8086 Microprocessor Set 5

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This set of 8086 Microprocessor Multiple Choice Questions & Answers (MCQs) focuses on 8086 Microprocessor Set 5

Q1 | Microprocessor is the of the computer and it perform all the computational tasks
  • main
  • heart
  • important
  • simple
Answer: heart
Q2 | The purpose of the microprocessor is to control
  • memory
  • switches
  • processing
  • tasks
Answer: memory
Q3 | The first digital electronic computer was built in the year
  • 1950
  • 1960
  • 1940
  • 1930
Answer: 1940
Q4 | In 1960's texas institute invented
  • integrated circuits
  • microprocessor
  • vacuum tubes
  • transistors
Answer: integrated circuits
Q5 | The intel 8086 microprocessor is a processor
  • 8 bit
  • 16 bit
  • 32 bit
  • 4 bit
Answer: 16 bit
Q6 | The microprocessor can read/write 16 bit data from or to
  • memory
  • i /o device
  • processor
  • register
Answer: memory
Q7 | In 8086 microprocessor , the address bus is bit wide
  • 12 bit
  • 10 bit
  • 16 bit
  • 20 bit
Answer: 20 bit
Q8 | The work of EU is
  • encoding
  • decoding
  • processing
  • calculations
Answer: decoding
Q9 | The SF is called as
  • service flag
  • sign flag
  • single flag
  • condition flag
Answer: sign flag
Q10 | The OF is called as
  • overflow flag
  • overdue flag
  • one flag
  • over flag
Answer: overflow flag
Q11 | The IF is called as
  • initial flag
  • indicate flag
  • interrupt flag
  • inter flag
Answer: interrupt flag
Q12 | The register AX is formed by grouping
  • ah & al
  • bh & bl
  • ch & cl
  • dh & dl
Answer: ah & al
Q13 | The SP is indicated by
  • single pointer
  • stack pointer
  • source pointer
  • destination pointer
Answer: stack pointer
Q14 | The BP is indicated by
  • base pointer
  • binary pointer
  • bit pointer
  • digital pointer
Answer: base pointer
Q15 | The SS is called as
  • single stack
  • stack segment
  • sequence stack .
  • random stack
Answer: stack segment
Q16 | The index register are used to hold
  • memory register
  • offset address
  • segment memory
  • offset memory
Answer: memory register
Q17 | The BIU contains FIFO register of size bytes
  • 8
  • 6
  • 4
  • 12
Answer: 6
Q18 | The BIU prefetches the instruction from memory and store them in
  • queue
  • register
  • memory
  • stack
Answer: queue
Q19 | The 1 MB byte of memory can be divided into segment
  • 1 kbyte
  • 64 kbyte
  • 33 kbyte
  • 34 kbyte
Answer: 64 kbyte
Q20 | The DS is called as
  • data segment
  • digital segment
  • divide segment
  • decode segment
Answer: data segment
Q21 | The CS register stores instruction in code segment
  • stream
  • path
  • codes
  • stream line
Answer: codes
Q22 | The IP is bits in length
  • 8 bits
  • 4 bits
  • 16 bits
  • 32 bits
Answer: 16 bits
Q23 | The push source copies a word from source to
  • stack
  • memory
  • register
  • destination
Answer: stack
Q24 | LDs copies to consecutive words from memory to register and
  • es
  • ds
  • ss
  • cs
Answer: ds
Q25 | IMUL source is a signed
  • multiplication
  • addition
  • subtraction
  • division
Answer: multiplication
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