The computer was invented centuries ago using the idea of ​​the abacus which for calculation reasons. Until today, computers were still developed to satisfy the will of the new generations who want the computer to have a simpler and faster function in processing information. The style and size of the computer is also important so that the customer can satisfy the look and size of the computer. Since World War II, computers have already developed their technology, but the question is asked from 1945. Von Neaumann is the responsible person who designed the Discrete Variable Electronic Automatic Computer (EDVAC) in the year 1945, equipped of a memory capable of containing both a stored program and a stored program. as data. The computer can be stopped at any time and then resumed using the stored memory technique, as well as conditional control transfer and increased computer programming versatility due to this development. The key element of its architecture is the computer processing unit that allows all computer functions to be coordinated through a single source. In 1951, the UNIVAC (Universal Automatic Computer) takes advantage of this progress and predicts the winner of the 1952 American presidential election. That once characteristic of the computer is the fact that the operating instructions are prepared to order for the specific task. Every computer has a different binary code program called machine language that tells it how to work. This made the computer difficult to program and limited its versatility and speed. Other distinctive features were the use of vacuum tubes and magnetic drums for data storage. The invention of the transistor in 1948 replaced the large, bulky vacuum tube in televisions, radios, and computers, but it wasn't until 1956 that the transistor was put into computers. So the size of the computer... is half the paper... the 1.5GHz Pentium 4 processor. This processor keeps increasing the value up to 2.2GHz and so on. Instead of just focusing on the fastest processor, they also improve the processor, for example Intel releases the first desktop with dual core processor in 2005. The computer has also developed from desktop to laptop then now to tablet PC. Microsoft was the first to introduce this tablet PC. The computer industry also continues to develop the graphics system so that the user can experience an image almost similar to reality. They make it keep transforming from 2 dimensions (2D) to 3D and up to now it has increased up to 6D. User can purchase the computer which is easy to use, available in many sizes and with better features. The community can buy the computer as it is affordable to buy nowadays. Nowadays, the education system also uses technology in teaching as teaching aids.