The first mechanical computer was the Difference Engine built in 1822 by Charles Babbage, considered as the "father of the computer." Between 1847 and 1849, he made an improved version of his first model, which he called Difference Engine No. 2. However, the machine was not transformed into a full-scale functional device due to lack of funding.Know More
The Difference Engine did not resemble the modern computers of today. It was massive and consisted of up to 25,000 components. The machine weighed 15 tons and was 8 feet tall.
In 1991, the London Science Museum completed the Difference Engine No. 2 to commemorate the bicentennial of Babbage's birth year.Learn more about Computer History
The Z3, designed in Germany by Konrad Zuse and completed in 1941, is widely considered to be the first programmable computer. While later computers were significantly faster, the Z3 laid the groundwork for further development.Full Answer >
The GRiD Compass — the first real laptop with a flat screen and folding clamshell construction — was made in 1982 by the GRiD Systems Corporation of Fremont, California, having been designed in 1979 by British inventor Bill Moggridge. Although the concept of so-called "portable computers" had been around for much longer, including Alan Kay's Dynabook tablet PC in 1968, they existed only as plans awaiting the requisite technologies for realization.Full Answer >
The first functional computer was made in 1936 by Konrad Zuse in his parents' living room in Germany. It was called the Z1 and was the first freely programmable, electro-mechanical computer.Full Answer >
Ada Byron wrote a plan giving suggestions on how the Analytical Engine, created by Charles Babbage, could be used to produce a table of the Bernoulli numbers. In 1979, the U.S. Department of Defense developed a software program and named it "Ada" in honor of her contribution in computing.Full Answer >