part of the computing
what in side
here is a video on ram and how much do you need
RAM - How Much Do You Need? Testing with 128GB of ECC
cpu
the CPU is the brains of the computer where most calculations take place. In terms of computing power, the CPU is the most important thing in the computer..
heres is a video on cpu
i hope this will help you
Understanding the CPU for beginners
motherboard
All of the computer hardware in your computer connects to the motherboard. Your computer processor processor, expansion cards and memory chips must all be compatible with slots and sockets on the motherboard. Whether you are building a new computer or upgrading your old machine, you will need to match computer hardware, like your processor and video card, to the motherboard you've chosen and vice versa.