| A | B |
|---|
| Keyboard | the most popular and common way of inputting data into the computer |
| Joystick | uses the movement of a vertical stem to direct the pointer/cursor |
| Mouse | is a small input device that fits in the palm of your hand and when moved across a flat surface it contrls the movement of the pointer/cursor |
| Trackball | is a pointing device like a mouse only with the ball on the top of the device |
| Graphics Tablet | a flat drawing surface, connected to the computer, on which the user can draw graphic figures |
| Touch Display Screen | allows users to touch areas of the screen to enter data |
| Speech Recognition Device | enables the computer to recognize and respond to voice commands |
| Scanner | device that can read special codes, printed characters, symbols, and graphic images for input to the computer |
| Bar Code Scanner | reads bar or lines printed on a product |
| Universal Product Code | the most familiar bar code used |
| Optical Mark Reader | device often used to process questionnaires or test answer sheets |
| Digitizer Scanner | used to convert shapes, pictures, and graphic images into numbers for storage |
| Magnetic Scanner | designed to read encoded information on the back of credit cards |
| Magnetic Ink Character Recognition Reader | used in the banking industry to process checks, deposits, and withdrawals |
| Terminal | inputs or outputs data and consists of a keyboard and a display screen |
| Dumb Terminal | Doesn't have any memory and is totally dependent upon stored programs |
| Smart Terminal | has memory and can be programmed to perform tasks |
| Local Terminal | device located near the computer and directly cabled to the CPU |
| Remote Terminal | device located at some different location connected by telephone and cable |
| Central Processing Unit | hardware device that stores data and programs, executes program instructions, and performs logic operations |
| Random Access Memory | memory that loses the data or instructions that it stores when the power is turned off |
| Read-Only Memory | memory that does not lose its data or instructions when the power is turned off |
| Processor | the chip that receives and carries out specific instructions and is located in the CPU |
| Video Display Screen | most commonly used output device |
| Liquid Crystal Display | screen composed of an electrokinetic fluid positioned between two layers of glass |
| Printer | places output on paper |
| Ink Jet Printer | produces charactersby spraying tiny droplets of ink onto paper in a desired pattern |
| Laser Printer | uses ink particles called toner to produce images similar to the way a copying machine functions |
| Robot | device under the control of a computer that produces output in a form of motion which in turn performs work |
| Sequential Access Device | records and reads back information in a one after another sequence |
| Random Access Device | retrieves data in any sequence desired |
| CD-ROM | a read-only random access device capable of storing large amounts of data |
