that they perform various mathematical and logical operations, and then give the results (information). Computer Systems - Input, Process, Output corb201, computer technology power point oacore2, linkedIn Corporation 2018, share Clipboard Link Public clipboards featuring this slide No public clipboards found for this slide Select another clipboard Looks like youve clipped this slide to already. In addition to these keys, IBM keyboards contain the following keys: Page Up, Page Down, Home, End, Insert, Pause, Num Lock, Scroll Lock, Break, Caps Lock, Print Screen. I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described. Fourth generation computers.
A computer system is a combination of four elements: Hardware Software Procedures Data/information Software are the programmes that tell the hardware how to perform a task. Computers started in use for Data Communication. The basic job of the computer is the processing of information. These scanners are good for scanning small pictures and photos, but they are difficult for scanning of a large pages. Like televisions, screen sizes are measured in inches from one corner of the screen to the opposite comer diagonally. However, it was too big and was not for general public. In addition, CD-ROM players are capable of playing audio CDs.
Ink-jet printer sprays ink at a sheet of paper. It could not store data, however. Computer presentation, upcoming SlideShare, loading in 5, like this presentation? Lot of electricity failure occurred. A scanner works by digitizing an image. Hard disk drives (HDDs) for PCs generally have seek times of about 12 milliseconds or less. Slide 8, charles babbage Difference Engine.1822 huge calculator, never finished Analytical Engine creative nonfiction personal essays 1833 could store numbers calculating mill used punched metal cards for instructions powered by steam! Floppies have a large storage capacity from 400K.4MB of data. Created at the University of Pennsylvania eniac weighed 30 tons contained 18,000 vacuum tubes Cost a paltry 487,000. 7 1910: Borroughs created an addition machine and called it Adding Machine.