10 Jul 2016

Computer Awareness Daily Glossary

Computer Awareness Daily Glossary
Computer Awareness Daily Glossary:
Dear Readers, Here we have given the list of important Computer Awareness Glossary, Candidates those who are preparing for the upcoming Banking exams can use this.

Backup: A backup or the process of backing up means making copies of data which may be used to restore the original data after a data loss event.
Bar Code: A bar code (often seen as a single word, barcode) is the small image of lines (bars) and spaces that is affixed to retail store items, identification cards, and postal mail to identify a particular product number, person, or location.
Biometric Device: Biometrics (or biometric authentication) consists of methods for uniquely recognizing humans based upon one or more intrinsic physical or behavioral traits.
Bitmap: In computer graphics, a bitmap or pixmap is a type of memory organization or image file format used to store digital images.
Bluetooth : Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances (using short wavelength radio transmissions in the ISM band from 2400-2480 MHz) between fixed and mobile devices, creating personal area networks (PANs) with high levels of security.
Booting: To boot (as a verb; also “to boot up”) a computer is to load an operating system into the computer’s main memory or random access memory (RAM).
Browse: In database systems, browse means to view data. Many database systems support a special browse mode, in which you can flip through fields and records quickly. Usually, you cannot modify data while you are in browse mode.
Band: Range of frequencies used for transmitting a signal. A band can be identified by the difference between its lower and upper limits, i.e. bandwidth, as well as by its actual lower and upper limits; e.g., a 10 MHz band in the 100 to 110 MHz range.
Bandwidth: The transmission capacity of a computer channel, communications line or bus. It is expressed in cycles per second [Hz], and also is often stated in bits or bytes per second.
Baud: The signalling rate of a line. It’s the switching speed, or number of transitions [voltage or frequency change] made per second.
Bias: A measure of how closely the mean value in a series of replicate measurements approaches the true value.
Binary: The base two number system. Permissible digits are “0” and “1”.
Bit: A contraction of the term binary digit. The bit is the basic unit of digital data. It may be in one of two states, logic 1 or logic 0. It may be thought of as a switch which is either on or off. Bits are usually combined into computer words of various sizes, such as the byte.

Bits per second: A measure of the speed of data transfer in a communications system.
Boolean: Boolean algebra is the study of operations carried out on variables that can have only one of two possible values; i.e., 1 (true) and 0 (false).
Bootstrap: A short computer program that is permanently resident or easily loaded into a computer and whose execution brings a larger program, such an operating system or its loader, into memory.
Branch: An instruction which causes program execution to jump to a new point in the program sequence, rather than execute the next instruction.
Buffer: A device or storage area [memory] used to store data temporarily to compensate for differences in rates of data flow, time of occurrence of events, or amounts of data that can be handled by the devices or processes involved in the transfer or use of the data.
Bug: A fault in a program which causes the program to perform in an unintended or unanticipated manner.
Bus: A common pathway along which data and control signals travel between different hardware devices within a computer system.
Byte: A sequence of adjacent bits, usually eight, operated on as a unit.

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