OPERATING SYSTEMS : - IT IS AN INTERFACE BETWEEN THE USER AND COMPUTER OR HARD-WARE AND SOFTWARE COMBINED TOGETHER IS KNOWN AS OPERATING SYSTEM.
THERE ARE 3 TYPES OF OPERATING SYSTEMS : -
1. SINGLE USER SINGLE TASK OPERATING SYSTEM : -
EX : MS-DOS
2. SINGLE USER MULTI-TASK OPERATING SYSTEM : -
EX : ALL CLIENT BASED O/S
3. MULTI-USER MULTI-TASK OPERATING SYSTEM :
EX : ALL SERVER BASED O/S.
NOTE : EX FOR ALL CLIENT BASED O/S ARE WIN-98 , WIN-2000 PROF , XP – PROF.
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