How many transistors did the ENIAC computer have?

Answer 1

None, the transistor did not yet exist. It was built with vacuum tubes and had roughly 18,000 of them.

When a project was done to recreate ENIAC on a chip, it took about 180,000 transistors. But you have to realize that the vast majority of these transistors are not active processing transistors, but are just switches to simulate the plugging in of the program cables into different connectors on the various panels. Only one wafer of ENIAC on a chip was ever made, it needed a PC to translate a cabling diagram to internal switch settings and load the settings into the chip. The PC was a more powerful computer than ENIAC. Most of the ENIAC on a chip devices never saw use, they went to museums or computer history collectors.

Answer 2

The ENIAC has 17,468 vacuum tubes. These tubes were the first technology that made computers function. Modern computers do not use this technology.

Answer 3

Just under 18,000 tubes, mounted on 40 racks.

Answer 4

0 - it used roughly 2000 valves. It was made in GCHQ, 11 of them were made from 1943 to 1945, to crack the German Lorenz teletype code.

Answer 5

17468 or 18000