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Macro Systems has been serving the Metro Washington, DC area since 1997, providing IT Support such as technical helpdesk support, computer support and consulting to small and medium-sized businesses.

Examining the term CPU

Examining the term CPU

A computer is a complex device and needs something to help it “think.” Because of this responsibility, the component that serves this purpose is perhaps one of the most important of all a computer’s pieces. Known as a CPU (or central processing unit), this tiny chip is essential to the computer’s function. Let's examine CPUs a little closer below.

What Does a CPU Accomplish?
A CPU sits atop the motherboard and decodes the instruction it receives from the RAM (Random Access Memory) before sending these instructions to the appropriate components of the computer. Whether you’re accessing a document from your computer’s local memory or starting up the operating system, your CPU is playing a pivotal role.

This is not to say that a better CPU necessarily translates into superior performance. What it will do is help your programs, applications, and system-as-a-whole run faster. Other positive effects require other components to be upgraded.

How Does the CPU Work?
The CPU has worked basically the same way since it was first introduced. Its function can be split into three distinct tasks: fetch, decode, and execute.

  • Fetch - Initially, the CPU receives its instructions from the RAM in the form of a series of numbers. These instructions are small pieces of the greater operation that the computer is performing. As the CPU receives each instruction, it is stored in an Instruction Register.
  • Decode - When the instruction is stored, it is sent to a specialized circuit called the instruction decoder. The decoder translates the instruction into actionable signals to the rest of the CPU.
  • Execute - In the end, the instruction is forwarded to the part of the CPU that can enable it to be completed. This final version is also written to the memory on the CPU register, so it can be quickly accessed later.

Choosing Your Next CPU
If you’re thinking about getting an upgrade, switching your CPU for a better one can be an effective way to ugrade some aspects of your computer’s performance. A rule of thumb to remember: the more cores, the better. While the earliest CPUs only had one core, the latest go all the way up to 18 cores and beyond. Most modern PCs have two to four cores.

Naturally, you should also consider other factors when selecting a CPU. For example, you may have heard the terms “32-bit” or “64-bit” tossed around in reference to CPUs. This determines the size of the data sample that the processor can handle. Frequency is another variable you should be cognizant of, as it refers to the operating speed of the processor itself. It isn’t outside the realm of possibility for a faster dual-core CPU to outpace a slower quad-core. On top of all of this, your computer’s motherboard might only support a limited number of CPUs on the market.

Need Help? Call Macro Systems
For assistance and consultation into upgrading your systems, the reliable technicians at Macro Systems are here for you. Call 703-359-9211 for assistance.

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