Computer Organization Architecture - Cache and main memory

1:   The memory address range to which RAM will respond
A. 0000 H to 1 FFF H
B. 0000 H to 5FFF H
C. 4000 H to 5FFF H
D. 3000 H to FFFF H

Option: C

Explanation :

2:   How many addresses are required for 25 x 40 video RAM ?
A. 1020
B. 1920
C. 1000
D. 1500

Option: C

Explanation :

3:   Which of the following is not a form of memory ?
A. Instruction cache
B. Instruction register
C. Instruction opcode
D. Both (a) and (b)

Option: C

Explanation :


Which memory is difficult to interface with processor ?


Static memory


Dynamic memory




None of these


Option: B

Explanation :

Dynamic memory refreshes periodically so due to refreshment it is difficult to interface it. So answer is 'B'.

5:   Desirable characteristic(s) of a memory system is(are)
A. Speed and reliability
B. Low power consumption
C. Durability and compactness
D. All of these

Option: D

Explanation :

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Syllabus included in this section is-

  • Machine instructions and addressing modes
  • ALU and data-path
  • CPU control design
  • Memory interface
  • I/O interface (Interrupt and DMA mode)
  • Instruction pipelining
  • Cache and main memory
  • Secondary storage
  • Hardwired and Microprogrammed processor design
  • Instruction formats 
  • Addressing modes
  •  Memory types and organisation
  • Interfacing peripheral devices
  • Interrupts
  • Microprocessor architecture
  • Instruction set and Programming (8085, P-III/P-IV)
  • Microprocessor applications.

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