Some Signal soldiers work on computers as part of their Army jobs. How computers work A computer is a machine that can do a series of mathematical or logical tasks. It differs from a calculator, which can do those things too, because a computer can store a program in its memory so it can repeat is operations, make logical decisions, and store and get data without a human telling it to do so. Analog computers give you data as physical, measurable quantities. Car speedometers and electrical watt-hour meters contain analog computers.
Digital computers store information that is much more complex.
Your PC at home is a digital computer. PCs, or personal computers, store information on a microprocessor. A microprocessor is a circuit that contains the arithmetic, logic and control circuits the computer needs to interpret and carry out instructions contained in a computer program. The microprocessor is combined with other microprocessors on a semiconductor base to form a computer chip. Then the microprocessor becomes the heart of your PC, also called a microcomputer. Calculators, digital watches and electronic games also contain microprocessors.