A computer is a machine that can perform multiple tasks at a single point in time. It is totally different from other machines.
If we see the example then the computer is a machine that can do multiple tasks at the same time whereas, another machine like washing machines can help to wash and dry the clothes, Juicer is used to take fruit juice out so they can perform a specific task at a time.
The computer has various parts like an Input device, an Output device, we will learn those in detail in this category.