Microprocessors are the chips inside computers that do the actual computation. They're often also called central processing units, or CPUs. You can find a microprocessor inside any modern device, from a laptop or desktop computer to a smart phone or smart TV. Different types of microprocessor are used in different types of computers and other devices.
Types of Microprocessor
Different types of microprocessor from different companies run specialized types of programming code. The list of commands that a microprocessor can run is known as the processor's instruction set.
One of the most common types of microprocessor is the family of chips known as x86 devices, including a line of common processors made by Intel and some chips made by their competitors, such as Advanced Micro Devices. These have a relatively long instruction set, and they're commonly found in desktop and laptop computers. Examples of chips in this family include Intel's Pentium and Xeon microprocessors and the Athlon and Opteron chips made by AMD.
Other devices use other types of microprocessor. For example, many smart phones use specialized microprocessors made by Qualcomm, such as the Snapdragon series of processors, with their own instruction sets. Apple devices use their own series of chips known as A-series processors, including the A12 and A11 line of chips found in iPhones.
If you're considering what device to buy, or even installing a processor in a computer you're building, you may need to compare different microprocessor models. Aside from choosing a brand you trust, you can also compare the stats of the processors themselves.
For example, a processor might advertise its speed in megahertz and gigahertz. Faster processors can execute more commands per second, meaning your computer will execute tasks faster. Processors may also advertise having a certain number of cores, meaning independent units within the chip that can operate in parallel, doing separate tasks simultaneously. Generally, processors with more cores work faster.
On the other hand, because speedier processors often use more electricity and generate more heat, many processors advertise the amount of energy they use. Having a more efficient processor can translate to savings on your electric bill and needing to charge the battery in your smart phone or laptop less frequently.
Other Processing Chips
In the computer world, standard microprocessors aren't the only chips capable of doing logical and mathematical operations. Lots of devices carry specialized chips.
Some of the most common are graphics processing units, designed to do the math involved in drawing graphics on a computer screen – a type of math that's also useful for applications like artificial intelligence.
Other processing chips are optimized for different types of functionality, from working with cryptocurrency like bitcoin to processing audio to handling physics simulations for applications like video games. These specialized processors aren't normally used for general-purpose applications.
- PC Magazine: Definition of x86
- Verizon Wireless: Quad What and Octa Who? A Quick Guide to Processor Lingo
- The Verge: Qualcomm Launches Three New Snapdragon Processors for Midrange Phones
- MacWorld: What to Expect From Apple’s A12 Processor
- Arrow Computers: How Do I Compare Different Processors (Dual-Core? i3? Ghz?)
- NVidia: What Is GPU Computing?
- PhysX: FAQ
- Nvidia: Audio Processing Unit