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Sanket Vora's Questions & Answers

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Define Bit

Asked by Sid in Computers & Technology at 5:36 PM on January 17, 2008

Sanket Vora's Answer

The smallest unit of information. One bit corresponds to a “yes or no.” Some examples of a bit of information: whether a light is on or off, whether a switch (like a transistor) is on or off, whether a grain of magnetized iron points up or down.The information in a digital computer is stored in the form of bits.

Answered at 5:46 PM on January 17, 2008

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Define Binary number system

Asked by Sid in Computers & Technology at 5:34 PM on January 17, 2008

Sanket Vora's Answer

A binary system is an astronomical term referring to two objects in space (usually stars, but also planets, galaxies or asteroids) which are so close that their gravitational interaction causes them to orbit about a common center of mass. Some definitions (e.g. that of double planet, but not that of binary star) require that this center of mass is not located within the interior of either object. A multiple system is like a binary system but consists of three or more objects.

Answered at 5:44 PM on January 17, 2008

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Define BLOB

Asked by Sid in Computers & Technology at 5:33 PM on January 17, 2008

Sanket Vora's Answer

(Binary Large OBject) A database field that holds any digitized information, including text, images, audio or video. Also known simply as a "large object" or LOB, a BLOB may have a huge storage capacity.

Answered at 5:40 PM on January 17, 2008

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Define BIPS

Asked by Sid in Computers & Technology at 5:31 PM on January 17, 2008

Sanket Vora's Answer

Barium impregnated polyethylene sphere.

Answered at 5:38 PM on January 17, 2008

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Define binary field

Asked by Sid in Computers & Technology at 5:32 PM on January 17, 2008

Sanket Vora's Answer

A field that contains binary numbers. It may refer to the storage of binary numbers for calculation purposes, or to a field that is capable of holding any information, including data, text, graphics images, voice and video.

Answered at 5:39 PM on January 17, 2008

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Define Batch File

Asked by Sid in Computers & Technology at 5:31 PM on January 17, 2008

Sanket Vora's Answer

This article is about MS-DOS scripting. For other types of batch programming.

Microsoft Batch File
File extension: .bat .cmd .btm
Type of format: Scripting

In MS-DOS, OS/2, and Windows, a batch file is a text file containing a series of commands intended to be executed by the command interpreter. When a batch file is run, the shell program (usually COMMAND.COM or cmd.exe) reads the file and executes its commands, normally line-by-line. A batch file is analogous to a shell script in Unix-like operating systems.

Batch files are useful for running a sequence of executables automatically. Many system administrators use them to automate tedious processes. Although batch files support elementary program flow commands such as if and goto, they are not well-suited for general-purpose programming.

DOS batch files have the filename extension .BAT. Batch files for other environments may have different extensions, e.g. .CMD in Windows NT and OS/2, or .BTM in 4DOS and related shells.

Answered at 5:37 PM on January 17, 2008

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Define barcode reader

Asked by Sid in Computers & Technology at 5:28 PM on January 17, 2008

Sanket Vora's Answer

A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a photo conductor translating optical impulses into electrical ones. Additionally, nearly all barcode readers contain decoder circuitry analyzing the barcode's image data provided by the photo conductor and sending the barcode's content to the scanner's output port.

Answered at 5:33 PM on January 17, 2008

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Define Bandwidth

Asked by Sid in Computers & Technology at 5:27 PM on January 17, 2008

Sanket Vora's Answer

Measurement of the capacity of a communications signal. For digital signals, the bandwidth is the data speed or rate, measured in bits per second (bps). For analog signals, it is the difference between the highest and lowest frequency components, measured in hertz (cycles per second). For example, a modem with a bandwidth of 56 kilobits per second (Kbps) can transmit a maximum of about 56,000 bits of digital data in one second. The human voice, which produces analog sound waves, has a typical bandwidth of three kilohertz between the highest and lowest frequency sounds it can generate.

Answered at 5:32 PM on January 17, 2008

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Define Band Printer

Asked by Sid in Computers & Technology at 5:25 PM on January 17, 2008

Sanket Vora's Answer

A line printer that uses a metal band, or loop, of type characters as its printing mechanism. The band contains a fixed set of embossed characters that can only be changed by replacing the band. The band spins horizontally around a set of hammers, one for each print column. When the required character in the band has revolved to the selected print column, the hammer pushes the paper into the ribbon and against the embossed image of the letter, digit or symbol.

Band printers can print up to approximately 2,000 lpm and can exist in very harsh industrial environments, although they are mostly used in datacenters. Band printers and line matrix printers are the two surviving line printer technologies.

Answered at 5:31 PM on January 17, 2008

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Define BIOS

Asked by Sid in Computers & Technology at 5:29 PM on January 17, 2008

Sanket Vora's Answer

(Basic Input Output System) An essential set of routines that sets up the hardware in a PC and boots the operating system. Prior to loading the operating system, the BIOS provides basic software drivers for all peripheral technologies that are part of the PC's motherboard, including the keyboard, mouse, monitor and hard disk. The drivers enable the user to edit configuration settings and allow the hardware to access the hard disk, optical disk or floppy disk to obtain the operating system.

After the operating system is loaded, more elaborate drivers are typically loaded, which replace the BIOS routines used to boot the system. The BIOS also supports internal services such as the real time clock (time and date).

Answered at 5:34 PM on January 17, 2008

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