MCQ on Processor and Memory – Computer GK
Useful and informative MCQ on Processor and Memory that includes topics like CPU (Central Processing Unit), CU (Control Unit), ALU (Arithmetic Logic Unit), Instruction Set, Registers, Processor Types and Speed, Main Memory – RAM and ROM, Cache Memory, Main Memory Organization, etc.
These MCQ on Processor and Memory are very helpful for competitive exams such as CPCT, GATE, IES/ESE, IBPS PO, IBPS Clerk, SBI PO, SBI Clerk, RBI, SEBI, LIC, NICL, BCA, B.Sc. IT, DCA, SSC, RRB, NIELIT CCC, CTET, UDC NET, CUET, MCA, PGDCA, MCS, TET, State Police, BPO, etc.
These MCQ on Processor and Memory have correct answers and brief explanations of each question for better understanding.
Q1. Which of the following is a component of the Central Processing Unit (CPU)?
a) Control Unit (CU)
b) Arithmetic Logic Unit (ALU)
c) Registers
d) All of the above
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Correct Answer: d) All of the above
Explanation: The Central Processing Unit (CPU) is the primary component of a computer that performs most of the processing inside the computer. It consists of the Control Unit (CU), Arithmetic Logic Unit (ALU), and Registers. The CU manages the flow of data and instructions between various components of the computer, while the ALU performs arithmetic and logical operations on the data. Registers are small, fast storage locations within the CPU that hold data and instructions during processing.
Q2. What is the primary function of cache memory in a computer system?
a) To store the operating system
b) To store frequently used data and instructions for faster access
c) To store user files and documents
d) To store data temporarily during processing
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Correct Answer: b) To store frequently used data and instructions for faster access
Explanation: Cache memory is a small, high-speed memory located close to the CPU that stores frequently used data and instructions for faster access. It helps reduce the time taken to access data from the main memory, thereby improving the overall performance of the computer system.
Q3. Which of the following is a type of main memory organization?
a) Cache memory
b) Register memory
c) Random Access Memory (RAM)
d) Read-Only Memory (ROM)
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Correct Answer: c) Random Access Memory (RAM)
Explanation: Main memory organization refers to the arrangement and management of memory components in a computer system. The main memory consists of Random Access Memory (RAM) and Read-Only Memory (ROM). RAM is a volatile memory that stores data and instructions temporarily during processing, while ROM is a non-volatile memory that stores permanent data and instructions required for the computer’s basic operations.
Q4. Which of the following factors affect processor speed?
a) Clock speed
b) Number of cores
c) Instruction set
d) All of the above
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Correct Answer: d) All of the above
Explanation: Processor speed is influenced by several factors, including clock speed, the number of cores, and the instruction set. Clock speed refers to the number of clock cycles per second, measured in gigahertz (GHz) or megahertz (MHz), and determines how fast the processor can execute instructions. The number of cores in a processor affects its ability to perform multiple tasks simultaneously. The instruction set is a collection of commands that a processor can execute, and its complexity can impact the processor’s performance.
Q5. Which of the following is a type of processor architecture?
a) Complex Instruction Set Computer (CISC)
b) Reduced Instruction Set Computer (RISC)
c) Explicitly Parallel Instruction Computing (EPIC)
d) All of the above
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Correct Answer: d) All of the above
Explanation: There are several types of processor architectures, including Complex Instruction Set Computer (CISC), Reduced Instruction Set Computer (RISC), and Explicitly Parallel Instruction Computing (EPIC). CISC processors have a large and complex instruction set, while RISC processors have a smaller and simpler instruction set, allowing for faster execution. EPIC processors are designed to execute multiple instructions simultaneously, improving performance in parallel processing tasks.
Q6. What is the primary purpose of registers in a CPU?
a) To store the operating system
b) To store user files and documents
c) To store data temporarily during processing
d) To store frequently used data and instructions for faster access
Show Answer
Correct Answer: c) To store data temporarily during processing
Explanation: Registers are small, fast storage locations within the CPU that hold data and instructions during processing. They are used to store data temporarily during processing, allowing the CPU to quickly access and manipulate the data as needed. Registers play a crucial role in the overall performance of a computer system, as they enable the CPU to perform operations more efficiently.
Q7. Which of the following is a type of memory chip?
a) Dynamic Random Access Memory (DRAM)
b) Static Random Access Memory (SRAM)
c) Flash memory
d) All of the above
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Correct Answer: d) All of the above
Explanation: There are several types of memory chips used in computer systems, including Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), and Flash memory. DRAM is a type of volatile memory that stores data temporarily and requires constant refreshing to maintain its contents. SRAM is also a volatile memory but does not require refreshing, making it faster and more expensive than DRAM. Flash memory is a non-volatile memory that retains its contents even when the power is turned off, making it suitable for long-term storage.
Q8. Which of the following is a storage evaluation criterion for main memory?
a) Access time
b) Capacity
c) Cost per bit
d) All of the above
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Correct Answer: d) All of the above
Explanation: When evaluating main memory storage, several criteria are considered, including access time, capacity, and cost per bit. Access time refers to the time it takes to read or write data to or from the memory, with shorter access times being more desirable. Capacity is the total amount of data that can be stored in the memory, and larger capacities are generally preferred. Cost per bit is the cost of storing a single bit of data in the memory, with lower costs being more desirable. These criteria help determine the most suitable memory solution for a given computer system.
Q9. Which of the following is NOT a type of processor?
a) Complex Instruction Set Computer (CISC)
b) Reduced Instruction Set Computer (RISC)
c) Explicitly Parallel Instruction Computing (EPIC)
d) Random Access Memory (RAM)
Show Answer
Correct Answer: d) Random Access Memory (RAM)
Explanation: Random Access Memory (RAM) is not a type of processor. Instead, it is a type of main memory organization used to store data and instructions temporarily during processing. Complex Instruction Set Computer (CISC), Reduced Instruction Set Computer (RISC), and Explicitly Parallel Instruction Computing (EPIC) are all types of processor architectures, each with its own unique characteristics and advantages.
Q10. What is the primary function of the Control Unit (CU) in a CPU?
a) To perform arithmetic and logical operations on data
b) To manage the flow of data and instructions between various components of the computer
c) To store data temporarily during processing
d) To store frequently used data and instructions for faster access
Show Answer
Correct Answer: b) To manage the flow of data and instructions between various components of the computer
Explanation: The primary function of the Control Unit (CU) in a CPU is to manage the flow of data and instructions between various components of the computer. It coordinates the activities of the CPU, memory, and input/output devices, ensuring that data and instructions are properly transferred and executed. The CU plays a crucial role in the overall performance of a computer system, as it enables the efficient execution of tasks and the smooth operation of the system.
More MCQ on Computer GK for Competitive Exams
- Introduction to Computer
- Basic Computer Organization
- Number Systems
- Computer Codes
- Processor and Memory
- Secondary Storage Devices
- Input and Output Devices
- Computer Software
- Flowchart and Computer Languages
- System Implementation
- Operating Systems
- Application Software Packages
- Business Data Processing
- Communications and Networks
- Internet Concepts and IoT
- Multimedia and File Extensions
- Classification of Computers
- Cyber Safety and Cyber Crime
- Computer Viruses and Security
- Basic Computer Shortcut Keys
- Shortcut Keys for Windows
- Shortcut Keys for MS Excel
- Shortcut Keys for MS Word
- Computer Abbreviations Set 1
- Computer Abbreviations Set 2
- Computer Abbreviations Set 3
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