AddUp: multi-purpose calculator/converter for finance and science. Date and time, statistics, bit functions, numeric bases, complex numbers, random numbers. Convert units: meters inches feet yards miles centimeters metres grams ounces pounds kilograms liters pints quarts gallons Celsius Fahrenheit Kelvin Rankine

Manufacturer of Ergonomic Keyboards based in Surrey UK providing specilised keyboards for people with keyboard related pain or disability with ergonomic 3D two hand and left or right single handed or mouth head stick or expanded with metal shield.