Computer (Topics)

Memory Units

Memory Units:    4 bit = 1 nibble    8 bit = 1 byte    1024 B = 1 KB (Kilo Byte)    1024 KB = 1 MB (Mega Byte)    1024 MB = 1 GB (Giga Byte)    1024 GB = 1 TB (Tera Byte)    1024 TB = 1 PB (Peta Byte)    1024 PB = 1 XB (Exa Byte)   1024 XB = 1 ZB (Zeta Byte)    1024 ZB = Read More

Computer - Input Devices

Computer - Input Devices   Following are few of the important input devices which are used in a computer: Keyboard Mouse Joy Stick Light pen Track Ball Scanner Graphic Tablet Microphone Magnetic Ink Card Reader(MICR) Optical Character Reader(OCR) Bar Code Reader Optical Mark Reader(OMR)   Keyboard Keyboard is the most common and very popular input device which helps Read More


FUNCTIONAL UNITS OF COMPUTER Arithmetic Logical Unit (ALU): ALU performs arithmetic and logic operations like Addition, subtraction, multiplication, division, logic and comparison. It is a part of the execution unit. Control Unit (CU): Control unit controls the operations for all parts of the computer. It does not perform any data processing operations. It gives the command to transfer data from the input device into memory and from me Read More


COMPUTER MEMORY The internal storage area of computer which holds the data and instruction during processing is called the Computer Memory. In computer’s memory both programs and data are stored in the binary form. The memory is divided into large number of small parts. Each part is called cell. Each location or cell has a unique address, which varies from zero to memory size minus one. For example, if computer has 64k wo Read More


GENERATIONS OF COMPUTER   First Generation (1946-1959) Vacuum tubes were used for the basic component of memory and circuitry for CPU.GENERATIONS OF COMPUTER Batch processing operating system, punched card, Paper Tape, Magnetic Tape Input and Output device were used. Machine codes and electric wired board languages were used. Used for scientific; later simple business system. Some computers of this generation w Read More

List of Computer Abbreviations and Meanings

List of Computer Abbreviations and Meanings   A ACE – Access Control Entry ACL – Access Control List ADO – Active Data Objects ADSL – Asymmetric Digital Subscriber Line AGP – Accelerated Graphics Port AI – Artificial Intelligence ALGOL – Algorithmic Language ALU – Arithmetic Logic Unit ANSI – American National Standards Institute AOL &nda Read More

Important features of Mouse & Keyboard

Important features of Mouse & Keyboard   MOUSE  The Mouse is A device that controls the movement of the cursor or pointer on a display screen. A mouse is a small object you can roll along a hard, flat surface.List some of the important features of Mouse & Keyboard Its name is derived from its shape, which looks a bit like a mouse, its connecting wire that one can imagine to be the mouse’s tail, and t Read More


BASIC BUT USEFUL COMPUTER TERMINOLOGY AND GLOSSARY There is a huge list of computer terminology in computer world. But below a small list of useful computer terminologies can help to gain related general knowledge. Find a searchable glossary of computer and Internet terms with simple definitions and mini explanations those are easy to understand, covering both the basic and the little advance.   A Computer is an electronic mac Read More

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