Operating Systems Questions

Q:

Differentiate between Complier and Interpreter?

Answer

An interpreter reads one instruction at a time and carries out the actions implied by that instruction. It does not perform any translation. But a compiler translates the entire instructions

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Q:

What are the key object oriented concepts used by Windows NT?

Answer

Encapsulation, Object class and instance.

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Q:

What are the various types of CPU registers in a regular operating system design ?

Answer

 Stack Pointer
 Index Registers
 Accumulators
 General Purpose Registers

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Q:

How many jobs can be run concurrently on MVT?

Answer

15 jobs.

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Q:

What is hard disk and what is its purpose?

Answer

Hard disk is the secondary storage device, which holds the data in bulk, and it holds the data on the magnetic medium of the disk.Hard disks have a hard platter that holds the magnetic medium, the magnetic medium can be easily erased and rewritten, and a typical desktop machine will have a hard disk with a capacity of between 10 and 40 gigabytes. Data is stored onto the disk in the form of files.

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Q:

What are the operating system components?

Answer

- Process management


- Main memory management


- File management


- I/O system management


- Secondary storage management


- Networking


- Protection system


- Command interpreter system

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Q:

What is a shell?

Answer

A shell is an interactive user interface to an operating system services that allows an user to enter commands as character strings or through a graphical user interface. The shell converts them to system calls to the OS or forks off a process to execute the command. System call results and other information from the OS are presented to the user through an interactive interface. Commonly used shells are sh,csh,ks etc.

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Subject: Operating Systems Exam Prep: GATE

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Q:

Explain the concept of the Distributed systems?

Answer

Distributed systems work in a network. They can share the network resources, communicate with each other.

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