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Basics (Computer Science) Solved Questions & Notes (2026) - Apex Rankers

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78 Total Solved Questions
~117 mins Estimated Reading Time
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Basics

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📜 Instructions / Reading Passage
6 Questions in this set
COMPUTER APTITUDE TEST (Basic Computer Knowledge): Write the correct answer for the provided multiple-choice questions involving expert systems, industrial computer applications (POS, CIM, Actuarial accounting), and management information system (MIS) modeling.
Q. 1 Computer Aptitude Test
Difficulty: Hard (1 Mark)
Expert systems are part of the general area of research known as
A
AI
✓ Correct
B
ES
C
STUDENT
D
RAND
E
None of the above
💡 Step-by-Step Explanation & Concept Rationale
Artificial Intelligence (AI) is the broad field that encompasses the development of expert systems.
Q. 2 Computer Aptitude Test
Difficulty: Hard (1 Mark)
In the future, users of a computer system may identify themselves by entering a:
A
Hard print
B
Soft print
C
Voice print
✓ Correct
D
Digital
E
None of the above
💡 Step-by-Step Explanation & Concept Rationale
Biometric identification methods include voice recognition (voice prints) for user authentication.
Q. 3 Computer Aptitude Test
Difficulty: Hard (1 Mark)
The most prominent system in the retail sales industry is the ________ system:
A
POS (point-of-scale)
✓ Correct
B
COBOL
C
ACM
D
PC/XT
E
None of the above
💡 Step-by-Step Explanation & Concept Rationale
Point of Sale systems are standard for managing transactions and inventory in retail.
Q. 4 Computer Aptitude Test
Difficulty: Hard (1 Mark)
The integration of the computer with manufacturing is called CIM or
A
CAM
B
CAD
C
Computer manufacturing
✓ Correct
D
All the above
E
None of the above
💡 Step-by-Step Explanation & Concept Rationale
Computer Integrated Manufacturing (CIM) refers to the full automation of a manufacturing facility.
Q. 5 Computer Aptitude Test
Difficulty: Hard (1 Mark)
A ________ purpose computer is designed for a specific application:
A
Special
✓ Correct
B
Analog
C
Hybrid
D
Digital
E
None of the above
💡 Step-by-Step Explanation & Concept Rationale
Special-purpose computers are built to perform one specific set of tasks or applications.
Q. 6 Computer Aptitude Test
Difficulty: Hard (1 Mark)
Actuarial accounting system is associated with the ________ industry:
A
Insurance
✓ Correct
B
Reliable
C
Consistent
D
Exhaustive
E
None of the above
💡 Step-by-Step Explanation & Concept Rationale
Actuarial science is primarily used by the insurance industry to assess risk and uncertainty.
📜 Instructions / Reading Passage
1 Question in this set
OPERATIONS RESEARCH & HARDWARE: Write the correct answer for questions involving PERT/CPM critical paths, mathematical modeling variables (uncontrollable, dependent, decision), and the history of microprocessor development.
Q. 7 Computer Aptitude Test
Difficulty: Hard (1 Mark)
The process of starting or restarting a computer system by loading instructions from a secondary storage device into the computer memory is called:
A
Duping
B
Booting
✓ Correct
C
Padding
D
All of above
💡 Step-by-Step Explanation & Concept Rationale
Booting loads the OS.
📜 Instructions / Reading Passage
10 Questions in this set
HARDWARE AND SYSTEM GENERATIONS: Write the correct answer for questions involving computer generations (1st to 4th), specific hardware standards (VGA, MSI, Floppy disk capacities), and programming language origins.
Q. 8 Computer Aptitude Test
Difficulty: Hard (1 Mark)
In the third Generation of computers:
A
Distributed data processing first became popular
B
An operating system was first developed
C
High level procedural language were- first used
D
Online real time systems first become popular
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
The third generation of computers (roughly 1964–1971) was defined by the introduction of Integrated Circuits (ICs). This massive jump in processing speed and memory management allowed computers to handle multiple tasks simultaneously through timesharing, which made online, real-time operating systems widely popular and commercialized for the first time.
Q. 9 Computer Aptitude Test
Difficulty: Medium (1 Mark)
A digital computer did not score over an analog computer in terms of:
A
Speed
B
Accuracy
✓ Correct
C
Reliability
D
Cost
💡 Step-by-Step Explanation & Concept Rationale
While digital computers are precise, analog computers deal with continuous variables which can offer direct physical accuracy.
Q. 10 Computer Aptitude Test
Difficulty: Medium (1 Mark)
FORTRAN is:
A
File Translation
B
Format Translation
C
Formula Translation
✓ Correct
D
Floppy Translation
💡 Step-by-Step Explanation & Concept Rationale
FORTRAN is a high-level programming language developed by IBM for numeric and scientific computing.
Q. 11 Computer Aptitude Test
Difficulty: Medium (1 Mark)
In analog computer:
A
Input is first converted to digital form
B
Input is never converted to digital form
✓ Correct
C
Output is displayed in digital form
D
All of above
💡 Step-by-Step Explanation & Concept Rationale
Analog computers process continuous data (voltages, pressures) directly.
