Computer hardware consists of the physical components of your computer: the parts, devices, buttons, and ports that you can touch and physically manipulate. Computer hardware comes in two basic varieties.
1.External hardware
2. Internal hardware
External Hardware
External hardware, also known as peripherals, refers to hardware that connects to the outside of the computer case. The monitor, keyboard, and mouse are the most common external hardware devices. The printer and speakers are also popular peripherals. You can connect external hardware to your computer through the computer ports.
Internal Hardware
Internal hardware refers to hardware that resides inside the computer case. This includes the central processing unit (CPU) the brains of the computer, memory chips that are used for temporary data storage while you work, disk drives that are used for long-term storage, and circuit boards that supply many of the ports on the back of the computer case.
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