standard grade computing computer studies standard grade input devices chapter 16

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Standard Grade Computing COMPUTER STUDIES Standard Grade INPUT DEVICES Chapter 16

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Standard Grade Computing

COMPUTER STUDIESStandard Grade

INPUT DEVICESChapter 16

Standard Grade Computing

MOUSEA mouse is moved over a pad letting the cursor on the screen select objects & choose from menus.

KEYBOARDBy pressing keys on the keyboard, characters are entered into the computer ready to be processed.

Foundation

Ergonomic

Standard Grade Computing

TRACKBALLBy moving the ball you can select objects and choose from menus. Good when you do not have a surface for the ball movement.

JOYSTICKExcellent for playing computer games as it allows you to easily move the cursor around the screen.

TRACKPADA flat touch sensitive area used instead of a mouse to control a pointer. It is usually found with a laptop.

Foundation

Standard Grade Computing

GRAPHICS TABLETA mouse / stylus is used to move

over a pad. The pressure is sensed & the signals are read

into the processor.

TOUCH SENSITIVE SCREEN

Foundation

A light-sensitive pen is used to select objects on a computer screen.

A screen that has a touch-sensitive transparent panel covering it. Your finger is used to point to objects on the screen.

LIGH

T P

EN

Standard Grade Computing

SCANNERText & graphics are scanned, digitised, then the image is sent to the processor.

DIGITAL STILL CAMERA

Images are stored on memory card instead of film then downloaded to

the computer for viewing and editing.

General

flatbed

Hand held

Standard Grade Computing

DIGITAL VIDEO CAMERAThis records movies. The images can be downloaded into the computer for viewing and editing.

WEBCAMLive moving images can be sent over the Internet for viewing. Often used with messenger or instead of security cameras.

MICROPHONEThis allows sound to be entered into the computer. Also often used with messenger programs over the Internet.

General

Standard Grade Computing

MULTIMEDIA

Interactive White Board

Sound CardMicrophone CREDI

T

Standard Grade Computing

And there is more….

Tune in again to see the next exciting chapter