How much did the first commercially used computer weigh?

Answer 1

Before you can get an answer to this you need to determine what machine you identify as the "first computer".

1. Charles Babbage's mechanical Analytical Engine (1830s) was the first machine conceived with the abilities of what would now be called a digital computer. But as it was never built it weighed nothing! Had it been built it would have completely filled a very large factory building of the time and probably have weighed hundreds of thousands of tons!
2. Many analog computers were built, probably the best known was Vannevar Bush's mechanical differential analyzer (1929) built at MIT. These analog computers (both mechanical and electronic) varied in weight from several hundred pounds to several tons.
3. The Atanasoff-Berry Computer (1942) was the first electronic digital computer. It was the size of a desk and weighed about 700 pounds.
4. The British code breaking machine Colossus (1944) was the first programmable electronic digital computer. Ten of these machines were built during WW2 and as some included additional features not present in all of them, the exact weight varied.
5. The ENIAC (1945) was the first general purpose programmable electronic digital computer. It weighed more than 27 tons.
6. The Manchester Baby (1948) was the first working prototype of all modern electronic digital computers. It weighed almost 1 ton.

There are many other computers that could be considered "firsts" for various different reasons. Finding weights for many early computers is difficult as there is frequently little or no remaining documentation and these machines frequently went through revisions and improvements that expanded them as the developers thought of better ways to do things, thus usually increasing their weight over time.

Answer 2

The first electronic computer was named Colossus and weighed approximately one ton.

Answer 3

The first computer ever invented weighed 30 short tons!!!!!!!!!!

Answer 4

The GRiD Compass 1101 weighed approximately 10 lbs, 12 oz (4.8 kg).

Answer 5

im guessing somewhere in between 10-20 lbs

Answer 6

The first electronic computer was built in 1942 and weighted more than 700 pounds and was about the size of an office desk

Answer 7

The Atanasoff-Berry Computer (ABC), the first electronic digital computer weighed about 700 pounds.

Answer 8

It weighed 50 tons. Click the link.

Answer 9

1234tons