Computer Studies 2023 Jamb Examination
Computer Studies 2023 Jamb Examination
Question 71
In BASIC, REM shows a statement to be
REM in BASIC stands for 'remark' and is used to include comments in the program that are not executed.
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Question 72
Computers that are small and low cost are referred to as ?
Microcomputers are small, affordable computers designed for individual use.
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Question 73
If the control unit controls other units of the CPU, which unit stores instructions, data and intermediate results.
The memory unit stores instructions, data, and intermediate results for processing by the CPU.
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Question 74
The closest computer language to human is ?
High-level languages are closest to human language and are easier to read and write than low-level languages.
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Question 75
Translating the problem statement into a series of sequential steps describing what the program must do is known as
Creating an algorithm involves breaking down a problem into sequential steps that define what the program must do.
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Question 76
One of the following is not a good way to prevent virus.
Carelessly exposing personal information increases the risk of virus infection; proper security practices prevent viruses.
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Question 77
The first stage of data processing activities is ?
Data collection is the first step, where raw data is gathered before processing and manipulation.
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Question 78
Using Boolean identities, reduce the given Boolean expression:
A(A+1) + A(B+0) + C.1
A(A+1) + A(B+0) + C.1
Step-by-step reduction:\[ A(A+1) + A(B+0) + C.1 \]\[ = A + AB + C \] (using \(A+1 = 1\) and \(B+0 = B\))\[ = A(1+B) + C \]\[ = A + C \] (using \(1+B = 1\))
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Question 79
In computer architecture, the type of bus that connects the major components of a computer system is
The system bus connects the major components of a computer, including CPU, memory, and input/output devices.
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Question 80
Which of the following controls the way in which the computer system functions and provides a means by which users can interact with the computer.
The operating system manages the computer hardware and software resources and provides a user interface for interaction.
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Which of the following conditions are necessary and sufficient for total internal reflection to take place at the boundary between two optical media?
I. Light is passing from optical denser medium to optically less dense medium
II. Light is passing from optically less dense medium to optically denser medium
III. Angle of incidence is greater than a certain critical value
IV. Angle of incidence is lesser than a certain critical value