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Operating System
1081
Computer Science Fundamentals
998
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Computer Science Fundamentals
What is stored in the H & L general-purpose register?
Opcode
Address of memory
Address of next instruction
Temporary data
H and L are 8-bit general-purpose registers. They are used to store the address of memory. Together they can store a 16-bit address.
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rikazzz
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Computer Science Fundamentals
Which of the following is the correct representation of a binary number?
(124)2
1110
(110)2
(000)2
The binary numbers should comprise only two digits 0 and 1.
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rikazzz
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Computer Science Fundamentals
Abstraction combines the data and functions into a single unit called a class.
True
False
The statement is false. Data abstraction involves hiding the details and giving only the necessary information to the user.
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rikazzz
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Computer Science Fundamentals
The first widely-used high level language developed in 1957.
C
Java
Fortran
Cobol
Fortran which stands for Formula Translation was the first widely-used high level language. It was developed by IBM for scientific applications. The program was entered as punch cards.
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rikazzz
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Computer Science Fundamentals
Magnetic tape is a type of _________ access device.
Sequential
Direct access
Step
Indirect
Magnetic tapes are sequential access devices. They are the secondary storage devices and are used to store large amounts of data. In sequential access, data can be retrieved in the same sequence in which it is stored.
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rikazzz
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Computer Science Fundamentals
IN stands for?
Input
InterNet
Intelligent Network
IntraNet
IN stands for Intelligent Network. It is a telephone network that provides technical services.
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rikazzz
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Computer Science Fundamentals
URL stands for?
Uniform Resource Locator
Uniform Research Locator
Uniform Resource Link
Uniform Research Link
WWW specifies the URL of a website and allows the user to access information. URL stands for Uniform Resource Locator.
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rikazzz
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Computer Science Fundamentals
The number of cells in a K-map with n-variables.
2n
n2
2n
n
K-map is nothing but Karnaugh map.
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rikazzz
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Computer Science Fundamentals
The ___________ contains the address of the next instruction to be executed.
IR
PC
Accumulator
System counter
PC stands for program counter (It contains the address of the next instruction to be executed).
Author:
rikazzz
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Computer Science Fundamentals
What is the complement of X’Y’Z?
X+YZ
X’+Y+’Z’
X+Y+Z’
XYZ’
The complement is obtained by converting the complement terms to normal terms and vice versa. Also, the OR and AND operators are interchanged. Here, X’Y’Z gets converted to X+Y+Z’.
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rikazzz
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