The microprocessor is an integrated circuit that has all the functions of a central processing unit of a computer. In microprocessors, the data processing logic and control are included on a single integrated circuit or a small number of ICs. The microprocessor comprises of the arithmetic, logic, and control circuitry that are required to perform the functions of a computer’s central processing unit. Given below are top 10 Multiple choice questions on Microprocessors.
Contents
- 1 The first general-purpose, programmable electronic computer system was named
- 2 The first truly successful and extensive programming language for business applications was
- 3 The world’s first microprocessor was
- 4 The 4-bit-wide memory location is often called
- 5 The vector address of INTR is
- 6 The interrupt that is only edge sensitive
- 7 S0 and S1 pins are used for
- 8 Which of the below mentioned lists the interrupt in decreasing order of priority
- 9 The single instruction that is used to clear the lower nibble of accumulator in 8085 language assembly is
- 10 If the content of register C is 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be
The first general-purpose, programmable electronic computer system was named
The first general-purpose, programmable electronic computer system was named
- ENIAC
- PCNIAC
- XNIAC
- ZNIAC
Correct answer: 1. ENIAC
Explanation: ENIAC was the first general-purpose, programmable electronic computer system that was developed in 1946 at the University of Pennsylvania. The abbreviation ENIAC stands for Electronic Numerical Integrator and Calculator. ENIAC contained around 17,000 vacuum tubes and over 500 miles of wires. It weighed over 30 tons and was capable of performing about 100,000 operations per second.
The first truly successful and extensive programming language for business applications was
The first truly successful and extensive programming language for business applications was
- ALGOL
- BASIC
- COBOL
- PASCAL
Correct answer: 3. COBOL
The world’s first microprocessor was
The world’s first microprocessor was
- Intel 1000
- Intel 4004
- Intel 8086
- Intel 8088
Correct answer: 2. Intel 4004
The 4-bit-wide memory location is often called
The 4-bit-wide memory location is often called
- Bibble
- Byte
- Megabit
- Nibble
Correct answer: 4. Nibble
The vector address of INTR is
The vector address of INTR is
- 0024H
- 0034H
- 003CH
- No address is available
Correct answer: 4. No address is available
The interrupt that is only edge sensitive
The interrupt that is only edge sensitive
- RST 5.5
- RST 7.5
- RST6.5
- TRAP
Correct answer: 2. RST 7.5
S0 and S1 pins are used for
S0 and S1 pins are used for
- Acknowledgement of the interrupt
- Indicating serial communication
- Indicating the processor’s status
- None of above
Correct answer: 3. Indicating the processor’s status
Which of the below mentioned lists the interrupt in decreasing order of priority
Which of the below mentioned lists the interrupt in decreasing order of priority
- INTR, TRAP, RST 7.5, RST 6.5, RST 5.5
- RST 7.5, RST 6.5, RST 5.5, TRAP, INTR
- TRAP, RST 5.5, RST 6.5, RST 7.5, INTR
- TRAP, RST 7.5, RST 6.5, RST 5.5, INTR
Correct answer: 4. TRAP, RST 7.5, RST 6.5, RST 5.5, INTR
The single instruction that is used to clear the lower nibble of accumulator in 8085 language assembly is
The single instruction that is used to clear the lower nibble of accumulator in 8085 language assembly is
- ANI F0H
- ANI OFH
- XRI 0FH
- XRI FOH
Correct answer: 1. ANI F0H
If the content of register C is 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be
If the content of register C is 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be
- 00000000
- 11111111
- 01010101
- None of above
Correct answer: 2. 11111111