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15 Cards in this Set

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Operating System

A piece of software that allows the user to interact with the hardware and software.

Functions of an Operating System

Memory Management


User Interface


Multi-tasking


Peripheral Management


Security

Memory Management

Allows the user to store data in the correct location (Ram, Cache, HDD)

User Interface

This gives the user a visual display to navigate.

Multi-tasking

Allows the computer system to run more than one program at a time.

Peripheral Management

Allows adtional hardware to be added to the computer. Also, drivers are installed.

Security

This prevents unwanted computers accessing the system.

Utility Software

Pieces of software that perform specific tasks to help maintain the performance of a computer.

Security


(What are the three security features of an operating system?)

- Antivirus


- Antispyware


- Firewalls


FAF

Disk Organisation


(What are the three disk organisation features of an operating system?)

- Formatting


- File Transfer


- Defragmentation


FDF

System Maintenance


(What are the three system maintenance features of an operating system?)

- System Info and Diagnosis


- System Clean-Up tools


- Automatic Updating


SAS

Custom Written Software

Software that is created for a company, for a specific purpose.

Off-The-Shelf

Software that can be brought from the shop, ready to install.

Open-Source

In Open-source software, the source code can be changed. It is usually cheaper

Proprietary Software

Software that is created by a company. A license must be bought. The user cannot change the functionality of the software.