• Development of interactive 3D models animated for
    "Computer history" Virtual Reality Experience.
  • Photo: From the IBM 608 Calculator Manual of Operation, Form 22-6666-1 (1957).
  • Developed in the mid-1950s as part of IBM's Modular Accounting Calculator (MAC) program, the IBM 608 is a transistorized version of the 604 that "combines the newest advances in electronics to perform the mathematical operations of addition, subtraction, multiplication, and division. It uses transistors, magnetic core memory and printed card circuits to perform these functions upon factors punched in IBM cards ... The 608 operates on transistors – tiny germanium devices no larger than a paper clip – without using a single vacuum tube. Magnetic cores, which make up the memory of the machines, will retain stored information on a normal power shut-down. This is the first known use of transistors and cores together in a commercial computer. These components save valuable office space by reducing computer size 50 percent, and reduce power requirements and heat 90 percent over a comparable vacuum tube model ... The standard machine contains forty 9-digit words of magnetic core storage, a complement of 80 program steps, and an 18-position accumulator." Transistor circuits were packaged in standardized modules -- Standard Modular System (SMS) technology.
  • Photo: From the Photographic Negative  IBM 608 Transistor Calc  c1956
  • Major Lennox Lohr and Thomas Watson, president of IBM, examining the new IBM transistor calculator. It was the first all-transistor calculator offered to businesses. The machine could compute 9300 checks per hour. The photo was taken at the Museum of Science and Industry in Chciago, December 12, 1956.
  • "IBM 608 Calculator"
    3D Design, Lowpoly 3D model development for VR app.
    Commissioned work.
    September 2015 - Marco Romero