What is Computer? A computer is a programmable machine that receives input, stores and manipulates data, and provides output in a useful format.While a computer can, in theory, be made out of almost anything (see misconceptions section), and mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). Originally, they were the size of a large room, consuming as much power as several hundred modern personal computers (PCs). Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space. Simple computers are small enough to fit into mobile devices, and can be powered by a small battery. Personal computers in their various forms are icons of the Information Age and are what most people think of as "computers". However, the embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are the most numerous.History of computingThe first use of the word "computer" was recorded in 1613, referring to a person who carried out calculations, or computations, and the word continued to be used in that sense until the middle of the 20th century. From the end of the 19th century onwards though, the word began to take on its more familiar meaning, describing a machine that carries out computations. Industries Technical Machines.CNC-Computer Numiracally Controlled. As the industrial technician, you will among other things, to make machine parts of metal. Parts can either be formed on a lathe or sign on a computer. You'll work with the latest machinery and production methods in the iron and metal industry. As the industrial technician, you work for example in the manufacture of marine engines, industrial robots, and learn to handle computer-controlled machines. The work requires high concentration and manufacturing, a fraction of a millimeter make all the difference. Here is the dream job for you that will combine the craftsmanship skills with creative ideas and great precision. Industrial engineer has been an important person through iron and machinery industry history. But the name is new. Earlier he called a machinist.