Worksheetsmicroprocessor
Total questions: 30
Worksheet time: 15mins
The operating voltage level of the microprocessor is ___
2V
5V
12V
15V
Bidirectional Address line of 8085 processor is _____
A0 to A15
A0 to A7
A8 to A15
A0 only
In flag register, how many bits have significant information?
4
5
6
8
The register which holds the information about the nature of results if arithmetic of logic operations is called as _____.
Accumulator
Condition Code Register
Flag Register
Process Status Register
8085 microprocessor is an 8-bit microprocessor designed by?
A. IBM
B. Dell
C. Intel
In 8085, 16-bit address bus, which can address upto?
A. 16KB
B. 32KB
C. 64KB
There are _______ general purpose registers in 8085 processor
A. 5
B. 6
C. 7
It is also a 16-bit register works like stack, which is always incremented/decremented by 2 during push & pop operations.
A. Stack pointer
B. Temporary register
C. Flag register
The registers available to the user can be further classified into:-
a) General purpose register
b) Special-purpose register
c) both a & b
SP stands for ________________
a) Stack pointer
b) Segment pointer
c) Status pointer
1 byte=
8bit
16 bit
32 bit
1 word=
8 bit
16 bit
32 bit
The number of pair register found in 8085 microprocessor
Three
Four
two
how many bits are used for address bus of 8085
8
16
32
how many pins are present in 8085
20
40
30
Select which is not a register in the Architecture
AX
BX
GX
CX
How does the 8085 processor handle maskable interrupts?
The 8085 processor handles maskable interrupts using the RST 7.5 instruction
The 8085 processor handles maskable interrupts using the TRAP input pin
The 8085 processor handles maskable interrupts using the HOLD and HLDA signals
The 8085 processor handles maskable interrupts using the INTR input pin and the interrupt enable flag.
What are the different types of interrupts supported by 8085?
TRAP, RST 7.5, RST 6.5, RST 5.5, INTR, RST 5.5
RST 2.5
RST 3.5
RST 4.5
Give an example of an instruction in 8085 that performs addition.
ADD
SUB
INC
MUL
What is the size of the instruction set in 8085?
246
512
1024
128
How many bytes of memory can 8085 address directly?
16384 bytes
4096 bytes
65536 bytes
1024 bytes
What is the purpose of memory address register (MAR) in 8085?
To store the result of arithmetic operations
To manage the cache memory
To control the input/output devices
To hold the address of the memory location being accessed or modified by the CPU.
Explain the function of instruction register in 8085.
The instruction register in 8085 is responsible for managing memory allocation.
The instruction register in 8085 controls the input/output operations of the processor.
The instruction register in 8085 holds the current instruction being executed by the processor.
The instruction register in 8085 stores the result of arithmetic operations.
What is the role of program counter in 8085 architecture?
Memory address of the next instruction to be executed
Manages the input/output operations of the CPU
Controls the flow of data between the CPU and memory
Stores the result of arithmetic and logical operations
Address Bus
A0 - A15
A1 - A16
A15
All the above
Data Bus
unidirectional
bidirectional
no communication
None of the above
INTR
Interrupt Read
Interrupt Reverse
Interrupt Reset
Interrupt Request
INTA
Interrupt access
Interrupt Acknowledge
Interrupt avoid
none of these
Q. Second generation computers used _________.
Vacuum tubes
Microprocessors
Transistors
Integrated circuits
Q. Which of these generations of computers used ICs?
First generation computers
Second generation computers
Third generation computers
Fourth generation computers
