replaced by the HP 48 series of calculators, which grew from the menu-driven RPL programming language interface first introduced in these HP-28 series. Two...

HP Inc. is an American multinational information technology company headquartered in Palo Alto, California, that develops personal computers (PCs), printers...

the HP 48 calculators are themselves strongly influenced by other calculators in the HP line, most of all by the HP-18C and the HP-28 series. The HP 48SX...

replaced with a coil spring setup. It weighed 1,350 kg (2,980 lb), with a 37 hp (28 kW; 38 PS) MeMZ-967A engine, and was able to pull a 300 kg (660 lb) trailer;...

C/7 Handcross but retrospectively became the H.P.28 Handcross after the introduction of the familiar H.P. type numbers in about 1927. The Handcross was...

HYEW-lit PAK-ərd) or HP, was an American multinational information technology company headquartered in Palo Alto, California. HP developed and provided...

is a French programmer, mostly known for reverse engineering the HP-28 and then the HP 48 series of calculators, and writing multiple articles and books...

In computing HP Roman is a family of character sets consisting of HP Roman Extension, HP Roman-8, HP Roman-9 and several variants. Originally introduced...

The Fiat 28-40 HP, also known as the Fiat Targa Florio Corsa, is a Grand Prix racing car manufactured by Fiat in 1906 and 1907. From 1907 through 1910...

20 hp (15 kW) 4110, 18 hp (13 kW) 4010, 20 hp (15 kW) 4115, 28 hp (21 kW) 4210, 32 hp (24 kW) 4310, 35 hp (26 kW) 4410, 39 hp (29 kW) 4510, 44 hp (33 kW)...