81.
A connection between two end points, either physical or logical, over which data may travel in both directions simultaneously is called _____

82.
Which is part of a computer system, enables human operators to communicate with the computer.

83.
Who invented the microprocessor?

84.
Sending data from one place to another, by physical or electronic means is

85.
A method for representing digital data analog signals by changing the phase of the analog carrier to represent the digital information is known as

86.
A device that stores one item of information is

87.
MODULA is a

88.
A register in which of the following that holds the current instruction while it is being executed is called instruction register.

89.
The OCR stand for?

90.
Which of the following is a data communication link that connects more than two stations, nodes etc