1. ____ allows screen positions to be selected with the touch of a finger.
a) Touch panels
b) Image scanner
c) Light pen
d) Mouse
Answer
Answer: a [Reason:] None.
2. What is the disadvantage of the light pen?
a) It’s shape
b) They cannot detect positions
c) Accurate reading
d) Cannot detect positions within black areas
Answer
Answer: d [Reason:] light pen requires special implementations and sometimes gives false reading due to background lighting in a room.
3. ________ is used in graphics workstation as input devices to accept voice commands.
a) Touch panels
b) Speech recognizers
c) Only a
d) All of the mentioned
Answer
Answer: b [Reason:] Through speech recognizers user can give voice commands.
4. What voice the use of voice system?
a) To initiate graphics operation
b) To enter data
c) Neither a nor b
d) Both a and b
Answer
Answer: d [Reason:] The voice system input can be used to initiate graphics operations or to enter data.
5. When a voice command is given, the system searches the _______for a frequency-pattern match.
a) Memory
b) Input data
c) Dictionary
d) Hard disk
Answer
Answer: c [Reason:] System searches the dictionary for frequency pattern matching.
6. The device which is designed to minimize the background sound is
a) Microphone
b) Digitizers
c) Data glove
d) Joy stick
Answer
Answer: a [Reason:] Microphone is designed to minimize the background sound.
7. The quality of a picture obtained from a device depends on
a) Dot size
b) Number of dots per inch
c) Number of lines per inch
d) All of the mentioned
Answer
Answer: d [Reason:] quality depends on these attributes.
8. Which of the following device is not the input device?
a) Trackball and space ball
b) Data glove
c) Only d
d) Impact printers
Answer
Answer: c [Reason:] printer is an output device.
9. Which device contains thumbwheel, trackball and a standard mouse ball?
a) Z mouse
b) Joystick
c) Mouse
d) Trackball
Answer
Answer: a [Reason:] These 3 buttons are the Z mouse features.
10. Virtual reality, CAD, and animations are the application of
a) Z mouse
b) Digitizers
c) Data tablets
d) Image scanners
Answer
Answer: a [Reason:] Application of Z mouse includes virtual reality, CAD, and animations.
