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Question
Unix Operating systems is a ----
Multi Tasking Operating Systems
Time Sharing Operating System
Multi User Operating system
All the above
ANSWER : 4
Descrption
Unix - হলো 1970 সালে Ken Thompson ও Dennis Ritchie প্রমুখ কর্তৃক বেল ল্যাবরেটরিতে (Bell Lab) উদ্ভাবিত একটি multitasking, multiuser computer operating system । একই সময়ে একাধিক user এটি ব্যবহার করতে পারে বলে একে time saving operating system বলা হয়। তবে বর্তমান ‘time saving’ পদটি সাধারণত ব্যবহার না করে ‘multitasking’ পদটি ব্যবহার করা হয়। অর্থাৎ সঠিক উত্তর (d) All of the above ।
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