Electronics and Communication Engineering:: Microprocessors

IC 74181 has two select lines.

A. True
B. False

In 8086 the flag which enables or disables external interrupts is

A. IF
B. DF
C TF
D. CF

An instruction using immediate addressing mode in 8085 is

A. 2 bytes long
B. 3 bytes long
C 2 or 3 bytes long
D. 1 or 2 or 3 bytes long

Which of the following alphanumeric characters is not allowed in Basic?

A. capital letters A to Z
B. lower case letters a to z
C digits 0 to 9
D. special characters +, -, *, / etc

Which characteristic of a memory chip is called ac characteristics?

A. Power consumption
B. Bus loading
C Timing characteristic
D. All of the above

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