Answers

2013-12-29T23:51:53+08:00
It is software (or rather set of software) that provides services for computer programms and manages computer hardware resources. Applications generally don't work without operating system.

Examples: Windows, Linux, Android, iOS
0
2013-12-30T14:44:30+08:00
the software that supports a computer's basic functions.
example: cellphone, computer, tablet, t.v ,cd
0