The abacus is a computing device on which arithmetic calculations are performed by sliding counters (beads, pebbles, or flat discs) along rods, wires or lines. The instrument may have originated in ...

The Russian abacus (tchoty) is held so that counters move crosswise. It has no crossbar, and all counters in one row have the same value. Most rods have ten counters. An occasional row has fewer, to ...

We teach children to visualise the abacus in their heads, then use their fingers to manipulate the imaginary beads" ...

An abacus is an ancient tool used for counting, consisting of a framed set with rods on which balls or beads are moved. The abacus has been in existence in China since the second century BCE, although ...

An online tutorial is a self study activity designed to teach a specific learning outcome. They are usually delivered via Blackboard but can also be made available via the Internet or on a DVD. There ...

The abacus, a simple counting aid, may have been invented in Babylonia (now Iraq) in the fourth century B.C. The Antikythera mechanism, used for registering and predicting the motion of the stars ...

Canada’s Sphere Media has completed its C$24.6M ($18.2M) of UK-based distributor Abacus Media Rights. Going forwards, Abacus will be known as Sphere Abacus and act as Sphere’s sales wing.

Under ASX rules large investors and investment funds must disclose when they own more than a 5% stake in Abacus Group (ABG). However, you won't necessarily see their names in the company’s annual ...