The soroban (算盤, そろばん, counting tray) is an abacus developed in Japan. It is derived from the ancient Chinese suanpan, imported to Japan in the 14th century...

processor. The console typewriter, known as the Computeriter, was provided by Soroban Engineering. It is an adapted IBM Model B Electric typewriter mechanism...

speed in this way. For example, in the Flash Anzan event at the All Japan Soroban Championship, champion Takeo Sasano was able to add fifteen three-digit...

indicate the empty column on the abacus. In Japan, the abacus is called soroban (算盤, そろばん, lit. "counting tray"). It was imported from China in the 14th...

text, the 1627 work called Jinkōki. The work dealt with the subject of soroban arithmetic, including square and cube root operations. Yoshida's book significantly...

A Japanese man writing in a ledger with the help of a soroban (abacus). Meiji period, 1914...

configuration of the Roman abacus is comparable to the modern Japanese soroban, although the soroban was historically derived from the suanpan.[citation needed]...

heaven beads and five earth beads. If one compares the suanpan to the soroban which is a 1:4 abacus, one might think there are two "extra" beads in each...

Iran Mental abacus; 暗算, Japanese mental calculation way by imagination of soroban (算盤) A type of Japanese amulet, called omamori, used by pregnant women...

least significant. Many versions of the abacus, such as the suanpan and soroban, use a biquinary system to simulate a decimal system for ease of calculation...