ATM) is a switching technique used by telecommunication networks that uses asynchronous time-division multiplexing to encode data into small, fixed-sized cells. This is different from Ethernet or Internet, which use variab [view]

BIOS Configurations

In addition to providing the information about the computer, the BIOS allows the user to change and configure the components -> will be saved on the CMOS battery Boot configuration – order of operating systems for the computer to start from [view]

By: monimo | Related Lesson: Configurations | Modified: June 14, 2016

Serial Cable

Serial is the word used when you are refering to connection that transfers bit after bit consecutively. A Serial Cable can also be called a COM Cable, so when refering to a ”Serial Cable” it will be understood as a COM cable even though a [view]

By: marmont | Related Lesson: Serial Cables | Modified: June 21, 2016

BIOS - Component Information

Location of the BIOS on the motherboard:-> Round CMOS battery (Complementary metal-oxide-semiconductor) provides constant power to the semiconductor; works in conjunction with the BIOS as backup energy-> BIOS close by the CMOS battery-> Held [view]

By: monimo | Related Lesson: BIOS: Component Information | Modified: June 14, 2016

Types of Motherboard

Type of Motherboard ATX (Advanced Tech. extended) Micro ATX  Mini ITX [view]

By: okamiab | Related Lesson: Motherboards | Modified: June 14, 2016

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