Pocket computer
A pocket computer was a 1980s-era user programmable calculator-sized computer that had fewer screen lines,
 and often fewer characters per line, than the Pocket-sized computers introduced beginning in 1989. Manufacturers included Casio, Hewlett-Packard, Sharp, Tandy/Radio Shack (selling Casio and Sharp models under their own TRS line) and many more. The last Sharp pocket computer, the PC-G850V (2001) is programmable in C, BASIC, and Assembler. An important feature of pocket computers was that all programming languages were available for the device itself, not downloaded from a cross-compiler on a larger computer. The programming language was usually BASIC. See also 
 Formula calculator
 Mobile device
 Programmable calculator
 Smartbook
 Tandy Pocket Computer

References

External links 

 Pocket Computer Museum
 Soviet Calculators Collection (English)
 www.calculators.de – Museum of Pocket Calculating Devices
 List of pocket computers manufacturers
 http://www.angelfire.com/planet/geraldk/Gdkpc4.htm
 http://oldcomputers.net/