60+ years

From Wikipedia:

[28th of July] 1947 – ENIAC, the world's first general-purpose electronic digital computer, was turned on in its new home at the Ballistic Research Laboratory at Aberdeen Proving Grounds, remaining in continuous operation until October 2, 1955.

(Ok, it was finished some time before)

There has been some developments in computer technology since then.

--
Pibbur Dragon ( -==UDIC==-)
d++ e++ u++ 4567'!S'!89! a52
"- Luce, pater tuus sum"
"- Minime! Minime!"
.