Storage in a computer could be harddidk, c d rom, floppy disk, flashdisk
Computers are categorised into supercomputers, mainframe, mini and lastly micro
Further classification is analog, digital and hybrid
Program instruct computers in a set language and are categorised in operating systems, application system software, utility and lastly programming language
Examples of operating systems that manage, control and links all the resources, work and user are windows, MS dos, PC dos, IBM dos, Unix, android, Symbian based, Linux, xenon
Application system software perform specific tasks in a computer
Examples are spread sheet, word processing, data base managent system naming a few
Utility programs check and fix program that arise like file cluttering
Example are disk fragmentation program, antivirus, cleaners
Programming languages like c++, c, fortran, COBOL, Java runtime, python write application programs
