2.4 Operating Systems

Question 1

What is a operating system?

Answer 1

An operating system is a piece of software that manages the hardware and software, memory and process on a computer system.

Question 2

How does it help the CPU?

Answer 2

It mimics multi-tasking. if a user has multiple applications open it would share the time each application has on the CPU, meaning more efficient for the CPU.

Question 3

Single Operating systems.

Answer 3

Provides facility for one computer to be used by one person.

Question 4

Multi Operating systems

Answer 4

This means that lots of users are able to use the same operating system from different devices. each person can run more than one application, such as networking.

Question 5

What does a CPU have to do with the operating systems?

Answer 5

The CPU carry’s out the process of

Fetch, Decode, Execute.

Question 6

What is Fetch Decode Execute?

Answer 6

1) Fetch top instructions from a list
2)Instructions are then Decoded and interpreted
3)The instruction is then executed and then its repeated.
(It does it really fast)