CompTIA A+ Notes

BIOS - Basic Input Output System

BIOS = Basic Input Output System Allows to turn on the computer, select an operating system and load some basic information BIOS is a small chip on the motherboard Firmware loaded on BIOS Firmware controls a single hardware tool Correct way to f [view]

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


STP= Shielded twisted pair UTP=Unshielded twisted pair  [view]

By: bigikes | Related Lesson: Twisted Pair Cables - STP vs UTP | Modified: June 14, 2016


SATA(Serial Advanced Technology Attachment): It is a 7 pin cable that has a min. length of 12” and a max. length of 1 metre, if the cable is shorter than the minimum 12” there will be issues with the connection, the SATA comes in 4 varian [view]

By: marmont | Related Lesson: SATA & IDE/PATA Cables | Modified: June 15, 2016

Fire Safety

PVC cables is used mostly in homes and Plenum is used in Business places in walls and in the celling. [view]

By: bigikes | Related Lesson: Network Cables - Fire Safety PVS vs Plenum | Modified: June 14, 2016


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By: mr3g0 | Related Lesson: NTFS Files & Folders | Modified: October 11, 2016

BIOS: Security

If your computer is not with you, and you don’t want people messing with the BIOS, use BIOS Security Options. Ways to Use BIOS Security Supervisor Password User Password LOJAK (Locate Computer) TPM (Trusted Platform Module) [view]

By: olaf | Related Lesson: Security | Modified: July 19, 2017

BIOS: Diagnostics

On boot up, the BIOS performs a test called the POST (Power On Self Test). This is where the BIOS checks all the diffrent components it needs in order to work properly. If any part of this test fails, the computer will just stop and power off. ORDER [view]

By: olaf | Related Lesson: Diagnostics | Modified: July 19, 2017

BIOS: Configurations

In addition to being able to see the components like RAM, the Hard Drive(s), Optical Drive, and CPU, the BIOS can also change them. This information is saved on the CMOS The boot order is what gets read and started in order at boot up. Devices That Y [view]

By: olaf | Related Lesson: Configurations | Modified: July 19, 2017

Video connector

VGA – analog DVI – digital [view]

By: chubby0cheese | Related Lesson: VGA & DVI Cables | Modified: June 14, 2016


CRT – Cathode Ray Tubes (Terminals) [view]

By: benn22 | Related Lesson: CRT - Cathode Ray Terminals | Modified: June 14, 2016

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