ENIAC was a marvel of engineering, boasting over 17,000 vacuum tubes and 70,000 resistors, capacitors, and inductors, all interconnected by high-grade military wiring stretching over a mile and a half. It was a labyrinth of cables and components.
Programming the ENIAC was a physically intensive process, with manual setup and adjustments required for each computation. This made programming a laborious task.
ENIAC was a power-hungry behemoth, consuming about 150 kilowatts of electricity. This voracious appetite for power generated significant heat, necessitating intricate cooling systems to prevent overheating.
Vacuum tubes, the workhorses of ENIAC, were prone to failures, demanding time-consuming replacements.