Cpu Flashcards
What does CPU stand for?
Central Processing Unit
Which component of the computer is considered the ‘brain’?
CPU
What is the main function of the CPU?
To carry out instructions given by software programs
True or False: The CPU is responsible for executing all calculations and logical operations in a computer system.
True
What are the two main components of the CPU?
Control Unit and Arithmetic Logic Unit (ALU)
What is the role of the Control Unit in the CPU?
To manage the execution of instructions and coordinate the operation of the other components
What is the function of the ALU in the CPU?
To perform arithmetic and logical operations on data
Which component of the CPU is responsible for fetching instructions from memory?
Control Unit
Which component of the CPU is responsible for executing arithmetic operations?
ALU
What is the clock speed of a CPU measured in?
Hertz (Hz)
What does the clock speed of a CPU indicate?
The number of cycles per second that the CPU can execute
True or False: A higher clock speed always results in better performance.
False
What is the purpose of CPU cache?
To store frequently accessed instructions and data for quick access
What are the three levels of CPU cache commonly found in modern processors?
L1, L2, and L3 cache
Which level of CPU cache is the fastest but also the smallest in size?
L1 cache
What is the purpose of the CPU register?
To store data temporarily during processing
How many registers are typically found in a CPU?
Several to dozens, depending on the processor architecture
What is the role of the instruction register in the CPU?
To hold the current instruction being executed
What is the purpose of the program counter in the CPU?
To keep track of the memory address of the next instruction to be fetched
Which component of the CPU is responsible for decoding instructions into signals for other components?
Control Unit
What is the role of the fetch-decode-execute cycle in the CPU?
To fetch instructions from memory, decode them, and then execute them
What is the purpose of the CPU fan?
To cool down the CPU to prevent overheating
What is thermal throttling in relation to the CPU?
A mechanism that reduces the CPU’s clock speed to prevent overheating
Which technology allows a CPU to execute multiple threads simultaneously?
Hyper-Threading
