This section contains more frequently asked Microprocessors Basics Multiple Choice Questions and Answers in the various University Level and Competitive Examinations.
1. When memory write or I/O read are active data is from the processor:
- Input
- Output
- Processor
- None of these
B. Output
2. CS stands for:
- Cable select
- Chip select
- Control select
- Cable system
B. Chip select
3. WE stands for
- Write enable
- Wrote enable
- Write envy
- None of these
A. Write enable
4. MAR stands for
- Memory address register
- Memory address recode
- Micro address register
- None of these
A. Memory address register
5. MDR stands for
- Memory data register
- Memory data recode
- Micro data register
- None of these
A. Memory data register
6. Which are the READ operation can in simple steps
- Address
- Data
- Control
- All of these
D. All of these
7. DMA stands for
- Direct memory access
- Direct memory allocation
- Data memory access
- Data memory allocation
A. Direct memory access
8. The ____ place the data from a register onto the data bus
- CPU
- ALU
- Both A and B
- None of these
A. CPU
9. The microcomputer system by using the ____device interface
- Input
- Output
- Both A and B
- None of these
C. Both A and B
10. The standard I/O is also called
- Isolated I/O
- Parallel I/O
- both a and b
- none of these
A. Isolated I/O