Chapter 2 - Software Flashcards Preview

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Flashcards in Chapter 2 - Software Deck (13)
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1
Q

What is application software ?

A

Application software enables the computer to do a particular task, such as word processing

2
Q

What is system software ?

A

It is the interface between computer hardware and user application programs

3
Q

What are the three functions of system software ?

A
  • Allocating memory
  • Storage
  • Processing time
4
Q

Describe how the system software deals with processing time ?

A

Divides processing time into time slices depend on the priority each task is allocated a number of these time slices

5
Q

What is real time processing and what are some applications ?

A
  • processing of data occurs immediately after it is input and updating occurs before next input occurs
  • airline or concert booking systems
6
Q

What is batch processing and what are some applications ?

A
  • data is collected over a period of time and processed together at a later time
  • billing systems, banking systems
7
Q

What is multi-user system processing and what are some applications ?

A
  • The operating system switches between computers giving each one a ‘time slice’
  • database management systems
8
Q

What is a utility application ?

A

It is a program that carries out a specific task to assist the operating system

9
Q

Name three utility applications

A
  • Disc defragmentation
  • task scheduling
  • data backup and restore
10
Q

Describe disc defragmentation

A

rearranges the data on a hard disk so that all the data is stored together and can be quicker to access

11
Q

Describe a backup

A

A second copy of a file made and stored on a different storage device

12
Q

What is an anti virus software ?

A

Scans files stored on a computer system, looking for viruses

13
Q

What is the anti-virus software main purpose

A

detect, locate and remove a virus