A computer is a machine that manipulates data according to a list of instructions.
The first devices that resemble modern computers date to the mid-20th century (1940–1945), although the computer concept 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.
Internet a computer network consisting of a worldwide network of computer networks that use the TCP/IP network protocols to facilitate data transmission. The Internet is a worldwide, publicly accessible series of interconnected computer networks that transmit data by packet switching. A worldwide network of computers that can be accessed via the TPL computer network. The Internet allows local computer users to find and use information resources on computers of other academic institutions, research institutes, private companies, government agencies and individuals.