FUNDAMENTALS OF COMPUTER

COMPUTER HARDWARE COMPONENTS FUNCTIONS

COMPUTER OUTPUT DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which device can project an image on the screen, and allow it to be annotated, changed and eventually saved?
A
An interactive whiteboard
B
A touchscreen
C
A projector
D
None of the above
Explanation: 

Detailed explanation-1: -A smartboard is a large flat panel display that allows users to interact with it by writing on the screen with a pen or using the wireless remote control. The advantage of this type of display is that the content can be easily changed, allowing for almost unlimited customization options.

Detailed explanation-2: -An interactive projector comprises two parts; a whiteboard and projector which features a lens to project images. The projector is usually mounted to the ceiling or to the wall above the whiteboard and is the source of the content being displayed. The whiteboard acts as a plain screen to display the projected content.

Detailed explanation-3: -An interactive whiteboard, also known as a smartboard, is an interactive display in the format of a whiteboard that reacts to user input either directly or through other devices.

Detailed explanation-4: -Examples of commercially available IWBs include SMART Boards, MimioBoards, Polyvision IWBs, Epson’s BrightLink Pro, and the Promethean IWB. Various types of software and accessories are available for different IWBs.

Detailed explanation-5: -An interactive whiteboard is an instructional tool that allows computer images to be displayed onto a board using a digital projector. The instructor can then manipulate the elements on the board by using his finger as a mouse, directly on the screen.

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