WOW MACHINE MANIPULATE DATA

A computer is a machine that manipulates data according to a list of instructions.

The first devices that resemble modern computer date to the mid-20th centuri (around 1940 - 1945), although the computer concep and various machines similar to computers existed earlier. Early electronic computers were the size of a large room, consuming as much power as several hundred modern personal computers.

1. Modern computers are based on tiny integrated circuits and are millions to billions of times more capable.
   
2. Today, simple computers may be made small enough to fit into a wristwatch and be powered from a watch battery. Personal computers, in various forms, are icons of the Information Age and are what most people think of as "a computer"; however, the most common form of computer in use today is the embedded computer.
   

The ability to store and execute list of instructions call programs mekes computers extremely versatile and distinguishes them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore, computers with capability and complexity ranging from that of a personal digital assistant to a supercomputer are all able to perporm the same computational tasks given enough time and storage capacity.