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What is Machine Language ? Computer programs are written using many different computer Languages but the language which is understood by the computer without translating programis called machine language. Machine language is normally written as string of binary 1s and 0s. A machine language instruction has two part format. OPCODE (OPERATION CODE) OPERAND (ADDRESS) The…
What is Computer a Language ? A computer can only do what a programmer asks it to do. To perform a particular task programmer writes a sequence, called the program. An instruction command given to the computer to perform a certain specified operation on the given data. Now as we know only human languages and…
What is a Parity Check ? A parity check is a technique to detect the correctness of characters transmitted. For each character transmitted, a bit knows as the parity bit is added. In an Even Parity System, a parity bit is added such that the total number of ‘1’s, inclusive of the parity bit, is…
What is UniCode ? With the onset of globalization through Internet, there emerged a need to Cater for data interchange of the more common languages of the different nationalities like Chinese, Korea and Japanese. ASCII, EBCDIC and other forms of representation proved insufficient. The Unicode/ISO 10646 standard was devised to overcome this problem. The 16…
What is EBCDIC ( Extended Binary Coded Decimal Interchange Code ) EBCDIC stands for Extended Binary Coded Decimal Interchange Code. It uses 8 bits and can represent 256 distinct characters. It also uses one extra parity bit for parity check. The EBCDIC code is used in IBM mainframe models and other similar machines. Electronic Circuits…
What is ASCII ( American Standard Code for Information Interchange ) ASCII stands for American Standard Code for Information Interchange. In this form of representation, each character (which includes alphabets, digits and symbols) is assigned a particular pattern of bits. For example, A is represented as binary 1000012, B as 10000102 and so on. The…
What is Binary Coded Decimal ? BCD stands for Binary Coded Decimal. BCD code is one of the early computer codes. It is based on the idea of converting each digit of a decimal number into its binary equivalent rather than converting the entire decimal into binary form. All decimal digits are represented in BCD…
What is a Blu-Ray Disk (BD) ? Blue-Ray disk is an optical disc storage media format. It was developed by blue-ray disc associations. It is mainly used to store high definition video and data. It has same dimensions as CD or DVD. The violet coloured laser is used to read and write the data. Because…
What is a Pen Drive ? Advantages or Disadvantage of Pen Drive What is a Pen Drive ? It consists of a small printed circuit board encased in a robust plastic or metal casing. It is easy to carry in pocket. It uses standard-A type connection which allows it to directly connect with the computer….
What is a ZIP Disk ? Advantages or Disadvantages of ZIP Disk What is a ZIP Disk ? It’s a high capacity, removable magnetic disk which can be read or write by ZIP drive. It is similar to floppy disk except that much faster & larger capacity. Zip disks are available in two size namely…