Parts of a Computer

A RAM and a MotherBoard

what is a RAM?

A RAM (Random-access memory) is a form of computer data storage. A RAM device allows data items to be read and written in roughly the same amount of time regardless of the order in which data items are accessed.
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this video will show you what a ram is and how it works.
Video - What Does Memory (RAM) Do?

what is a motherboard?

The motherboard is a printed circuit board that is the foundation of a computer, located at the bottom of the computer case. It allocates power to the CPU, RAM, and all other computer hardware components and allows them to communicate with one another.
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this video will explain in more detail what a motherboard is.
North Bridge and South Bridge on Your Motherboard Explained