#PDF schematics of the #LGP-30 #hardware. #history
on 02017-12-02#PDF of a #paper on the #LGP-30 by Stan Frankel, including the logical equations that govern its operation. A CPU in 44 lines of code, comparable to the #J1, but slower and bit-serial. #hardware
on 02017-12-02The #LGP-30, selling for US$47000 in 1956, was one of the first computers designed for a single person; it used a drum memory (with some tracks used as delay lines for its registers) and was bit-serial, with 15 flip-flops, 113 vacuum tubes, and 1450 diodes. Its logic design is fully documented in its hardware manual on Bitsavers. It’s famous as the computer from The Story of Mel. #hardware #history #smallisbeautiful #bootstrapping
on 02017-03-22