This section contains more frequently asked Microprocessors 8085 Fundamental Multiple Choice Questions and Answers in the various University Level and Competitive Examinations.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. Direction flag is used with
- String instructions.
- Stack instructions
- Arithmetic instructions
- Branch instructions
A. String instructions.
2. Ready pin of a microprocessor is used
- to indicate that the microprocessor is ready to receive inputs
- to indicate that the microprocessor is ready to receive outputs
- to introduce wait states
- to provide direct memory access
C. to introduce wait states
3. These are two ways in which a microprocessor can come out of Halt state.
- When hold line is a logical 1
- When interrupt occurs and the interrupt system has been enabled
- When both (A) and (B) are true
- When either (A) or (B) are true
A. When hold line is a logical 1
4. In the instruction FADD, F stands for
- Far
- Floppy
- Floating
- File
C. Floating
5. SD RAM refers to
- Synchronous DRAM
- Static DRAM
- Semi DRAM
- Second DRAM
A. Synchronous DRAM
6. In case of DVD, the speed is referred in terms of n X (for example 32 X). Here, X refers to
- 150 KB/s
- 300 KB/s
- 1.38 MB/s
- 2.4 MB/s
C. 1.38 MB/s
7. Itanium processor of Intel is a
- 32 bit microprocessor.
- 64 bit microprocessor.
- 128 bit microprocessor.
- 256 bit microprocessor
B. 64 bit microprocessor.
8. LOCK prefix is used most often
- during normal execution.
- during DMA accesses
- during interrupt servicing
- during memory accesses
C. during interrupt servicing
9. The Pentium microprocessor has______execution units.
- 1
- 2
- 3
- 4
C. 3
10. EPROM is generally erased by using
- Ultraviolet rays
- infrared rays
- 12 V electrical pulse
- 24 V electrical pulse
A. Ultraviolet rays
