Page 470 - General Knowledge

GENERAL KNOWLEDGE 2019

B. To click and select items
C. To shutdown
D. To scroll

106. Which of the following devices is used for reading bar coded data ?
A. Graphic Tablet
B. Numeric Pad
C. Bar Code Reader
D. Magnetic Stripe Reader

107. Which type of failure occurs because of input device that does not read data correctly ?
A. input error
B. output error
C. read error
D. write error

108. Which of the following devices provide a means of communication between a computer
and outer world?
A. Input/Output
B. Storage
C. Compact
D. Drivers

109. What is the full form of GUI ?
A. Graphical User Instruction
B. Ground User Interface
C. General User Instruction
D. Graphical User Interface

110. Which of the following devices is used for video games, flight simulators, training
simulators and for controlling industrial robots?
A. Mouse
B. Light pen
C. Joystick
D. Keyboards

111. Which are the input devices that enable direct data entry into a computer system from
source documents?
A. Data Scanning devices
B. Data retrieving devices
C. Data acquiring devices
D. System Access devices

112. Which of the followings clearly define the Trackball?
A. It is a two-dimensional positioning device.
B. It is a three- dimensional positioning device.
C. It is a pointing device.
D. None of the Above

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