8085 Microprocessor Set 1

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This set of 8085 Microprocessor Multiple Choice Questions & Answers (MCQs) focuses on 8085 Microprocessor Set 1

Q1 | Which is the microprocessor comprises:
  • register section
  • one or more alu
  • control unit
  • all of these
Answer: all of these
Q2 | What is the store by register?
  • data
  • operands
  • memory
  • none of these
Answer: data
Q3 | Accumulator based microprocessor example are:
  • intel 8085
  • motorola 6809
  • a and b
  • none of these
Answer: a and b
Q4 | A set of register which contain are:
  • data
  • memory addresses
  • result
  • all of these
Answer: all of these
Q5 | There are primarily two types of register:
  • general purpose register
  • dedicated register
  • a and b
  • none of these
Answer: a and b
Q6 | Name of typical dedicated register is:
  • pc
  • ir
  • sp
  • all of these
Answer: all of these
Q7 | Which is used to store critical pieces of data during subroutines and interrupts:
  • stack
  • queue
  • accumulator
  • data register
Answer: stack
Q8 | The data in the stack is called:
  • pushing data
  • pushed
  • pulling
  • none of these
Answer: pushing data
Q9 | The external system bus architecture is created using from ______ architecture:
  • pascal
  • dennis ritchie
  • charles babbage
  • von neumann
Answer: von neumann
Q10 | The processor 80386/80486 and the Pentium processor uses _____ bits address bus:
  • 16
  • 32
  • 36
  • 64
Answer: 32
Q11 | Which is not the control bus signal:
  • read
  • write
  • reset
  • none of these
Answer: reset
Q12 | PROM stands for:
  • programmable read-only memory
  • programmable read write memory
  • programmer read and write memory
  • none of these
Answer: programmable read-only memory
Q13 | EPROM stands for:
  • erasable programmable read-only memory
  • ectrically programmable read write memory
  • electrically programmable read-only memory
  • none of these
Answer: erasable programmable read-only memory
Q14 | Each memory location has:
  • address
  • contents
  • both a and b
  • none of these
Answer: both a and b
Q15 | Which is the type of microcomputer memory:
  • processor memory
  • primary memory
  • secondary memory
  • all of these
Answer: all of these
Q16 | Secondary memory can store____:
  • program store code
  • compiler
  • operating system
  • all of these
Answer: all of these
Q17 | Secondary memory is also called____:
  • auxiliary
  • backup store
  • both a and b
  • none of these
Answer: both a and b
Q18 | The RAM which is created using bipolar transistors is called:
  • dynamic ram
  • static ram
  • permanent ram
  • ddr ram
Answer: static ram
Q19 | Which type of RAM needs regular referred:
  • dynamic ram
  • static ram
  • permanent ram
  • sd ram
Answer: dynamic ram
Q20 | Which RAM is created using MOS transistors:
  • dynamic ram
  • static ram
  • permanent ram
  • sd ram
Answer: dynamic ram
Q21 | The CPU sends out a ____ signal to indicate that valid data is available on the data bus:
  • read
  • write
  • both a and b
  • none of these
Answer: write
Q22 | The CPU removes the ___ signal to complete the memory write operation:
  • read
  • write
  • both a and b
  • none of these
Answer: read
Q23 | BIU STAND FOR:
  • bus interface unit
  • bess interface unit
  • a and b
  • none of these
Answer: bus interface unit
Q24 | EU STAND FOR:
  • execution unit
  • execute unit
  • exchange unit
  • none of these
Answer: execution unit
Q25 | Eight of the register are known as:
  • general- purpose register
  • pointer or index registers
  • segment registers
  • other register
Answer: general- purpose register
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