CHAPTER 5 : UNDERSTANDING INPUT

PRESENTED BY :

Program computer : perform & how to perform a task.

Respond : command user issues.

User respons : an instruction to reply a question displayed by a program.

•Pointing device that fits under the palm of your

hand comfortably.

LASER

OPTICAL

WIRELESS / CORDLESS

AIR

oTouch screen :

oUsers interact :

of the

.

oCommon in devices :

Enables users

Contain &

•Pen input

•Stylus : small metal /

plastic device

•Digital pen : slightly

, more

functionality than stylus,

&

•Input device

•Game controllers :

Biometrics authenticates aperson’s identity byverifying a personalcharacteristic

The ability to recognizepeople by their facialcharacteristics. Thecharacteristics of a person'sface into a multidimensionalface space.

Fingerprint reader

Hand geometry system

Face recognitionsystem