The Eniac was actually built to help the military calculate projections and how far a bullet would go, however it wasn't the first computer. It was just a computer the could remember things it had already done, the first computers were aimming systems on battleships for the U.S. Military. It shown that electronical computers were possible and we could make memory systems cappable of assisting people in their everyday lives. However this one could not belong to a person because of it's size, it took a 3-5 story builidng to hold the Eniac. Without the Eniac, the tablet, computer, phone or any other ,electronical device you're using to look at this, wouldn't be possible! So say thanks to the founders found......
Thanks to,
http://www.columbia.edu/cu/computinghistory/eniac.html
http://www.computerhistory.org/revolution/birth-of-the-computer/4/78
http://inventors.about.com/od/estartinventions/a/Eniac.htm
http://www.britannica.com/EBchecked/topic/183842/ENIAC
http://www.ushistory.org/oddities/eniac.htm
http://www.columbia.edu/cu/computinghistory/eniac.html
http://www.computerhistory.org/revolution/birth-of-the-computer/4/78
http://inventors.about.com/od/estartinventions/a/Eniac.htm
http://www.britannica.com/EBchecked/topic/183842/ENIAC
http://www.ushistory.org/oddities/eniac.htm