A microcomputer is a tiny computer that can fit on a desk or even be held in one's hand. It has a central processor, also known as a CPU, that takes care of all the instructions given to it. A CPU is sort of like the "brain" of the computer. It receives instructions from the computer program that is running, interprets them, and then performs the necessary operations.
These tiny computers often have a built-in keyboard and screen so that you can interact with them, and they usually come with a selection of pre-installed software that you can use to get started. They can also be connected to other devices, such as printers, and to the internet.
Microcomputers are very popular because they are affordable, easy to use, and versatile. They can be used for many purposes, such as playing games, accessing the internet, creating documents, and even controlling other devices. They are also very popular in the education sector, as they can be used to teach programming and other computer skills.