CENTRAL PROCESSING UNIT Flashcards
What does ‘CPU’ stand for?
A) Central Processing Unit
The CPU is the main part of the computer that carries out instructions and processes data.
Which component of the CPU is responsible for performing arithmetic and logical operations?
B) Arithmetic Logic Unit (ALU)
The ALU performs all arithmetic and logical operations within the CPU, such as addition, subtraction, and comparisons.
Which of the following is a measure of a CPU’s clock speed?
A) Hertz (Hz)
The clock speed of a CPU is measured in Hertz (Hz), which indicates the number of cycles the CPU can perform per second.
Which of these is a feature of modern CPUs that allows them to execute multiple instructions simultaneously?
A) Hyper-Threading
Hyper-Threading is a technology that allows a single CPU core to execute multiple threads simultaneously, improving performance.
Which component of the CPU coordinates the activities of all other computer components?
C) Control Unit (CU)
The Control Unit manages and coordinates all the activities within the CPU, including fetching and decoding instructions.
What is the purpose of the CPU cache?
A) To store temporary data and instructions for quick access
The CPU cache is a small, fast memory location that stores frequently accessed data and instructions to speed up processing.
What is a ‘core’ in the context of a CPU?
A) A single processing unit within the CPU
A core is an individual processing unit within the CPU, and modern CPUs can have multiple cores to handle more tasks simultaneously.
Which of the following best describes ‘overclocking’ a CPU?
B) Increasing the CPU’s clock speed beyond its rated specification
Overclocking refers to running the CPU at a higher clock speed than it was designed for, which can increase performance but may also lead to overheating.
Which CPU architecture is commonly used in modern smartphones?
B) ARM
ARM architecture is commonly used in mobile devices like smartphones due to its power efficiency and performance.
Which of the following is NOT a part of the CPU?
C) Hard Drive
The hard drive is not part of the CPU; it’s a storage device used to store data permanently, unlike the CPU, which processes data.
What does the term ‘multithreading’ refer to in CPU technology?
B) Executing multiple threads or sequences of instructions simultaneously
Multithreading allows a CPU to execute multiple sequences of instructions (threads) simultaneously, improving performance in multitasking environments.
Which of the following factors does NOT typically affect CPU performance?
C) GPU type
The type of GPU (Graphics Processing Unit) does not directly affect CPU performance, as the CPU and GPU handle different tasks within a computer system.
