Museum of Computing

January 3, 2018

Question from E-mail

Thanks so much for talking to me during my recent phone call. Trying to contact [you] via the website is virtually impossible! As I explained, I am on the board of a new Museum of Computing which is going to be built in Lubbock, Texas. I have been asked to take charge of the Apple displays to include Apple 1, Apple ][, Apple III and Lisa and Mac. We would like to recreate the famous garage where the Apple 1 systems were assembled. We are convinced this would be very interesting to all of the visitors, especially the young ones! But there is a problem…I have no idea what the layout of the garage was! If we recreate this famous scene, we would like it to be fairly accurate. Can you help me? Here is my home address and home phone and e-mail address. Thanks in advance and waiting to hear from you!

Woz

First, the Apple I (and Apple ][) computers were entirely designed and tested and debugged in my Cupertino apartment (not the garage) and in my cubicle at Hewlett Packard in Cupertino (that ‘calculator’ division is now in Corvallis, Oregon). The PC boards of the Apple I were made in Santa Clara. As soon as they came off the production line (only 200 total were manufactured) components and chip sockets were inserted by workers and the board were wave soldered there. This was the major manufacturing step. We’d drive down and pick up a batch of boards and then drive them to the garage. We’d pay Patti Jobs and other friends $1 per board to insert all the chips from boxes of chips that we had. The garage had a single engineering workbench with a mylar top and a shelf. A monitor and transformers and keyboard, the other 3 pieces of an Apple I, were on it, as well as an oscilloscope of mine and maybe a soldering iron. I’d hook up a PC board and try it out. If it seemed to work, it would go in the ‘good’ stack. If it was bad I’d look at the microprocessor data and address pins with the oscilloscope. If I saw a missing signal it meant that a chip had a pin out of a socket. If a signal seemed like two fighting signals (halfway between high and low) it meant that two traces were shorted on the PC board. About half of the boards had such problems.

The workbench (lab table) was mounted right up to the garage door. So if you were seated at the workbench and someone opened the garage door you’d be looking straight out. We also had a small container of spare parts, like chips, in small pullout drawers. It sat on some table behind the workbench. There were no manuals or drafting tables or other design aids here. I can’t tell you much more.