YEAR 1 CO1 WEEK 26 BIOS + VM

Question 1

Define booting.

Answer 1

Allows OS to be loaded from initial start up.

Question 2

What does the bios do?

Answer 2

A small program which is responsible for booting up a computer.

Question 3

What is BIOS

Answer 3

Basic input output system
- Small program that runs before operating system kicks in
- stored in ROM
- basic hardware settings and instruction
- can be updated but rarely
- firm ware

Question 4

What happens when you press the power button on computer?

Answer 4

• Sends hardware reset signal to CPU
• when CPU get the signal it get a jump command to the BIOS
• Once post been passed bios will initialise the computer internals peripherals checks in order of the “boot order”hardrive
• system boots up drive
• from master boot record the bios finds which drive has boot loader

Question 5

What’s POST

Answer 5

Power on self test- checks if everything is where it should be
Once all checks done starts bios

Question 6

What Does POST check for

Answer 6

BIOS not currupted
System chips are ok
Processor is ok
System memory ok
Keyboard present
Video display memory is ok

Question 7

What are virtual machines

Answer 7

Using hardware to run software
Trying to run another operating system in window