Computers are essential to life as we know it today. They are everywhere, but just who invented them? The computer is something that has evolved from many different designs and inventions, developed over time by various people over many years.

A mechanical calculator was built in Germany in the 1930’s. This was considered the first binary computer and was used to do mathematical calculations. It was refined by the 1940’s to use old movie film to store programs and data; the first not to use paper tape or cards. A 1941 version had a memory of 64 words.

What were referred to as personal computers from then through the 1950’s and 1960’s were able to do mathematical calculations. They weren’t able to do everything like the computers of today, but were sophisticated for the time. Their concept and the ideas of their builders were still visionary nonetheless. The different types that appeared throughout the time period featured switches and dials built into bulky large boxes.

The paperclip computer was a device in the late 1960’s based on a book that described a working computer built out of homemade supplies. Programs were stored on a magnetic drum and the device had units for input, output, control, and arithmetic. The main units of this system correspond to most modern digital computers, even though the machine looked nothing like a home computer.

Machines that began to take on the appearance of modern PCs in the early history of computers began to appear in the 1970s. The first successful mass produced computer was made by Apple in 1977, while IBM and Microsoft developed several computers in the 1980’s. Several entered the mainstream, such as Atari, as computerized video games became a cultural phenomenon, but it is also impossible to leave out the Commodore 64, since it was one of the most popular individual computer types on the market.

The reliance on more powerful gaming systems, as well as word processors, secured the high demand for better computers. Today, there are computers everywhere and inside just about anything electronic.