Keyboard
Keyboard is an input device used to enter text, numbers and many more symbols and commands into the computer system.
Notes
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 … Read more
How computer accepts input from keyboard?
Keyboard is one of the most used input devices. Keyboard is a device with keys for alphanumeric characters along with various other keys to assist using the computer by sending instruction to the computer. The process of sending an instruction to the computer from keyboard when a key in the keyboard has been pressed is described below.
“Keyboard is considered as an input device” – why?
Input Device
As it’s name implies, input devices are devices which can send signals to the CPU. That means, the device we use to send or enter a signal or data to CPU are called input device, such as; keyboard, mouse, microphone etc.
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 … Read more
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 … Read more
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 … Read more
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 … Read more
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 … Read more
“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 … Read more