Computer Glossary PDF. A to Z Terminology, Vocabulary, Terms, and definitions dictionary for Beginners to advance all level students. Highly Useful for IBPS, SBI (Bank PO & Clerk), SSC, Railway, Police, and all Other Competitive Exams Preparation.
Computer Glossary PDF
- Access Time: The time interval between the instance at which data is called from a storage device and the instance when delivery begins.
- Accumulator: A local storage area called a register, in which the result of an arithmetic and logic operation is formed.
- Analog Computer A computer that operates on data which is in the form of continuous variable physical quantities.
- Active Window: It is the currently focused window in the current window manager.
- Animation It is the process of making the illusion of motion and change by means of the rapid display of a sequence of static image that minimally differ from each other.
- Antivirus It consists of computer programs that attempt to identify threat and eliminate computer viruses and other malicious software (malware).
- Application Software It is a subclass of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform.
- Archive It provides backup storage.
- Arithmetic Logic Unit (ALU) It is a part of the execution unit, a core component of all CPUs. ALUs are capable of calculating the results of a wide variety of basic arithmetical and logical computations.
- Artificial Intelligence Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today.
- ASCII (American Standard Code for Information Interchange) It is a character set and a character encoding based on the Roman alphabet as used in Modern English and other Western European languages.
- Assembler A program that translates mnemonic statement into executable instruction.
- Attribute The characteristics of an entity are called its attributes.
- Authentication: Any process by which a system verifies the identity of the user who wants to access it.
- Auxiliary Memory It is also known as secondary memory that is not directly addressable by the CPU.
- Alphanumeric A character set that contains letters, digits and other special characters such as @, $, +, *, %, etc.
- Backspace Key This key is used to delete the text. Backspace will delete the text to the left of the cursor.
- Blog It is a discussion or informational site published on the world wide web.
- Bluetooth It permits a wireless exchange of information between computers, cell phones and other electronic devices.
- Backspace Key This key is used to delete the text. Backspace will delete the text to the left of the cursor.
- Backup A copy of a file or other item of data made in case the original is lost and damaged.
- Bandwidth The maximum amount of data that can travel in a communication path in a given time, measured in bits per second (bps).
- Bar Code It is a machine-readable representation of information in a visual format on a surface.
- Batch File It is a text file that contains a sequence of commands for a computer operating system.
- Binary Coded Decimal (BCD) A coding system in which a 4 digit binary number represents each decimal digit from 0 to 9.
- Bit It is the most basic information unit used in computing and information theory.
- Bomb A type of virus designed to activate at a specific date and time on your computer.
- Buffering The process of storing data in a memory device, allowing the devices to change the data rates, perform error checking and error retransmission.
- Bug It is an error, flaw, failure, or fault in a computer program or system that produces an incorrect or unexpected result.
- Byte It is commonly used as a unit of storage measurement in computers, regardless of the type of data being stored.
- Compile It is the process of converting high level languages to machine language
- Cell A box in a spreadsheet, in which you can enter a single piece of data.
- Central Processing Unit (CPU) It performs the actual processing of data. The CPU is generally called by its generic name ‘Processor’. It is also known as the brain of computer.
- Channel A communication channel can be a physical link, such as a cable that connects two stations in a network or it can consist of some electromagnetic transmission.
- Chatting Typing text into a message box on a screen to engage in dialog with one or more people via the Internet or other network
- Chip A tiny wafer of silicon containing miniature electric circuits that can store millions of bits of information.
- Client-Server It is a network architecture which separates the client from the server. Each instance of the client software can send requests to a server or application server.
- Command It is a directive to a computer program acting as an interpreter of some kind, in order to perform a specific task.
- Compiler It is a computer program that translates a series of instructions from high level language to machine language.
- Communication Protocol It is a system of rules that allow two or more entities of a communications system to transmit information.
- Computer Network It is a system for communication among two or more computers.
- Computer Graphics These are visual presentations on a computer screen. Examples are photographs, drawings, line arts, graphs or other images.
- Control Panel It is the part of Windows menu, accessible from the Start menu, which allows users to view and manipulate basic system settings and controls.
- Computer Worm It is a self-replicating computer program, similar to a computer virus.
- Control Unit It is the part of a CPU that directs its operation. The outputs of this unit control the activity of the rest of the device.
- Crawler: It is an Internet bot that systematically browse the World Wide Web, typically for the purpose of Web indexing. It is also called a Web spider.
- Cryptography The conversion of data into a secret code for transmission over a public network.
- Cut To remove an object from a document.