The mathematics collection (mechanical computing devices) consists of 250 objects from the 18th to 20th century. This consists of simple computing aids and mechanical (manual and electric) calculators. The collection was formed after World War II. The growth of the collection began in the 1960s – 80s with the rise of electronic calculators and computers when obsolete mechanical machines were discarded from use.

Among the oldest computing technology are elementary aids (abacus) and mechanical objects (Napier’s rods, slide rules and cylinders). The collection’s significant math aids include a Blitz and Cubus calculation cylinders, the Comptator , Adix and Produx adding machines, Millionär, Odhner, Brunsviga and Arithmometer mechanical calculators, Burroughs adding machines with full keyboard and Rheinmetall calculating machines.

The collection also has Czechoslovak-produced calculators from the period following World War II. These consist of a series of Nisa and Zeta mechanical and electro-mechanical machines. A Curta pocket calculator that surprised the world of calculating devices in the 1950s is a gem of the collection. This miniature machine weighing a quarter of a kilogram with the parameters of a full-value calculator can boast of being the first and last mechanical pocket calculator in the world.