1.5 system software

Question 1

what do operating systems do?

Answer 1

controls hardware and manages files, computer memory, peripherals and users

Question 2

what is a user interface?

Answer 2

a program that allows a user to interact with a computer:

Question 3

what is multitasking?

Answer 3

being able to run multiple programs at the same time. only possible if the operating system can support multitasking and if the computer has enough memory to hold multiple programs in primary memory at the same time

Question 4

what is utility software?

Answer 4

helps maintain a system. includes: encryption, defragmentation, data compression and backup software

Question 5

what is defragmentation?

Answer 5

reorganizing data on a hard disk to place the pieces of files into contiguous blocks, which speeds up data access and improves computer performance