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When did IBM released the first version of its disk operating system DOS version 1.0 ?

  • 1981
  • 1982
  • 1983
  • 1984

Answer: Option A

Similar Questions :

1. By which of following the problem of thrashing is significantly affected ?

  • program size
  • program structure
  • primary storage
  • secondary storage

Answer: Option B

2. Which type of software can be used to merge data of two files in one file ?

  • System software
  • Networking software
  • Documenting software
  • Utility Software

Answer: Option D

3. What are global locks ?

  • they synchronize access to local resources
  • they synchronize access to global resources
  • they synchronize access to local and global resources
  • none of above

Answer: Option B

4. In which of the following usually a front end processor is used ?

  • Virtual storage
  • Timesharing
  • Multiprogamming
  • Multithreading

Answer: Option B

5. Distributed systems should ?

  • high security
  • have better resource sharing
  • better system utilization
  • low system overhead

Answer: Option B

Read more from - Operating System Questions Answers - Set 2
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