Upgrading the Memory

Apple I board

Note the bread board area at the left of the top-most blue capacitor.

Apple I - breadboard area

The 74153 and 74139 chips on the bread board area on the Apple 1 computer, as mentioned on the next page.

Apple I - memory

The 4K chips are on the left and the newer 16K chips are on the right.

Apple I - memory, bottom