Basic Computer Information: Managing Files and Folders

Basic Computer Information: Managing Files and Folders: Logging In and Selecting a Desktop To start a normal login, just enter your username and password. System Performs a system action, such as ...

Basic Computer Information: What is “open source”?

Basic Computer Information: What is “open source”?:   In brief, open source software is software which meets the following criteria: 1. Unrestricted redistribution. Open source software can ...

Basic Computer Information: Open Source Operating System

Basic Computer Information: Open Source Operating System: Open source refers to a program or software in which the source code (the form of the program when a programmer writes a program in a partic...

Basic Computer Information: Basic Operating System

Basic Computer Information: Basic Operating System:  A  computer  consists  of  various  components  such  as  input  device,  storage  device,  output  device  and  CPU.    All  these compone...

Basic Computer Information: Application Software

Basic Computer Information: Application Software: Software that is required for general and special purpose applications like database management, word processing; accounting, etc. are calle...

Basic Computer Information: System software

Basic Computer Information: System software: Software that is required to control the working of hardware and aid in effective execution of a general user’s applications are called Syst...

Basic Computer Information: software

Basic Computer Information: software:  A computer is hardware and it is useless unless it is provided with the necessary software. Therefore, all computer users must be aware of ...

Basic Computer Information: Difference between Assembler and Compiler

Basic Computer Information: Difference between Assembler and Compiler: An assembler refers specifically to such a program that takes as its input assembly language. Assembly language is a very "low-level&qu...

Basic Computer Information: compilers

Basic Computer Information: compilers:  As contrast to interpreters, compilers provide faster execution speed. Compilers do not translate and execute the instructions at the same ...

Basic Computer Information: interpreters

Basic Computer Information: interpreters: Instructions of a high level language are coded in many statements. At the time of their execution, they are converted statement by statemen...

Basic Computer Information: Assemblers

Basic Computer Information: Assemblers: translate the assembly language code (source program) into machine language code (object program). After assembling, a linker program is use...

Basic Computer Information: Translators

Basic Computer Information: Translators: are the programs / utilities, which are basically used by programmers to convert high or middle level language to lower level language. We n...

Basic Computer Information: Assembly language

Basic Computer Information: Assembly language: is a low level programming language. It is a symbolic representation of machine code. Assembly language is designed for specific processors....

Basic Computer Information: Low Level and High Level Languages

Basic Computer Information: Low Level and High Level Languages: Low  level  language  is  a  type  of  programming  language  that  provides  little  or  no  abstraction  from  a  computer's microproc...

Basic Computer Information: Computer Languages

Basic Computer Information: Computer Languages: To communicate with the computer, you need to know a language that a human and computer can understand. A programming language is designed t...

Basic Computer Information: The bar code

Basic Computer Information: The bar code: reader is an optical input device, which is used to read the values or quantities printed on the products in the form of vertical bars known...

Basic Computer Information: The light pen

Basic Computer Information: The light pen: is a pointing device, which is used to choose objects or commands on the screen either by pressing or moving it on the surface of the screen...

Basic Computer Information: OMR

Basic Computer Information: Omr: is a device that detects predefined marks on a certain portion of a paper. It allows electronically extracting intended data from marked fie...

Basic Computer Information: OCR

Basic Computer Information: Ocr: is a device, which scans the printed textual material then converts it into an electronic form and stores it in a file on the computer or di...

Basic Computer Information: MICR

Basic Computer Information: MICR:   is a technique, which is used to verify the originality of paper documents, especially cheques. It provides a secure and high speed method...

Basic Computer Information: Direct Data Entry

Basic Computer Information: Direct Data Entry: Describing the Basic Concepts of Direct Data Entry There are devices, which read or detect the information and convert it into an electronic...

Basic Computer Information: Computer Memory and Units of Memory

Basic Computer Information: Computer Memory and Units of Memory: A bit is a binary representation; either 0 or 1 and combination of bits make up the bytes, kilobytes and so on, where: 1 Nibble = 4 Bits 1 B...

Basic Computer Information: Understanding Computer System

Basic Computer Information: Understanding Computer System:  A computer is an electronic machine that is used for manipulating data according to a list of instructions provided by the user. A computer...

Basic Computer Information: Applications of computers in various fields

Basic Computer Information: Applications of computers in various fields: Computers have their application or utility everywhere. We find their applications in almost every sphere of life–particularly in fields whe...

Basic Computer Information: Types of Computer

Basic Computer Information: Types of Computer:   Microcomputers or Personal computers: Microcomputers are small in size. They can fit on a desk top. These computers are used by a single p...

Basic Computer Information: Characteristics of Computer

Basic Computer Information: Characteristics of Computer:   The following are the characteristics of computer: • Hard Work: A computer works very hard and does not get tired. • Accurate: A compu...

Basic Computer Information: Generation of Computer

Basic Computer Information: Generation of Computer:   Generation of Computer 1. First Generation Computers (1940-1956): The first generation computers used vacuum tubes for circuits and magnet...

Basic Computer Information: History of Computer

Basic Computer Information: History of Computer: This section explains about computer, its components and memory. A computer is an electronic machine that is used for manipulating data acco...