Digi-Comp II
The Digi-Comp II was a toy computer invented by John "Jack" Thomas Godfrey (1924–2009) in 1965 and manufactured by E.S.R., Inc. in the late 1960s, that used 1⁄2 inch (12.5 mm) marbles rolling down a ramp to perform basic calculations.
The Digi-Comp II was a toy computer invented by John "Jack" Thomas Godfrey (1924–2009) in 1965 and manufactured by E.S.R., Inc. in the late 1960s, that used 1⁄2 inch (12.5 mm) marbles rolling down a ramp to perform basic calculations.
The Digi-Comp II was a toy computer invented by John "Jack" Thomas Godfrey (1924–2009) in 1965 and manufactured by E.S.R., Inc. in the late 1960s, that used 1⁄2 inch (12.5 mm) marbles rolling down a ramp to perform basic calculations.