Computer Awareness
Memory Memory is the electronic holding place for the instructions and data a computer needs to reach quickly. It’s where information is stored for immediate use. Memory is one of the basic functions of a computer, because without it, a computer would not be able to function properly. Memory is also used by a computer’s […]
Computer – Output Devices Following are some of the important output devices used in a computer. Monitors Graphic Plotter Printer Monitors Monitors, commonly called as Visual Display Unit (VDU), are the main output device of a computer. It forms images from tiny dots, called pixels that are arranged in a rectangular form. The sharpness of […]
important input devices which are used in a computer − Keyboard Mouse Joy Stick Light pen Track Ball Scanner Graphic Tablet Microphone Magnetic Ink Card Reader(MICR) Optical Character Reader(OCR) Bar Code Reader Optical Mark Reader(OMR) Keyboard Keyboard is the most common and very popular input device which helps to input data to the computer. The […]
Computer Vocabulary anti-virus software – a program that finds and removes viruses from a computer app – a self-contained program or piece of software; an application, especially when downloadable to a mobile device application – a self-contained program or piece of software backup – a copy of files from a computer’s hard disk, usually made on some external medium such as CD-ROM or flash drive. A backup is made in case […]
Generations of computer 1st generation:- 1946-1959:-The first generation of electronic computer started with the use of Vaccum Tubes. ENIAC (electronical numerical integrator and calculator) designed by John Machlly and john Eckert, was the world first generation purpose digital computer. It was very huge machine occupying 15000 sq ft floor space consuming 140 kw of power […]
Introduction to Computers Computer full form:- C-Common O-Operating M–Machine P-particularly U–Used for T-Technological and E- Educational R– Research. Definition:- computer is an electronic device which takes data process it according to given instruction and gives information, moreover it can store data instruction and information in memory, reproduce them when it needed. History of computers 2500 […]