There are three case size categories, though the computer cases themselves have varying dimensions. Computer Cases House and Protect Computer Components Make sure to get a cooling fan that can keep up. Pair motherboards with CPUs of the same generation for the best performance, and to ensure they can work together. The CPU motherboard also determines the type and amount of Random Access Memory (RAM) you can use.

Depending on the motherboard, you can add video and graphics cards, a Solid State Drive (SSD) and more. The CPU connects to the motherboard, and provides Peripheral Component Interconnect express (PCIe) slots to connect devices. CPU Motherboards Offer PCIe® Slots and a Home for the CPU

The more cores or threads a computer's CPU processor has, the better performance it will provide, so graphic designers and video editors may need a high-end six or eight-core model. Gamers will likely want a quad-core processor, though as games advance, six and eight-core processors become more attractive options. Typical users can skate by with a basic processor for surfing the net and checking email. It will also determine what you can do with the computer. When building a new computer or upgrading an old one, focus on the computer's Central Processing Unit (CPU) first, as it defines most of the components a computer can use.

Computer CPU Processors Provide Processing Power It’s important to choose computer components that can work together to satisfy your needs. They determine the capabilities and features of a computer, as well as its power and processing speeds. Computer components like the CPU, motherboard, computer case, RAM and drive are the core of a computer.

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