What Is Computer Hardware?

What Is Computer Hardware?

Whether you're planning to redo your kitchen or simply want to replace cabinet knobs, it's easy to find high-quality options in a wide variety of finishes, sizes and prices. There are hardware-focused clearinghouses that offer discounted options or a more curated selection, as well as traditional home improvement stores with a large inventory. Home Depot, Lowe's and Target are popular destinations for finding the right hardware for your project. Those seeking something unique should try Etsy, which is known for its collection of handcrafted items, or smaller sites that specialize in one type of hardware, such as MyKnobs and Cabinet Parts.

Computer hardware consists of any physical component that makes up a computer system, including the case, central processing unit (CPU), random access memory, monitor, mouse, keyboard and computer data storage devices. Some hardware components are external to the case, such as a printer or scanner. Computers are the most common type of computer hardware, but the term can also be applied to any electronic device that uses microchips, such as a television or telephone.

Other types of computer hardware include hard disk drives, optical disc drives and persistent storage, such as flash or tape drives. Persistent storage maintains data even when the device is turned off, which is why it's considered nonvolatile. Hardware is also used in some office automation systems, such as word processing and spreadsheet software.

Most hardware is designed to operate with software, although some devices do not require it. The most basic pair of headphones, for example, do not need software or instructions because they simply pass audio from a computer to your ears. The other extreme is a webcam, which requires both hardware and software to function. Most hardware devices communicate with the software in the computer using firmware, which ties the two together and helps a program know how to interface with it.

Hardware upgrades are performed to improve the performance of existing hardware or add new capabilities to a device. This can include adding a faster CPU, more RAM or an improved graphics card. A new video card can give the computer the ability to handle more complex programs or higher resolution images.

The most critical piece of computer hardware is the motherboard. It sockets directly into the CPU, and this is where all the other parts connect to it. It is like the brain of a computer, and it handles everything that the computer does. This is why it is so important to make sure that the motherboard is seated correctly, and all other components are connected securely to the mother board.

The most common way to purchase computer hardware is to shop online. This allows you to get the best prices from multiple vendors and compare features and specifications. Many sites will also have videos that show how to install the different components, which can be helpful for those who are not familiar with computer hardware. You can also find a number of computer retail and repair stores in your area that sell hardware.