Input & Output Hardware

Chapter 6

Taking Charge of Computing and Communications

Input Hardware

Keyboards Mouses and other pointing devices Source Data Entry Input Devices

Keyboards

You already know about these. Any Questions?

Mouses (Mice) Etc.

Mouse Trackball Pointing Stick (pencil eraser on laptop) Touchpad (normally laptop) Joystick & other game controllers Light pen Digitizing tablet

Source Data Entry

Scanning Devices– Bar Code Readers– Mark Recognition

OMR (Tests) MICR

– Optical Character Recognition

Fax

Source Data Entry (cont)

Imaging Systems– Scanner

Flatbed Sheetfed Handheld

Audio Input Video Input including Digital Camera

Esoteric Source Data Entry

Sensors Radio Frequency GPS Voice Recognition

Output Hardware

“Softcopy” vs. Hardcopy

Display Devices

CRT’s Flat Panel Display Display controller Cards

Characteristics of Display systems

Clarity– Resolution– Dot pitch– Refresh rate– Color Depth

Monochrome vs Color

Hardcopy Output Devices

Impact Printers– Dot-matrix– Character printers

Non-Impact printers– Laser– Inkjet– Thermal

Black & White vs. Color

Other Hard Copy Devices

Plotters Multifunction Printers COM (computer output Microfilm)

Other Output Devices

Sound VR

Combination Devices for both Input and Output

Terminal– Dumb– Intelligent– POS

Touch Screen

Cards

Magnetic stripe Smart Cards Optical Cards