Computer Architecture Set 23

Computer Science Engineering (CSE)

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This set of Computer Architecture Multiple Choice Questions & Answers (MCQs) focuses on Computer Architecture Set 23

Q1 |                   signal is used to show complete of memory operation.
  • mfc
  • wmfc
  • cfc
  • none of the mentioned
Answer: mfc
Explaination:
mfc stands for memory function complete.
Q2 |                     signal enables the processor to wait for the memory operation to complete.
  • mfc
  • tlb
  • wmfc
  • alb
Answer: wmfc
Explaination:
this signal stands for wait for memory function complete.
Q3 | The small extremely fast, RAM’s all called as                   
  • cache
  • heaps
  • accumulators
  • stacks
Answer: heaps
Explaination:
cache’s are extremely essential in single bus organisation to achieve fast operation.
Q4 | To extend the connectivity of the processor bus we use               
  • pci bus
  • scsi bus
  • controllers
  • multiple bus
Answer: pci bus
Explaination:
the pci bus basically is used to connect to memory devices.
Q5 | The bus used to connect the monitor to the CPU is                           
  • pci bus
  • scsi bus
  • memory bus
  • rambus
Answer: scsi bus
Explaination:
the scsi (small component system interconnect) is used to connect to display devices.
Q6 | ANSI stands for                             
  • american national standards institute
  • american national standard interface
  • american network standard interfacing
  • american network security interrupt
Answer: american national standards institute
Explaination:
it is one of the standards of developing a bus.
Q7 | The general purpose registers are combined into a block called as               
  • register bank
  • register case
  • register file
  • none of the mentioned
Answer: register file
Explaination:
to make the access of the
Q8 | In               technology, the implementation of the register file is by using an array of memory locations.
  • vlsi
  • ansi
  • isa
  • asci
Answer: vlsi
Explaination:
by doing so the access of the registers can be made faster.
Q9 | In a three BUS architecture, how many input and output ports are there?
  • 2 output and 2 input
  • 1 output and 2 input
  • 2 output and 1 input
  • 1 output and 1 input
Answer: 2 output and 1 input
Explaination:
that is enabling reading from two locations and writing into one.
Q10 | CISC stands for                     
  • complete instruction sequential compilation
  • computer integrated sequential compiler
  • complex instruction set computer
  • complex instruction sequential compilation
Answer: complex instruction set computer
Explaination:
the cisc machines are well adept at handling multiple bus organisation.
Q11 | There exists a separate block consisting of various units to decode an instruction.
  • true
  • false
Answer: true
Explaination:
this block is used to decode the instruction and place it in the ir.
Q12 | There exists a separate block to increment the PC in multiple BUS organisation.
  • true
  • false
Answer: true
Explaination:
none.
Q13 |                   are the different type/s of generating control signals.
  • micro-programmed
  • hardwired
  • micro-instruction
  • both micro-programmed and hardwired
Answer: both micro-programmed and hardwired
Explaination:
the above is used to generate control signals in different types of system architectures.
Q14 | The type of control signal is generated based on                   
  • contents of the step counter
  • contents of ir
  • contents of condition flags
  • all of the mentioned
Answer: all of the mentioned
Explaination:
based on the information above the type of control signal is decided.
Q15 | What does the hardwired control generator consist of?
  • decoder/encoder
  • condition codes
  • control step counter
  • all of the mentioned
Answer: all of the mentioned
Explaination:
the cu uses the above blocks and ir to produce the necessary signal.
Q16 | What does the end instruction do?
  • it ends the generation of a signal
  • it ends the complete generation process
  • it starts a new instruction fetch cycle and resets the counter
  • it is used to shift the control to the processor
Answer: it starts a new instruction fetch cycle and resets the counter
Explaination:
it is basically used to start the generation of a new signal.
Q17 | BR…
  • true
  • false
Answer: true
Explaination:
the signal is generated using the logic of the formula above.
Q18 | The name hardwired came because the sequence of operations carried out is determined by the wiring.
  • true
  • false
Answer: true
Explaination:
in other words hardwired is another name for hardware control signal generator.
Q19 | The benefit of using this approach is
  • it is cost effective
  • it is highly efficient
  • it is very reliable
  • it increases the speed of operation
Answer: it increases the speed of operation
Explaination:
none.
Q20 | The disadvantage/s of the hardwired approach is                   
  • it is less flexible
  • it cannot be used for complex instructions
  • it is costly
  • less flexible & cannot be used for complex instructions
Answer: less flexible & cannot be used for complex instructions
Explaination:
the more complex the instruction set less applicable to a hardwired approach.
Q21 | In micro-programmed approach, the signals are generated by               
  • machine instructions
  • system programs
  • utility tools
  • none of the mentioned
Answer: machine instructions
Explaination:
the machine instructions generate the signals.
Q22 | A word whose individual bits represent a control signal is               
  • command word
  • control word
  • co-ordination word
  • generation word
Answer: control word
Explaination:
the control word is used to get the different types of control signals required.
Q23 | A sequence of control words corresponding to a control sequence is called                 
  • micro routine
  • micro function
  • micro procedure
  • none of the mentioned
Answer: micro routine
Explaination:
the micro routines are used to perform a particular task.
Q24 | Individual control words of the micro routine are called as               
  • micro task
  • micro operation
  • micro instruction
  • micro command
Answer: micro instruction
Explaination:
the each instruction which put together performs the task.
Q25 | The special memory used to store the micro routines of a computer is
  • control table
  • control store
  • control mart
  • control shop
Answer: control store
Explaination:
the control store is used as a reference to get the required control routine.
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