HISTORY OF COMPUTER’SBy: Teaira Knighton

Hard-Ware & Soft-Ware Computer software, or just software, is the collection of

computer programs and related data that provide the instructions telling a computer what to do. The term was coined to contrast to the old term hardware (meaning physical devices). In contrast to hardware, software is intangible, meaning it "cannot be touched".[1] Software is also sometimes used in a more narrow sense, meaning application software only. Sometimes the term includes data that has not traditionally been associated with computers, such as film, tapes and records.[2]

Hard-Drive hard disk drive[2] (hard disk,[3] hard drive,[4]

HDD) is a non-volatile storage device for digital data. It features one or more rotating rigid platters on a motor-driven spindle within a metal case. Data is encoded magnetically by read/write heads that float on a cushion of air above the platters.

Monitor A display screen used to provide visual output from a computer, cable box, video

camera, VCR or other video generating device. Computer monitors use CRT and LCD technology, while TV monitors use CRT, LCD and plasma technologies. See analog monitor, digital monitor and flat panel display.

(2) Software that monitors the progress of activities within a computer system. See computer monitoring.

(3) A device that gathers performance statistics of a running system via direct attachment to the CPU's circuit boards. See also network analyzer.

(4) Software that provides utility and control functions such as setting communications parameters. It resides in a ROM or flash memory chip and contains startup and diagnostic routines.

System Unit The primary computer equipment.

Housed in a desktop or floor-standing cabinet, it contains such components as the motherboard, CPU, RAM and ROM chips, hard and floppy disks and several input/output ports.

Floppy-DiscA reusable magnetic storage medium introduced by IBM in 1971. It was called a floppy because the first varieties were housed in bendable jackets. Woefully undersized for today's use, it is no longer standard equipment on computers. However, until the early 1990s, the floppy was the primary method for distributing software and was widely used for backup. By the mid-1990s, it had mostly given way to the CD-ROM.

Input & Output devices A computer is only useful when it is able to communicate with

the external environment. When you work with the computer you feed your data and instructions through some devices to the computer. These devices are called Input devices. Similarly the computer after processing, gives output through other devices called output devices.

Common input and output devices are: Speakers, Mouse, Scanner, Printer,Joystick, CD-ROM, Keyboard, Microphone, DVD, Floppy drive, Hard drive, Magnetic tape, and Monitor. Some devices are capable of both input and output.

The End!!! Thanks’ for viewing my

presentation I hope you enjoyed it!

Love, Teaira Knighton