61.
Which of the following file organizations is most efficient for a file with a high degree of file activity?

62.
What is the name of the reading device which mades use of photosensors and laser technologies to interpret printed, typed or even hand-written data directly from the source documents?

63.
A(n) ____ device is any device that provides information which is sent to the CPU.

64.
The range of frequencies available for data transmission is known as

65.
Full adder has

66.
Which major development led to the production of microcomputers?

67.
The first computer made available for commercial use was

68.
In which mode, each user has a local input/output device.

69.
Sometime data are gathered over a period of time and collected into a group before entering them into a computer for processing. What type of processing is it called?

70.
Which of the following is considered a direct-entry input device?