Reading Review DEcember 23

- List five input devices and three output devices that might be attached to a PC. Describe a typical use for each:

input:

Mouse:commands and positions the cursor. it also allows for the user to select applications and basically everything on the computer.

key Bord: enters text and numeric data into the computer and projects it on the screen.

joy stick: used in gaming, the joystick controls the cursor. It is a gear shift device.

track ball: similar to a mouse, but the mouse part stays stationary while you move a ball in the center.

Touch screen: it responds to touch, your finger works as a pointer, rather than a mouse. used in PDAs and places like library and Airports.

Output:

Printer: the printer outputs information on the form of paper. its very nifty.

speakers: speakers let out sound files that are on the PC

Monitor: we SEE things from the PC by the monitor.

- Name and describe three special-purpose input devices people commonly use in public places, such as stores, banks, and libraries.

-touch screens: used in libraries airports as directories and in stores for self check out

-Bar code readers: used in stores to scan prices, also in libraries to scare book codes

scanners: used in banks to fax or copy important documents

- Many people find that the mouse is impractical for use as a pointing device on a laptop computer. Describe at least three alternatives that are more appropriate.

-touch pad: these are Usually attached to a Laptop anyway. its more practical for a devise on the go.

touch screen: this will work nicely you can just touch the application that you want on the computer.

graphic tablet: the computer will then be like a notebook which is more practical than a mouse.