Q. 12 Computer Aptitude Test
Difficulty: Hard (1 Mark)
In latest generation computers, the instructions are executed:
A
Parallel only
B
Sequentially only
C
Both sequentially and parallel
✓ Correct
D
All of above
💡 Step-by-Step Explanation & Concept Rationale
Modern systems use multiple cores and pipelines to execute instructions.
Q. 13 Computer Aptitude Test
Difficulty: Hard (1 Mark)
Personnel who design; program; operate and maintain computer equipment refers to:
A
Console-operator
B
Programmer
C
People-ware
✓ Correct
D
System Analyst
💡 Step-by-Step Explanation & Concept Rationale
Human resources involved in IT and computer systems.
Q. 14 Computer Aptitude Test
Difficulty: Hard (1 Mark)
Human beings are referred to as Homosapinens, which device is called Sillico Sapiens?
A
Monitor
B
Hardware
C
Robot
D
Computer
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Coined to reflect the cognitive-like processing power of silicon-based chips.
Q. 15 Computer Aptitude Test
Difficulty: Hard (1 Mark)
An error in software or hardware is called a 'bug. What is the alternative computer jargon for it?
A
Leech
B
Suid
C
Slug
D
Glitch
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
A glitch is a sudden, often temporary, malfunction or fault in equipment or software.
Q. 16 Computer Aptitude Test
Difficulty: Medium (1 Mark)
Modern Computer are very reliable but they are not:
A
Fast
B
Powerful
C
Infallible
✓ Correct
D
Cheap
💡 Step-by-Step Explanation & Concept Rationale
While highly accurate, computers can still fail due to bugs or environmental factors.
Q. 17 Computer Aptitude Test
Difficulty: Medium (1 Mark)
The subject of cybernetics deals with the science of:
A
Genetics
B
Control and communications
✓ Correct
C
Molecular biology
D
Biochemistry
💡 Step-by-Step Explanation & Concept Rationale
Cybernetics is the transdisciplinary study of control and communication in living and non-living systems.
📜 Instructions / Reading Passage
8 Questions in this set
COMPUTER HARDWARE & COMPONENTS: Solve questions regarding the physical architecture of computer systems, including storage media (magnetic tape, disks, optical drives), input/output devices (VDU, printers, keyboards), and CPU register functions.
Q. 18 Computer Aptitude Test
Difficulty: Medium (1 Mark)
What is meant by a dedicated computer?
A
Which is used by one person only
B
Which is assigned one and only one task
✓ Correct
C
Which uses one kind of software
D
Which is meant for application software
💡 Step-by-Step Explanation & Concept Rationale
A dedicated computer is specialized for a single purpose or specific function.
Q. 19 Computer Aptitude Test
Difficulty: Medium (1 Mark)
The technical term not related to computer systems:
A
Virus
B
Winchester Disk
C
Mouse
D
FIFO System
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
While FIFO (First-In, First-Out) is a valid conceptual caching algorithm and data structure method used within software queue management, the term "FIFO System" is primarily an accounting and inventory management term used to calculate the value of physical inventory or cost of goods sold. Because it is an external business system framework rather than a technical computer hardware or native system architecture configuration, it is classified as not related.
Q. 20 Computer Aptitude Test
Difficulty: Medium (1 Mark)
Which of the following terms in not associated with computers?
A
Frank land reaction
✓ Correct
B
Data base
C
Binary
D
Windows
💡 Step-by-Step Explanation & Concept Rationale
The Frankland reaction is a chemical process involving organozinc compounds.
Q. 21 Computer Aptitude Test
Difficulty: Hard (1 Mark)
"Binary Codes" as used in computer sciences are codes made up of which of the following two numbers?
A
0 and 9
B
1 and 3
C
0 and 1
✓ Correct
D
9 and 1
💡 Step-by-Step Explanation & Concept Rationale
Binary logic is base-2, consisting exclusively of the digits 0 and 1.
Q. 22 Computer Aptitude Test
Difficulty: Hard (1 Mark)
Which of the following is the unit to express the memory of a computer?
A
Compiler
B
Bus
C
Byte
✓ Correct
D
Clone
E
CAD
💡 Step-by-Step Explanation & Concept Rationale
A byte (8 bits) is the standard unit used to measure digital storage capacity.
Q. 23 Computer Aptitude Test
Difficulty: Hard (1 Mark)
Which one of the following characteristics is absent in a computer, however sophisticated it may be?
A
High speed
B
Intelligence
✓ Correct
C
Accuracy
D
Perfect Memory
💡 Step-by-Step Explanation & Concept Rationale
Computers lack "natural" intelligence or the ability to think independently without programming.
Q. 24 Computer Aptitude Test
Difficulty: Medium (1 Mark)
The act of retrieving existing data from memory is called:
A
Read-out
✓ Correct
B
Read from
C
Read
D
All of above
💡 Step-by-Step Explanation & Concept Rationale
This term refers to the process of transferring data from internal storage to an output device or register.
Q. 25 Computer Aptitude Test
Difficulty: Medium (1 Mark)
All modern computer operate on:
A
Information
B
Floppies
C
Data
✓ Correct
D
Word
💡 Step-by-Step Explanation & Concept Rationale
Computers process raw data into useful information.
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