Software - Chapter 2

transaction file

• temporary file

• permanent file

• backup file

• archive file

master file

• updated from transaction file

• contains only archived data

• is a temporary storage file

• is used for data entry only

batch processing

• individual data points processed one at a time

• groups of similar data - processed altogether in one go

• data processed in real-time as it arrives

• random data processed without any specific order

multi-user system

• A system where multiple users can access the same application simultaneously

• A system that allows many users at different computers sharing the same processor

• A system designed for single-user access only

• A system that restricts users to a single device

real time processing

• data processed as soon as it's entered

• data processed at the end of the day

• data processed in batches every hour

• data processed only when requested

Anti-virus software

• Software that scans files looking for a virus and then eliminates it.

• A program that enhances the speed of your computer.

• An application that manages your email accounts.

• Software that creates backups of your data.

operating system

• manages hardware resources and provides services for computer programs

• organises use of main memory between programs and data

• controls user access to files and applications

• executes commands from the user interface

Disc defragmentation

• Data stored together in blocks.

• Data scattered across the disk.

• Data encrypted for security.

• Data compressed to save space.

utility programs

• disc defragmentation

• task schedulers

• backup and restore

• file compression

application software

• programs e.g. Word, Excel

• hardware components of a computer

• operating system software

• networking software