Computer and Information Technology (Physics) Part-VI

Blowfish is an symmetric encryption technique designed by Bruce Schneier in 1993 as an alternative to DES Encryption Technique. It is significantly faster than DES and provides a good encryption rate with no effective cryptanalysis technique found to date.

It is one of the first, secure block cyphers not subject to any patents and hence freely available for anyone to use.

The computer provides information after analyzing the input given by the user. It happens in a phased manner (i) Input, (ii) Processing, (iii) Computing, (iv) Outputting It is clear that the work of understanding is not done by a computer.

A software bug is an error, flaw, failure or fault in a computer program or system that causes it to produce an incorrect or unexpected result or to behave in an unintended way. Most bugs arise from mistakes and errors made by people either in program's source code or its design.

MICR is an acronym for Magnetic Ink Character Recognition. It refers to the formulation of toner used to print the specialized font at the bottom of cheques and other negotiable documents. It is mostly used in Banking sectors for processing of cheques through computer system.

O.M.R. is short for Optical Mark Reader. It is a method of entering data into a computer system. Optical Mark Reader reads pencil or pen marks made in pre-defined positions on paper forms as a response to questions or tick list prompts. It is used in checking of objective type answer paper

O.M.R. is short for Optical Mark Reader. It is a method of entering data into a computer system. Optical Mark Reader reads pencil or pen marks made in pre-defined positions on paper forms as a response to questions or tick list prompts. It is used in checking of objective type answer paper

L.R.C. stands for Internet Relay Chat. It is an application layer protocol which allows people to communicate with each other in real time in a text based environment. It is the form of Internet chat or synchronous conferencing on the real time.

2G is short for '2nd Generation' wireless telephone technology which enables us to send text and picture messages and has internet capabilities.

CAD (computer-aided design) software is used by architects, engineers, drafters, artists, and others to create precision drawings or technical illustrations. CAD software can be used to create two-dimensional (2D) drawings or three-dimensional (3D) models.

The GIF stands for 'Graphics Interchange Format'. It is a computer file format used for images and simple animation. It was developed by CompuServe in the late 1980s and grew in popularity with the proliferation of the Internet.

It allows high quality, high resolution graphics to be displayed on a variety of graphics hardware and is intended as an exchange and display mechanism for graphics images.