Use this article as a quick reference to help you understand what many of the most common tech terms mean. The next time you read them online or hear about them in a store, you'll be prepared!

Computer abbreviation meanings

CPU

An essential part of any electronic device is its CPU, which stands for "Central Processing Unit." CPUs make calculations and allow other features to run, or operate. They are often called the "brains" of a computer.

OS

OS is short for "Operating System." An operating system allows a computer's hardware (chips, circuits, etc.) to communicate with its software. 

When you download apps and other programs, they must be compatible, or able to be used, with your device's OS.

RAM and ROM

If you are shopping for a new computer, you should pay attention to these two abbreviations.

Unlike the others on this list, these are actually pronounced like regular words instead of saying each letter individually. However, please note that "ram" also has another meaning that is not related to computers or technology.

RAM stands for "Random Access Memory," and it stores data used by documents, videos and websites. A large amount of RAM will allow your device to do many or heavy tasks without slowing down.

(By the way, Random Access Memories is the name of the very popular 2013 album by the French funk and electronic duo Daft Punk!)

Next, we have ROM, which is short for "Read-Only Memory." Unlike RAM, ROM cannot be changed; instead, it contains the basic instructions that electronic devices need to operate.

HTML

This stands for "Hypertext Markup Language." This is the language used to build the webpages we browse every day. 

HTTP

Have you ever noticed the "http" at the beginning of the web addresses in your browser's search bar? It is short for "Hypertext Transfer Protocol." If you see an "s" at the end, it stands for "Secure."

ISP

ISP stands for "Internet Service Provider." These are companies that sell access to the internet. Depending on where you live, internet service may be sold together with phone service or other digital products.

SEO

This term has become very important for businesses in nearly every industry. It stands for "Search Engine Optimization."

When you "optimize" something, you make it as good or effective as possible. For companies and individuals who want to promote themselves, good SEO can make it easier for people to find them online.

SIM card

Many people are familiar with SIM cards, but have you ever wondered what those letters stand for? It's "Subscriber Identifier Module." Mystery solved! 

SIM cards are small chips inside phones and tablets that allow them to be identified on a cellular network. They connect your device to your unique account or phone number.

Like RAM and ROM, "SIM" is pronounced as a word.

VR and AR

You may know that VR stands for "Virtual Reality," which is an environment created in a computer that appears to be real.

AR, on the other hand, stands for "Augmented Reality."

"Augmenting" something is enhancing it or making it better in some way. Instead of creating a new world, like in VR, AR adds something to our real world. 

IP

IP is short for "Internet Protocol," which is the set of rules that controls how data moves across the internet.

Even if you aren't in the tech industry, you may still hear about IP addresses, which are numbers that identify devices connected to the internet, such as phones, computers and even household appliances! 

VPN

A VPN is a "Virtual Private Network." VPNs hide your device's true IP address so your internet service provider thinks your computer is located in a different place than it actually is. They can also encrypt your data, which makes it more difficult to read and understand by anyone other than the sender or recipient.

One popular use for VPNs is "tricking" streaming services into giving access to films and television shows from other parts of the world that normally are not available.

Wrap-up

Even though we see many of these abbreviations every day, most people do not stop to think about what they mean. But now you know! Additionally, learning the individual words will help you recognize them when you see them separately from these abbreviations.

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