DATABASE

A database is an organised collection of interrelated data.

Databases can be divided into two categories

1. NON-COMPUTERISED DATABASES

· Mainly paper based which can be easily destroyed

· Stored in filing cabinets, boxes, folders etc & can be a security problem

· Bulky, needs to be housed in warehouses

· Many ways to store and retrieve data which takes time to organise

2. COMPUTERISED DATABASES

· Mainly uses magnetic or optic media that can be easily backed up

· Stored on tapes or disks

· Takes up less room

· Software that builds, maintains and gives access to many databases is called Database Management Systems (DMS)

· Data can be retrieved quickly by many users for various purposes

Theory