What is the Full Form of CPU?
The full form of CPU is Central Processing Unit.
What is a CPU?
It means central processing unit. The CPU is the main component of the computer to process instructions.
It runs the operating system and applications, and continuously receives information from users or active software programs.
It processes the data and produces output, which can be stored by the application or displayed on the screen.
The CPU contains at least one processor, which is the actual chip that performs calculations inside the CPU.
For many years, most CPUs had only one processor, but now it is common for a single CPU to have at least two processors or processing cores.
A CPU with two processing cores is called a dual-core CPU, and a model with four cores is called a quad-core CPU.
High-end CPUs can have six (six-core) or even eight (eight-core) processors. A computer can also have multiple CPUs, and each CPU has multiple cores.
For example, a server with two quad-core CPUs has a total of 12 processors.
Although the processor architecture varies by model, each processor in the CPU usually has its own ALU, FPU, registers, and L1 cache.
In some cases, a single computing core may have its own L2 cache, although they may also share the same L2 cache.
A single front-side bus routes data between the CPU and system memory. The terms CPU and processor are often used interchangeably.
Some technical charts even label individual processors as CPUs. Although this statement is not wrong, it is more accurate (and easier to confuse) to describe each processing unit as a CPU, and each processor in the CPU is a processing core.
History of CPU
Early computers like ENIAC had to be physically rewired to perform different tasks, so these machines were called fixed program computers. The term central processing unit has been used since 1955.
Since the term CPU is usually defined as a device that executes software (computer program), it can correctly be the first device to be called a CPU.
They appeared with the advent of stored-program computers. J. Presper Eckert and John William Mauchly already existed in the ENIAC design, but were initially omitted so that it could be completed earlier.
On June 30, 1945, before the birth of ENIAC, the mathematician John von Neumann published an article entitled First Draft of the EDVAC Report It was the blueprint for a stored-program computer that was finally completed in August 1949.
EDVAC is designed to execute a variety of instructions (or operations). The important thing is that programs written for EDVAC must be stored in high-speed computer memory, not specified by the computer's physical wiring.
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