This section contains more frequently asked Microprocessors Basics MCQs in the various University Level and Competitive Examinations.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. The external device is connected to a pin called the ______ pin on the processor chip
- Interrupt
- Transfer
- Both
- None of these
A. Interrupt
2. Which interrupt has the highest priority?
- INTR
- TRAP
- RST6.5
- none of these
B. TRAP
3. In 8085 name the 16 bit registers?
- Stack pointer
- Program counter
- a & b
- none of these
C. a & b
4. What are level Triggering interrupts?
- INTR&TRAP
- RST6.5&RST5.5
- RST7.5&RST6.5
- none of these
B. RST6.5&RST5.5
5. Which stack is used in 8085?
- FIFO
- LIFO
- FILO
- none of these
B. LIFO
6. What is SIM?
- Select Interrupt Mask
- Sorting Interrupt Mask
- Set Interrupt Mask.
- none of these
C. Set Interrupt Mask.
7. RIM is used to check whether, ______
- The write operation is done or not
- The interrupt is Masked or not
- a & b
- none of these
B. The interrupt is Masked or not
8. In 8086, Example for Non maskable interrupts are
- Trap
- RST6.5
- INTR
- none of these
A. Trap
9. In 8086 microprocessor the following has the highest priority among all type interrupts.
- NMI
- DIV 0
- TYPE 255
- OVER FLOW
A. NMI
10. BIU STAND FOR:
- Bus interface unit
- Bess interface unit
- A and B
- None of these
A. Bus interface unit
