What Is a Digital Computer?

Electronic computers are divided into analog electronic computers and digital electronic computers.

Digital computer

1.Fast computing speed

2.High accuracy

3.Universal

4, with memory function and logic judgment function

5, with automatic control capabilities

The standard of the mainframe in the 1980s was a computer with a computing speed of 1 million to 10 million times per second, a word length of 32-64 bits, and a main memory capacity of 0.5-8 megabytes. Mainframes are mostly general-purpose machines and are mainly used in computer communication networks. The standard of a medium-sized machine is a computer with a calculation speed of 100,000 to 1 million times per second, a word length of 32 bits, and a main memory capacity of 1 megabyte or less. It is mainly used for management in small and medium-sized local computer communication networks. There are no strict boundaries between minicomputers and microcomputers. Common PC series machines include PC, PC / XT, PC286, VAX and other models. The structure of the microcontroller is very different. The main functional components of the above-mentioned various computers are connected together in separate forms through wires to form a complete computer system, while a single-chip computer integrates all functional components together to form a computer that is only an integrated circuit.