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Online Tests
PPSC Computer Science Chapter 1 Basic Computer Knowledge Online Test MCQs With Answers
Question # 1
The system unit of a personal computer typically contains all of the following except.
Choose an answer
Microprocessor
Disk controller
Serial interface
Modem
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Question # 2
A physical connection between the microprocessor memory and other parts of the microcomputer is known as.
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Path
Address Bus
Route
All of the above
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Question # 3
Before a sdisk cna be used to store data it must be.
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Formatted
Reformatted
Addressed
None
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Question # 4
Which of the following code used in present day computing was developed by IBM corporation.
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ASCII
Hollerith Code
Baudot code
EBCDIC Code
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Question # 5
Which of the following registers is used to keep track of address of the memory location where the next instruction is located.
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Memory address register
Memory data register
Program counter
Instruction register
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Question # 6
What type of device of computer keyboard.
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Memory
Output
Storage
Input
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Question # 7
How many address lines are needed to address each memory location in a 2048 x 4 memory chip.
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10
11
8
12
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Question # 8
Plotter accuracy is measured in term of repeatability and
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Buffer size
Resolution
Vertical dimensions
Intelligence
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Question # 9
The first electronic general purpose digital computer built by Mauchly and Eckert called ENIA did not work on the stored program principle How many numbers could it store in its internal memory.
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100
20
40
80
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Question # 10
To locate a data item for storage is
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Field
Feed
Database
Fetch
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Question # 11
Which of the following are the two main components of the CPU.
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Control unit and registers
Registers and main memory
Control unit and ALU
ALU and bus
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Question # 12
The number of records contained within a block of data on magnetic tape is defined by the
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Block definition
Record contain clause
Blocking factor
Record per block factor
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Question # 13
Digital computer is a computer.
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That works with discrete quantities.
That works with analog quantities
Botha A and B
None
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Question # 14
Can you tell what passes into and out from the computer via its ports.
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Data
Bytes
Graphics
Pictures
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Question # 15
The memory which is programmed at the time it is manufactured.
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POM
RAM
PROM
EPROM
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Question # 16
Which of the following are the two main components of the CPU
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Control unit and registers
Registers and main memory
Control Unit and ALU
ALU and bus
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Question # 17
Who invented the microprocessor.
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Marcian E Huff
Herman H Goldstein
Joseph jacuard
All of above
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Question # 18
RATS stand for
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Regression analysis time series
Regression analyses time sharing
Real Analysis series
All of above
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Question # 19
One of the class of storage device devices that can access storage location in any order is.
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DTE
DASID
DDE
DCD
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Question # 20
A computer consists of.
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A central processing unit
A memory
Input and output unit
All of the above
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Question # 21
Computer instructions Witten with the use of English words instead of binary machine code is called.
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Mnemonics
Symbolic code
Gray codes
Opcode
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