Microprocessor
& Microcontroller Demo Test Series-1
Q: The size of address bus of a microprocessor is 20 bits & the size of data bus is 8 bits.
What are the maximum number of RAM chips of size 64K*4 that can be connected to this microprocessor?
Q: Number of address lines required to address 8K byte of memory is ___.
- A: 0017H
- B: 0038H
- C: 0027H
- D: 0700H
Q: Stack pointer in a microprocessor is a register containing ___.
- A: Address of the next operand
- B: The current size of the stack
- C: The address for storing the result
- D: The address of the top of th stack
Q: .In a microprocessor with 16 address & 12 dta lines, the maximum number of opcodes is ___.
- A: 2^6
- B: 2^8
- C: 2^12
- D: 2^16
Q: An 8bit microcontroller hs n external RAM with the mmory map from 8000H to 9FFFH. The number of bytes this RAM can store is ___.
- A: 8193
- B: 8191
- C: 8192
- D: 8000
Q: A 8085 microprocwssor program uses all availble jump instructions, each only once. For this program, the total memory(in bytes)
occupied by the jump instructions is
Q: The suitable program counter for 8086 microprocessors is ______.
- A: 8253 chip
- B: 8359 A chip
- C: 8254 chip
- D: 8251 chip
Q: Operations controlled by 2 or more control units are referred as ____.
- A: Micro-operations
- B: Multi-operations
- C: Bi control operations
- D: Macro-operations
Q: In the 8086 instruction ADD DX, [BX], the addressing mode of source operand is_____.
- A: Register
- B: Register indirect
- C: Based indexed
- D: Direct
Q: The first microprocessor to include virtual memory in the INTEL microprocssor family is ___.
- A: 80486
- B: 80386
- C: 80286
- D: Pentium
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