Computer Fundamentals and System Concepts

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.

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

Mainframe Operating System are large centralized computers and at one time they provide bulk of business computing through time sharing.

It is correct becuase the resolution of a display card is measured in pixels and also depends on the pixel size. As the number of pixel increases the display will become more clear.

It is the power connector used to supply power to the motherboard.

Baby AT form factor supports maximum of 8 slots.

Mother board is also known as printed circuit board where all the components of a sytem are connected.