CompTIA A+ Exam 220-901: BIOS and Startup

This path is intended for anyone who wishes to enter the IT professional field, and requires entry-level training to get them started with a career in technical support.


Expected Duration
93 minutes

When your computer first starts up, it goes through a complex series of setup and initialization routines. This course will teach you what it’s doing and why. The course covers all of the firmware functions in a computer and describes the BIOS setup and security utilities, the POST process, and all of the other built-in configuration options.


The Computer BIOS

  • start the course
  • describe BIOS
  • describe CMOS
  • describe POST
  • describe the need for diagnostics
  • describe the common modification options
  • describe how to monitor temperature and fan speeds
  • describe how to monitor voltage clock and bus speeds
  • describe how to flash the BIOS
  • describe audible POST error codes
  • describe CMOS battery
  • describe POST card
  • describe BIOS UEFI
  • describe general BIOS settings
  • describe controlling the boot sequence
  • describe setting date and time
  • describe SATA operation
  • describe integrated peripherals
  • describe BIOS security
  • describe BIOS performance
  • describe USB configuration
  • describe BIOS TPM and lo-jack
  • describe BIOS general and temperature
  • describe CPU and memory

Practice: Identify BIOS Features

  • identify BIOS features





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