Pääprosessoreita

Pääprosessoreita, commonly known as Central Processing Units (CPUs), are the primary components of a computer responsible for executing instructions. They are often referred to as the "brain" of the computer. A CPU fetches instructions from memory, decodes them, and then executes them, performing calculations and logic operations. The speed and performance of a CPU are determined by factors such as clock speed, number of cores, and cache size.

Modern CPUs are highly complex integrated circuits containing billions of transistors. They are designed with a hierarchical memory system, including registers and cache memory, to speed up data access. The instruction set architecture (ISA) defines the set of commands a CPU can understand and execute, with x86 and ARM being the most prevalent ISAs today. CPUs are a critical part of virtually all electronic devices, from personal computers and smartphones to servers and embedded systems. Their continuous development drives advancements in computing power and efficiency.