standard grade computing computer studies standard grade input devices chapter 16
TRANSCRIPT
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
Concept
Keyboard
Specialisedinput devices for Disabled users
Virtual Reality
VR Glove
VR Body Suit
Wii handset
Handwriting recognition
CREDIT