Technology runs in my genes...

Just uploaded some pix my dad gave me of him working many many years ago on very early computers...

Here's what my dad had to say when I asked him when the pictures were taken:

About 1955. The machine is the IBM 705. What you see in the picture is 40K memory (they used ferrite core memory). The processing circuits were in other large boxes. We had 10 tons of air conditioning which was pumped under the floor to the machines and exhausted through the ceiling. IBM had maintenance personnel on site. They had a large room in which they kept spare parts. They took the machine over every morning for 1 hour (3 hours every Wednesday) for preventive maintenance. During that time, they reduced the voltage to the lowest allowable level in an attempt to make any weak part fail. They would then replace those parts. The circuits used vacuum tubes (like old radios)...thousands of them.