oper sys two

Question 1

purpose of an os

Answer 1

responsible for controlling/communicating with the computer hardware

Question 2

what are the 4 functions of an os

Answer 2

peripheral management
memory management
user interface
multi tasking

Question 3

what is open and closed source

Answer 3

Open-source programs are distributed with the code or program distributed as a readable format
Closed-source programs are distributed as executable code only and can only be modified by the original author who keeps the original program.

Question 4

what is compilation

Answer 4

convert a high-level programming language into a machine language that the computer can understand.

Question 5

what are the stages of compilation

Answer 5

lexical analysis -( check valid or not )
Syntax analysis-( check if follows rules )
Code generation -( convert the code )
Code optimisation-( make it most efficient )

Question 6

what is a device driver

Answer 6

software that provides an interface so that programs can use the device

Question 7

What’s periphal management

Answer 7

They communicate and control devices

Question 8

application software

Answer 8

designed to perform tasks for users of computer