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Flashcards in Operating Systems Deck (6)
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1

Operating
System

A suite of programs designed to control the operations of the computer. This software hides the complexities of the hardware from the user. It acts as the interface between the user and the hardware and provides the user with a virtual machine.

2

Utility Software

Utility software is system software designed to help analyse, configure, optimise or maintain a computer.

3

Batch OS

All data to be input is gathered together offline, then processed sequentially in one operation without manual intervention e.g. ATM

4

Real time
control OS

An operating system that produces outputs from unpredictable, non-sequential and/or parallel inputs fast enough to affect the next input e.g. cars/chemical
plant

5

Real time
transaction OS

Deals with each set of data from the user as it is submitted and the system is in two-way communication with the user. It uses predictable response times to requests. e.g. concert tickets

6

Spooling

Carried out when a user wants to print several documents at once, documents placed in queue (or spool) and printed when printer is free.