πŸ“Š Computer Architecture
Q. The advantage of I/O mapped devices to memory mapped is ___________
  • (A) The former offers faster transfer of data
  • (B) The devices connected using I/O mapping have a bigger buffer space
  • (C) The devices have to deal with fewer address lines
  • (D) No advantage as such
πŸ’¬ Discuss
βœ… Correct Answer: (C) The devices have to deal with fewer address lines
πŸ“Š Computer Architecture
Q. The system is notified of a read or write operation by ___________
  • (A) Appending an extra bit of the address
  • (B) Enabling the read or write bits of the devices
  • (C) Raising an appropriate interrupt signal
  • (D) Sending a special signal along the BUS
πŸ’¬ Discuss
βœ… Correct Answer: (D) Sending a special signal along the BUS
πŸ“Š Computer Architecture
Q. To overcome the lag in the operating speeds of the I/O device and the processor we use ___________
  • (A) Buffer spaces
  • (B) Status flags
  • (C) Interrupt signals
  • (D) Exceptions
πŸ’¬ Discuss
βœ… Correct Answer: (B) Status flags
πŸ“Š Computer Architecture
Q. The method which offers higher speeds of I/O transfers is ___________
  • (A) Interrupts
  • (B) Memory mapping
  • (C) Program-controlled I/O
  • (D) DMA
πŸ’¬ Discuss
βœ… Correct Answer: (D) DMA
πŸ“Š Computer Architecture
Q. The instruction, Add #45, R1 does _______
  • (A) Adds the value of 45 to the address of R1 and stores 45 in that address
  • (B) Adds 45 to the value of R1 and stores it in R1
  • (C) Finds the memory location 45 and adds that content to that of R1
  • (D) None of the mentioned
πŸ’¬ Discuss
βœ… Correct Answer: (B) Adds 45 to the value of R1 and stores it in R1
πŸ“Š Computer Architecture
Q. In the case of, Zero-address instruction method the operands are stored in _____
  • (A) Registers
  • (B) Accumulators
  • (C) Push down stack
  • (D) Cache
πŸ’¬ Discuss
βœ… Correct Answer: (C) Push down stack
πŸ“Š Computer Architecture
Q. The addressing mode which makes use of in-direction pointers is ______
  • (A) Indirect addressing mode
  • (B) Index addressing mode
  • (C) Relative addressing mode
  • (D) Offset addressing mode
πŸ’¬ Discuss
βœ… Correct Answer: (A) Indirect addressing mode
πŸ“Š Computer Architecture
Q. The addressing mode/s, which uses the PC instead of a general purpose register is ______
  • (A) Indexed with offset
  • (B) Relative
  • (C) direct
  • (D) both Indexed with offset and direct
πŸ’¬ Discuss
βœ… Correct Answer: (B) Relative
πŸ“Š Computer Architecture
Q. _____ addressing mode is most suitable to change the normal sequence of execution of instructions.
  • (A) Relative
  • (B) Indirect
  • (C) Index with Offset
  • (D) Immediate
πŸ’¬ Discuss
βœ… Correct Answer: (A) Relative

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