COMPUTER ARCHITECTURE
PREPARATION TEST 2026 QUESTIONS AND
CORRECT ANSWERS GRADED A+
● What is computer architecture? Answer: The functional design and
structure of a computer system, focusing on how hardware components
work together to execute instructions.
● What does computer organization refer to? Answer: The physical
implementation of a computer system based on its architecture, detailing
how hardware components are connected and work together.
● What are the four basic functions of a computer? Answer: Data
processing, data storage, data movement, and control.
● What is the role of the control unit in a CPU? Answer: To direct and
coordinate CPU operations, interpret instructions, and manage data flow.
● What is the function of the Arithmetic Logic Unit (ALU)? Answer: To
execute arithmetic and logical operations, serving as the computational
powerhouse of the CPU.
, ● What are registers in a CPU? Answer: Small, fast storage locations
within the CPU that hold instructions, data, and addresses for quick
access.
● What is the difference between single-core and multi-core
architecture? Answer: Single-core executes one instruction stream at a
time, while multi-core can execute multiple instruction streams
concurrently, enhancing performance.
● What is the main function of a CPU? Answer: To execute instructions
and produce output through the processes of fetching, decoding,
executing, and storing.
● What is RAM? Answer: Random Access Memory, a temporary
storage that holds data while the computer is running and is lost when
powered off.
● What is the purpose of external I/O devices? Answer: To facilitate
communication between the computer and external devices, enabling
user interaction.
● What is the role of internal I/O? Answer: To manage data flow
between internal components of the computer, ensuring smooth and
efficient data transfers.
PREPARATION TEST 2026 QUESTIONS AND
CORRECT ANSWERS GRADED A+
● What is computer architecture? Answer: The functional design and
structure of a computer system, focusing on how hardware components
work together to execute instructions.
● What does computer organization refer to? Answer: The physical
implementation of a computer system based on its architecture, detailing
how hardware components are connected and work together.
● What are the four basic functions of a computer? Answer: Data
processing, data storage, data movement, and control.
● What is the role of the control unit in a CPU? Answer: To direct and
coordinate CPU operations, interpret instructions, and manage data flow.
● What is the function of the Arithmetic Logic Unit (ALU)? Answer: To
execute arithmetic and logical operations, serving as the computational
powerhouse of the CPU.
, ● What are registers in a CPU? Answer: Small, fast storage locations
within the CPU that hold instructions, data, and addresses for quick
access.
● What is the difference between single-core and multi-core
architecture? Answer: Single-core executes one instruction stream at a
time, while multi-core can execute multiple instruction streams
concurrently, enhancing performance.
● What is the main function of a CPU? Answer: To execute instructions
and produce output through the processes of fetching, decoding,
executing, and storing.
● What is RAM? Answer: Random Access Memory, a temporary
storage that holds data while the computer is running and is lost when
powered off.
● What is the purpose of external I/O devices? Answer: To facilitate
communication between the computer and external devices, enabling
user interaction.
● What is the role of internal I/O? Answer: To manage data flow
between internal components of the computer, ensuring smooth and
efficient data transfers.
