MITS 1440 Desktop Calculator
Image Courtesy Steve Shepard, April 1973 Radio-Electronics Magazine
MITS' second desktop electronic calculator. Introduced in early 1973, utilizing
an extension of Electronic Arrays (EA) six-chip LSI calculator chipset, extended
to provide additional functionality versus the EA chipset used in MITS' first
electronic calculator, the 816. Additional functions include reciprocal
(1/x), square root, and percent calculations, and added an
accumulator-stype memory register.