General Introduction to Computers: MCQs for Banking & SSC
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Knowing the basics of computers is very important for many competitive exams, especially those for banks and government jobs like the SSC CGL (Mains). If you're studying for a banking exam or a government job, understanding computer applications can really help you do well on the exam.
This post will help you learn about the basics of computers. It covers the most important computer concepts that are often asked in competitive exams like Banking, SSC CGL, and other government jobs. We've put together a list of important multiple-choice questions (MCQs) based on previous year question papers.
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Q1: The computer's processor consists of the following parts
A. CPU and Main Memory
B. Hard Disk and Floppy Drive
C. Main Memory and storage
D. Operating system and Applications
E. Control Unit and ALU
The processor, also known as the central processing unit (CPU), consists of the Control Unit (CU) and the Arithmetic Logic Unit (ALU). The CU directs operations, while the ALU performs calculations and logical operations. Together, they form the core of data processing in a computer.
Q2: The arithmetic/logic unit performs the following actions
A. checks data for accuracy
B. does calculations using addition, subtraction, multiplication, and division
C. does logical comparisons, such as equal to, greater than, less than
D. does both calculations and logical comparisons
E. None of these
The arithmetic/logic unit (ALU) in a computer is responsible for performing both arithmetic operations like addition and subtraction, and logical comparisons such as greater than or equal to. These tasks are crucial for processing instructions efficiently.
Q3: Arithmetic operations _______
A. involve matching one data item to another to determine if the first item is greater than, equal to, or less than the other item
B. sort data items according to standard, predefined criteria in ascending order or descending order
C. include addition, subtraction, multiplication, and division
D. use conditions with operators such as AND, OR, and NOT
E. None of these
Arithmetic operations in computing refer to basic mathematical functions such as addition, subtraction, multiplication, and division. These are performed by the ALU within the CPU.
Q4: A microprocessor is the brain of the computer and is also called a(n) _______
A. microchip
B. macrochip
C. macroprocessor
D. calculator
E. software
A microprocessor is a compact integrated circuit (IC) that contains the core processing logic of a computer. It's also called a microchip and is vital for executing instructions and performing calculations.
Q5: Main memory works in conjunction with _________
A. special function cards
B. RAM
C. CPU
D. Intel
E. All of these
Main memory (often referred to as RAM - Random Access Memory) stores data and instructions that the CPU (Central Processing Unit) needs to access immediately.
The CPU constantly interacts with RAM, fetching instructions from it, executing them, and storing the results back in RAM. Special function cards (like graphics cards) and Intel (a specific chip manufacturer) are not directly involved in the same way as the CPU in the main memory's core function.
Q6: Once information is input into a computer it becomes _________
A. objects
B. data
C. ideas
D. None of these
When information is entered into a computer, it is stored and recognized as data. This data can be processed and converted into meaningful output, depending on the user’s requirements.
Q7: The main job of a CPU is to ________
A. carry out program instructions
B. store data/information for future use
C. process data and information
D. both (A) and (C)
E. None of these
The CPU's primary role is to carry out instructions provided by programs (control) and to process data (arithmetic/logic operations). It acts as the brain of the computer.
Q8: The primary goal of a computer is to turn data into _________
A. ideas
B. suggestions
C. information
D. reports
E. pictures
Computers process raw data and convert it into meaningful information. For example, financial software processes transaction data to generate reports, enabling users to make informed decisions.
Q9: Computer ___________ is whatever is typed, submitted, or transmitted to a computer system
A. input
B. output
C. data
D. circuitry
E. None of these
Input is any information or command that a user provides to a computer system. Examples include typing on a keyboard, clicking a mouse, or uploading a file.
Q10: When speaking of computer input and output, input refers to _________
A. any data processing that occurs from new data input into the computer
B. retrieval of data or information that has been input into the computer
C. data or information that has been entered into the computer
D. the transmission of data that has been input into the computer
E. Both (C) and (D) above
Input involves entering or transmitting data into a computer for processing. For instance, typing a document or uploading a file is considered input. Both (C) and (D) define this concept accurately.
Q11: All of the logic and mathematical calculations done by the computer happen in/on the _________
A. system board
B. central control unit
C. central processing unit
D. mother board
E. memory
The central processing unit (CPU) is the hardware component where all calculations and logic operations are performed. It ensures instructions are executed correctly.
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These MCQs are designed to give you a solid foundation in computer applications and prepare you for questions that frequently appear in exams. By mastering these basics, you can ensure that the Computer Awareness section of your exam becomes one of your strengths.
Computer Awareness Chapters: Learn Key Concepts with MCQs
Tip: Practice these multiple-choice questions and read the explanations to really understand computer awareness. This will help you get a good score and increase your chances of passing the exam.