OPERATING SYSTEM OBEJECTIVE

OPERATING SYSTEM CONCEPTS

Preemptive sheduling is one in which the current executing process is suspended and another process is executed and suspended process is resumed.

Thrashing occurs due to the quick paging in small intervals. So the CPU waste time in paging activity rather doing actual work

A diamond indicates a point where a decision is made like yes/no, no/go, etc.

Locality of reference, also known as the principle of locality, is the phenomenon of the same value or related storage locations being frequently accessed.

"Lexical analysis" is associated with recognition of basic elements and creation of uniform symbols

Page stealing is taking page frames from other working sets

Bug means A logical error in a program

Memory management is replaced with virtual memory on current systems

Spooling- The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk.

Seeks analysis is used for analyzing device busy problems

What problem is solved by Dijkstra's banker's algorithm?

Ans-deadlock avoidance

Swapping allows each program in turn to use the memory

A translator is best described as a system software

A Processor  is a device that performs a sequence of operations specified by instructions in memory.

A translator which reads an entire programme written in a high level language and converts it into machine language code is Compiler


     Operating System Concept 2