NEW
Font size
WorksheetsMicroprocessor Unit -1Quiz
Total questions: 35
Worksheet time: 18mins
A microprocessor fetches, decodes, and executes _____.
program
mnemonics
instruction
Opcode
What is a microprocessor?
A device used for signal amplification
A programmable electronic chip that processes data
A storage device for data
A power supply unit
What is the primary function of the ALU in a microprocessor?
To control input/output devices
To store data
To perform arithmetic and logic operations
To decode instructions
Which bus in a microprocessor carries data between the processor and memory?
Address bus
Control bus
Data bus
Serial bus
What is the main purpose of the Program Counter (PC) in a microprocessor?
To store data
To decode instructions
To point to the address of the next instruction
To control external devices
What is the primary role of the Control Unit in a microprocessor?
Perform arithmetic operations
Manage data flow and decode instructions
Store temporary data
Handle power supply to the processor
What is "pipelining" in the context of microprocessors?
A technique to increase power efficiency
A method to execute multiple instructions simultaneously
A system for data storage
A way to connect multiple processors
What does an interrupt do?
Speeds up processing
Temporarily halts the current program to handle a specific event
Deletes memory contents
Provides additional storage
Which register in a microprocessor is used to store the results of arithmetic and logical operations?
Accumulator
Program Counter
Stack Pointer
Instruction Register
What is the purpose of registers in a microprocessor?
To store permanent data
To store temporary data and instructions
To control external devices
To generate clock signals
Which of these represents the correct order of the fetch-execute cycle?
Execute, Fetch, Decode
Decode, Execute, Fetch
Fetch, Decode, Execute
Fetch, Execute, Decode
What is the purpose of the stack pointer?
To point to the next instruction
To keep track of subroutine return addresses
To store arithmetic results
To count clock cycles
Which of the following is a type of microprocessor?
cisc
risc
epic
all
The computer architecture aimed at reducing the time of execution of instructions is ________
a) CISC
d) ANNA
b) RISC
c) ISA
d) ANNA
Pipe-lining is a unique feature of _______
risc
cisc
both
none
Which is the microprocessor comprises?
Register section
One or more ALU
Control unit
All of the mentioned
A 16-bits address bus can generate _____addresses.
32767
25652
65536
None of the mentioned
Which of the following is a 16-bit register?
AL
AX
AH
All of the mentioned
The number of address and data lines of 8086_________.
8 and 8
16 and 16
20 and 16
16 and 20
Instruction Pointer (IP) contains offset address of ________ segment.
Data segment
Code segment
Stack segment
Extra segment
In 8086 the overflow flag is set when______.
The sum is more than 16 bit
Carry and sign flags are set
Signed numbers go out of their range after an arithmetic operation
During subtraction
The SP is indicated by ________
single pointer
stack pointer
source pointer
destination pointer
Address latch enable pin is used to
multiplex address and data lines
demultiplex address and data lines
NMI stands for
Not memory instruction
not maskable instruction
non maskable instruction
none of the above
The starting address of the segment is called
base address
offset address
effective address
none of the above
The number of General Purpose Registers present in 8086 microprocessor
4
14
10
34
Memory size of 8086 microprocessor
1MB
4KB
256 bytes
128bytes
A Microprocessor contains millions of __________ connected by wires.
Computer
Transistors
RAM
Memory
The Intel 8086 Microprocessor is _________ processor.
8 bit
32 bit
16 bit
64 bit
The work of Execution unit is _____________
Encoding
Decoding
Processing
Calculations
The CF is known as _________
Carry flag
Conditional flag
Common flag
Control flag
The register AX is formed by________
AH & AL
BH & BL
CH & CL
DH & DL
The first microprocessor was ___________
Intel 4008
Intel 4004
Intel 8085
Intel 8080
OE Stands for
Overflow Error
Overrun Error
Overflow enable
Overrun Enable
ISR Stands for
Internet service router
Internet Service Road
Interrupt Service road
Interrupt Service Routine
