Computer Input Devices

What is Input “Any data or instruction that is used by a computer is called input”. This data or instruction can come directly from end-user or from other devices. For example, while you prepare word documents or spreadsheets, you use the keyboard to enter text & numbers and use command keys to save / print documents. … Read more

Types of Printers

all types of printer

“A printer is an external output device that takes data from a computer and generates output in the form of graphics/text on a paper”. A printer is a mechanical or electro-mechanical device that marks an image on a surface such as paper, film, or other material. Printers of computer type send the output to a … Read more

Number System in computer

“A set of values used to represent different quantities is known as Number System“. For example, a number system can be used to represent the number of students in a class or the number of viewers watching a certain TV program, etc. The digital computer represents all kinds of data and information in binary numbers. … Read more

Difference between FAT & NTFS

category:  Introduction to Computing Table of Contents 0.1.FAT File system 0.2.NTFS File system Difference between FAT & NTFS File Systems FAT File system It provides no security if the user logs in locally. The file and folder level security permission does not exist. It supports only 8 characters long file name. It is suitable for … Read more

Types of File Systems | FAT | FAT32 | NTFS | exFAT | HFS+| APFS |

different type of files with laptop

Everything is stored as files in a computer system. The files can be data files or application files. Each operating system has its own way of organizing data internally. The operating system performs this management with the help of a program called File System. The type of file system is used to determine how data … Read more

Analog Digital Hybrid computers

There are three basic kinds of computers. This is based on the hardware structure and the way physical quantities are represented in a computer. The following are the three types. Analog, Digital and Hybrid Computer Analog Computers Analog computers are used to process analog data. Analog data is of continuous nature and is not discrete … Read more

Five Generations of Computers

The development of electronic computers can be divided into five generations depending upon the technologies used. The following are the five generations of computers. First Generation of Computers (1942-1955) Image Courtesy: www.computerhistory.org The beginning of the commercial computer age is from UNIVAC (Universal Automatic Computer). It was developed by two scientists Mauchly and Echert at … Read more

Uses of Computers in various fields

Computers are used in so many fields in our daily life. From Engineers to Doctors, Students, Teachers, Government organizations they all use computers to perform specific tasks, for entertainment or just to finish office work. Computers have made our life easier. With greater precision and accuracy and less time taking computers can do a lot … Read more

Four types of computers

four types of computer

Since the advent of the first computer different types and sizes of computers are offering different services. Computers can be as big as occupying a large building and as small as a laptop or a microcontroller in mobile & embedded systems. The four basic types of computers are as under: Supercomputer ​Mainframe Computer Minicomputer ​Microcomputer … Read more