Q. Consider a uniprocessor system where new processes arrive at an average of five processes per minute and each process needs an average of 6 seconds of service time. What will be the CPU utilization ?

View solution

Q. The advantage of _______ is that it can reference memory without paying the price of having a full memory address in the instruction.

View solution

Q. The output of a sequential circuit depends on

View solution

Q. Which of the following flip-flops is free from race condition ?

View solution

Q. Pipelining improves performance by:

View solution

Q. A multiplexer is a logic circuit that

View solution

Q. 8-bit 1’s complement form of –77.25 is

View solution

Q. ECL is the fastest of all logic families. High Speed in ECL is possible because transistors are used in difference amplifier configuration, in which they are never driven into ...............

View solution

Q. A binary 3-bit down counter uses J-K flip-flops, FFi with inputs Ji, Ki and outputs Qi, i=0,1,2 respectively. The minimized expression for the input from following, is

I. J0=K0=0
II. J0=K0=1
III. J1=K1=Q0
IV. J1=K1=Q'0
V. J2=K2=Q1Q0
Vl. J2=K2=Q'1Q'0

View solution

Q. Which of the following is an interrupt according to temporal relationship with system clock?

View solution

Q. Match the following:

Addressing Mode      Location of operand
a. Implied                      i. Registers which are in CPU
b. Immediate                 ii. Register specifies the address
of the operand
c. Register                     iii. Specified in the register
d. Register Indirect      iv. Specified implicitly in the
definition of instruction

Codes:
     a   b   c  d

View solution

Q. In 8085 microprocessor, the digit 5 indicates that the microprocessor needs

View solution

Q. In 8085, which of the following performs: load register pair immediate operation?

View solution

Q. The content of the accumulator after the execution of the following 8085 assembly language program, is

MVI A, 35H
MOV B, A
STC
CMC
RAR
XRA B

View solution

Q. A ripple counter is a (n):

View solution

Q. 8085 microprocessor has ............... bit ALU.

View solution

Q. The register that stores the bits required to mask the interrupts is ................

View solution

Q. Which of the following in 8085 microprocessor performs

HL = HL + HL ?

View solution

Q. In ............... addressing mode, the operands are stored in the memory. The address of the corresponding memory location is given in a register which is specified in the instruction.

View solution

Q. Which of the following is a sequential circuit?

View solution