What is the working process of computer?

In reality a computer is an electronic calculating, storage and display device that can only calculate answers or store information using 1's and 0's (Ones and Zeroes) and no other numbers! That is the reason behind the RAM-sizes, 1024, 2048 etc... But computer system designers are quite clever at concealing that fact, giving todays computers almost a 'real, lifelike' feeling.