Sharp EL-8
The EL-8 from Sharp is considered to be the first electronic pocket calculator in the world to be mass-produced. It was introduced in January 1971. At 164 mm in length, 102 mm in width and 7 cm in height, the "handheld" weighed 0.72 kg.
The electronics are combined in four LSI ICs ( large-scale integration ) manufactured by Rockwell , which were first used in the Sharp QT-8D . As with this one, the keyboard consists of 15 keys, whereby the multiplication and division share one key - the decisive factor is whether the arithmetic operation is completed with or . +=−=
The display consists of eight Digitron tubes in which a number is composed of eight unusually shaped segments. Power is supplied via a 6 × AA NiCd battery pack or an external mains and charger.
The Swedish office equipment manufacturer Facit sold the device with a different housing design as the Facit 1111 .