Wednesday, December 23, 2009

Reading Review: 12/23

Input:-

1.) The Keyboard: most familiar input devices designed to make it easy to enter data and commands into the computer

2.) The Mouse: To move a pointer around the screen and point to objects

3.) Scanners: Creates a digital image of the page that it can store in memory

4.) touchpad: The user moves the pointer by dragging a finger across the pad.

5.) touch screen: Responds when the user points to or touches different screen regions.

Output:-

1.) Monitor- serves as a one-way window between the computer user and the machine

2.) Printer- produces a hard copy on paper of any information that can be displayed on the computer's screen.

3.) Fax machines- transmits info. stored on paper

2.) Touch screens are sometimes used in information kiosks.

Bar code readers are used to scan bar codes on products.

Magnetic strip readers are used to read information encoded on credit cards.

3.) The trackball, the touchpad, and the trackpoint are all devices that provide suitable alternatives to the mouse on laptop computers.

No comments:

Post a Comment