Electronics and Communication Engineering:: Microprocessors

Which of the following is not a valid variable name in C?

A. p o, t
B. p o t
C po_t
D. p_ot

Which of the following can not be used as a variable name in C?

A. else
B. coal
C ram
D. vendy

Assertion (A): Microprocessor 8085 has on-chip oscillator with inbuilt crystal. Reason (R): For frequency stability crystal oscillator is preferred.

A. Both A and R are correct and R is correct explanation of A
B. Both A and R are correct but R is not correct explanation of A
C A is correct R is wrong
D. A is wrong R is correct

During processing the instructions, data, intermediate results and final results in a computer are held in

C Primary memory
D. Secondary memory

The size of cache memory in most microcomputers is about

A. a few bytes
B. a few kilobytes
C a few megabytes
D. a few gigabytes

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