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March 2018

5 Differences between disk and diskette drives

Differences between disk and diskette drives: The differences between disk and diskette drives are as follows. No. Subject Disk Drives Diskette Drives 1 Number of drives Every computer has at least one disk driver Diskette drives are optional 2 Capacity Storage capacity can reach up to a few terabytes Very little capacity, up to few …

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How computer accepts input from keyboard?

When we press a key, a tiny chip in the keyboard called keyboard controller notes that a key has been pressed. Keyboard controller places a coed in the buffer of the keyboard to indicate which key was pressed. Keyboard buffer is a temporary memory of the keyboard controller. The keyboard controller sends a signal to the system software notifying that something happened at the keyboard.

What are the basic four parts of computer. Describe.

No matter how big it is or how it is used, every computer is a part of a system. A complete computer system consists four basic parts, such as; (a) Hardware (b) Software (c) Data (d) User (a) Hardware: The mechanical devices that make up the computer are called hardware. Hardware is any part of …

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Write short notes on desktop computers, workstations, notebooks, tablet PCs, handheld PCs and smart phone

Desktop Computers: The most common type of computer is desktop computers. It has been designed to sit on a desk. Today’s desktop computers are much more powerful than the others and used for an amazing array of task. Not only do these machines enable people to do their jobs with greater ease and efficiency, but …

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What do you mean by modern computer?

Modern Computer: In basic terms, computer is an electric device that process data, converting it into information which is useful to people. Any computer regarding of its type is controlled by programmed instructions which give the machine a purpose and tell it what to do. The word ‘computer’ comes from the word ‘compute’ which means …

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Compare between the working procedure of a computer and a human being

Comparison Between the Working Procedure of a Computer and a Human Being: There are some similarities between the working procedure of a human being and a computer. The main deference is that human has a sense using which it takes decisions and perform a task by itself, whereas a computer need instructions or data to perform …

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Differences among various types of digital computers in respect of their size, cost and working efficiency

There are 4 kinds of digital computers in respect of their size, cost and working efficiency;such as (a) Microcomputer (b) Minicomputer (c) Mainframe Computer and (d) Super Computer (a) Microcomputer: ‘Mirco’ means very small. Thus as it’s name implies, microcomputers are small in size and built with microprocessors. It has CPU, ROM, RAM storage and …

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“Computer can be classified into 2 or 3 ways depending on it’s implementation or working principle” – Explain

Depending on implementation computers can be classified into 2 ways, such as, (a) General Computer (b) Special Computer (a) General Computer: General purpose computers are computers where user is not limited to a set of initially installed programs and their function. Rather than this, user can install many other programs to perform various function depending …

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