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Online Tests
PPSC Computer Science Chapter 17 Microprocessor And Assembly Language Online Test MCQs With Answers
Question # 1
Which are the general register.
Choose an answer
AX.; Accumulator
BX: base
CX: Count
All of these
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Question # 2
In microprocessor one of the operands holds a special register called.
Choose an answer
Calculator
Dedicated
Accumulator
None
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Question # 3
Single address computer instruction has two parts.
Choose an answer
The operation code
The operand
A and b
None
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Question # 4
Which chip used for AD & DA converters in 8086 processor.
Choose an answer
8251
8255
8254
8259
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Question # 5
Each memory location has
Choose an answer
Address
Contents
Both a and b
None
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Question # 6
Which is the great importance's in modular programming
Choose an answer
Stack segment
Array segment
Queue segment
All of these
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Question # 7
Who work as a cache for the page table.
Choose an answer
TLB
TLP
LEB
WAB
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Question # 8
The network of wires or electronic path ways on mother board back side.
Choose an answer
PCB
BUS
Both a and b
None
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Question # 9
Which multiplex by ADC 0808/0809
Choose an answer
2:4
3:8
4:16
None
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Question # 10
The external device is connected to a pin called the__ pin on the processor chip.
Choose an answer
Interrupt
Transfer
Both
None
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Question # 11
______is usually the first level of memory access by the microprocessor.
Choose an answer
Cache memory
Data memory
Main memory
All of these
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Question # 12
OCW stand for
Choose an answer
Operational command words
Operational conjunction words
Operational control words
Operational cost words
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Question # 13
An externa feedback resistor acts to control the.
Choose an answer
Gain
Gate
Loss
Profit
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Question # 14
The left side of any binary number is called.
Choose an answer
Least significant digit
Most significant digit
Medium significant digit
Low significant digit
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Question # 15
DAC stand for
Choose an answer
Analogue to analogue converters
Analogue to digital converters
Digital to digital converters
Digital to analogue converters
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Question # 16
Which process information at a much faster rate than it can retrieve it from memory
Choose an answer
ALU
Processor
Micro procesor
CPU
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Question # 17
Customized ROMS are called.
Choose an answer
Mask ROM
Flash ROM
EPROM
None
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Question # 18
MAR stand for
Choose an answer
Memory address register
Memory data recode
Micro data register
None
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Question # 19
Which statement is false about WR signal
Choose an answer
WR signal controls the input buffer
the bar over Wr means that this is an active low signal
the bar over WR means that this is an active high signal
If WR is 0 then the input data reaches the latch input.
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Question # 20
The organization of I/O devices create a difference between____
Choose an answer
Digital computer
Micro computer
A and b
None
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Question # 21
_______ is the most commonly used cache controller with a number of processor sets.
Choose an answer
L 211 controller
L 210 controller
L 214 controller
None
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