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09 - CISC and RISC processors

 1. What is CISC?
ciscandrisc_q1.jpg

  Component Initial Start-up Computers

  Complete Integrated Store Computers

  Complex Instruction Set Computers

  Corporate Information Static Computers

 2. Only simple instructions are built into a CISC processor.

  FALSE

  TRUE

 3. What was a key intention of CISC?

  To free up registry space

  To use more RAM

  To reduce the length of programs

  To make the processor work faster

 4. With a single instruction, a CISC processor can execute several operations.
ciscandrisc_q4.png

  FALSE

  TRUE

 5. A key feature of CISC is that '___ ' and ' ____ ' are incorporated in arithmetical instructions.

  load and store

  lock and load

  save and retain

  plus and minus

 6. What is RISC?

  Rapid Instruction Series Computers

  Random Integral Series Computers

  Retained Index Scope Computers

  Reduced Instruction Set Computers

 7. RISC aims to cut down the number of clock cycles per instruction.
ciscandrisc_q7.jpg

  TRUE

  FALSE

 8. An advantage of RISC is that instructions can be …

  Pipelined

  Inlined

  Streamlined

  Slimlined

 9. RISC processors often use general purpose rather than assigned registers. What is a benefit of this approach?

  Registers can be switched easily

  Shorter programs are required

  Less RAM is required

  More secondary storage is available

 10. RISC processors have become dominant in mobile devices such as smartphones.
ciscandrisc_q10.jpg

  FALSE

  TRUE

 11. The following is a characteristic of CISC architecture: Instruction-decoding logic will be Complex.

  TRUE

  FALSE

 12. One instruction is required to support multiple addressing modes in ….

  all CPUS

  None of the above

  CISC architecture

  RISC architecture

 13. Generally speaking, less chip space is enough for general purpose registers for the instructions that are operated directly on memory in

  None of the above

  RISC architecture

  all CPUS

  CISC architecture

 14. __________is used in portable devices due to its power efficiency

  all CPUS

  None of the above

  RISC architecture

  CISC architecture

 15. Pipelining is one of the _______________. It is performed by overlapping the execution of several instructions in a pipeline fashion

  unique features of Registers

  unique features of CISC

  unique features of RISC

  unique features of a CPU

 16. The main difference between RISC and CISC is the …

  number of instructions and its complexity

  CPU size and style

  unique power of the instructions

  size of the cache and complexity of peripheral design

 17. Generally speaking, is the following excerpt true or false?
CISC designs involve very complex architectures, including a large number of instructions and 
addressing modes, whereas RISC designs involve simplified 
instruction set and adapt it to the real requirements of user programs

  TRUE

  FALSE

 18. ______________- allows freedom of using the space on microprocessors because of its simplicity

  CISC architecture

  all CPUS

  RISC architecture

  None of the above

 19. The ease of microcoding new instructions allowed designers to make _____________ upwardly compatible

  RISC machines

  CISC machines

  All DELL machines

  All intel and apple machines

 20. The following is most likely to be a disadvantage of ….
The performance of the machine slows down due to the amount of clock time taken by different instructions will be dissimilar

  RISC machines

  All intel and apple machines

  CISC machines

  All DELL machines