Computer Fundamentals and System Concepts

System call is a method by which a program makes a request to the OS.

Both the statements are false about worm.

ii replicates itself and so does iii.

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Read only memory is the full form of ROM in which, data written gets stored permanently.

A patch is a software prepared to update the computer. It includes fixing securities and bugs and improves the performance of the computer. It is freely available on the internet.

The operating system controls the input and output of the computer. It directs the flow of information to and from the CPU.

This is the component of the computer system that defines the ways in which the system resources are used to solve the computing problems of the users.

This process in system software refers to a process where a simple system activates another more complicated system that serves the same purpose.

This utility program facilitates the backing-up of disk. Back-up means duplicating the disk information so that in case of any damage or data-loss this backed-up data can be used.

An instruction is a command to the microprocessor to perform a given task on a specified data.

Data bus carries data in binary form between microprocessor and other external unit.

A sequence of instructions telling the computer what to do is called a program.

Microprocessor  uses program counter to sequence the execution of the instruction.

Operating System is a program that controls the execution of an application program and acts as an interface between the user and the computer hardware.