Operating System (OS)
OS :- It is system software which works as an interface between user and hardware. Types of OS :- (1) Single user OS :- Allows one user at a time. Like PC.e.g. MS DOS. (2) Multi user OS :- Allow multiple users at a time. Like Network.e.g. Unix,Linux. (3) Multitasking OS :- Work on more than one processor at a time and allow users to switch between running applications.e.g.Linux, Unix. (4) Real Time OS :- Processing done within a time constraint. Like Flight reservations,Military applications.e.g.HP-RT. (5) Embedded OS :- It is self contained in the device & resident in ROM. Like Microwave,washing machines.e.g.Win.CE. (6) Batch processing OS :- No.of jobs are put together & executed as a group.e.g.Unix. (7) Distributed OS :- Data can be stored & processed on multiple locations. Like IBM RS/6000 e.g.Unix. (8) Mobile OS :- Operates on smart phones,tablets & digital mobile phones.Mobile OS classified as : * Android :- Introduced by Google in 2007.Based on ...