Operating System Interview Question and Answers

6. What is Throughput, Turnaround time, waiting time and Response time?
  • Throughput : number of processes that complete their execution per time unit.
  • Turnaround time : amount of time to execute a particular process.
  • Waiting time : amount of time a process has been waiting in the ready queue.
  • Response time : amount of time it takes from when a request was submitted until the firstresponse is produced, not output (for time-sharing environment).
7. What are the various components of a computer system?
  • The hardware
  • The operating system
  • The application programs
  • The users.
8. What is a Real-Time System?
  A real time process is a process that must respond to the eventswithin a certain time period. A real time operating system is an operating system that can run realtime processes successfully.
9. Explain the concept of the Distributed systems?
  Distributed systems work in a network. They can share the network resources,communicate with each other.
10. What is SCSI?
  SCSI - Small computer systems interface is a type of interface used for computer components such as hard drives, optical drives, scanners and tape drives. It is a competing technology to standard IDE (Integrated Drive Electronics).
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