What Is A Processor?

The central processor unit (CPU) is often call the computer’s brain. It is one of many processing units but arguably the most important. The CPU executes calculations, actions and programs.

In older computers, these functions were spread across multiple processors. However, manufacturing and design improvements mean that the entire processor fits on a single chip. For this reason, processors are sometimes call microprocessors.

These smaller sizes have allowed us to reduce the size of all-in-one computers and have thinner and lighter laptops. These powerful processors are also crucial for the performance of your smartphone.

What Is A Processor Use For?

Since the first processors were released, many improvements have been made over the years. Despite this, the primary function of the CPU remains the same and consists of three stages; fetch, decode and run.

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As you might expect, research involves receiving instruction. The instruction is represented by numbers and transmitted from RAM to the CPU. However, each education is only a tiny part of an operation, so the CPU wants to know which instruction comes next.

The current instruction address is held through a program counter (PC). The PC and the instructions are then place in an instruction register (IR). Then the PC length is increase to point to the address of the next instruction.


Once an instruction remains fetched and stored in the IR, the CPU passes the instruction to a circuit called an instruction decoder. Then, it converts the instruction into signals given to other CPU parts for action.


In the final stage, the decode instructions are sent to the appropriate parts of the CPU for completion. The results are typically written to a CPU register where later instructions can reference them. Think of it as the memory function of your calculator.

What Are Multi-Core Processors?

Early computers had only one processor core, so the processor was limit to processing one set of instructions at a time. For this reason, these old computers were relatively slow and took a long time to process data.

Over the years, manufacturers pushed single-core processors to their limits, so they started looking for other ways to improve processor capabilities. For this reason, we now have multi-core processors, with terms such as dual-core, quad-core and octa-core often adorning PC marketing materials.

However, they are not as complex as they seem at first glance. For example, a dual-core processor is just two separate processors on a single chip. Instead of completely redesigning the processor, companies improved the manufacturing process to improve performance.

Understanding Cpu Specifications

Understanding how a CPU works, especially when knowing the leading brands and ranges. However, there are plenty of options with similar high-end specs.

To help you compare models effectively, consider a few additional, more detailed specifications. It will help you decide between processors when it’s time to invest in a new, cutting-edge processor for your computer.

The Brains Of The Operation

The processor is probably the most critical component of your computer. It performs all the secondary tasks with computers, and the other portions are mainly for CPU support. Although we’ve follow the same guiding principles for decades, notable improvements have been made, such as adding more cores and using Hyper-Threading.

Together they make our computers, laptops, tablets, smartphones and connected devices more powerful and eventually more valuable. However, there are many upgrades you can get kind to your current PC to modernize it and improve performance.