Topic 7 AS-ICT

Selection and use of application software.

Systems software and applications software: Operating Systems

Operating systems (OS)

There different types of OS. But they are all very similar and do similar things. Every computer will need an OS to work. The main OS that are used today are Windws the most common (first picture). Linux a free OS that is being increasingly more popular dueto its security and its an open source (Second Picture). Macintosh is an apple OS that is used on apple products (Third Picture). And finally UNIX on of the oldest OS's (Fourth Picture).