Facit 1111
Brief History
In 1970, Sharp and american Rockwell built the first calculator using LSI integrated circuits (Sharp QT-8 series), but the available technology did not allow to made really small equipments. The first battery-powered pocket-sized calculators in 1971-72 operates only for a few hours. In 1972, Sharp introduced the ELSI MINI (EL-801), which not oly used japanese-made state-of-the-art integrated circuits from Toshiba, but despite of high power consumption LED displays it can be operates from 4 pieces of AA batteries for 15 hours. Rechargeable battery pack were marketed for more economical applications.
A slightly modified, re-designed version were manufactured for british Dixons corporation under the name Prinztronic Micro: it can only be used with standard batteries.
After spreading CMOS technology and finishing development of reliable liquid crystal displays, first calculators with low power consumption were introduced from 1973.
Manufacturer: | Facit AB (Sweden) |
OEM: | Sharp Corporation (Japan) |
OEM model: | EL-8 |
Mfg. date: | 1971 |
Size: | 10,7×16,1×7,2 cm |
Weight (ready for operate): | 724 g |
Type: | four-function |
Capacity: | 8 digits (input/display) 8 digits (internal precision) |
Operating logic: | custom |
CPU: | Rockwell NRD2256, AC2261, DC2266B, AU2271B |
Registers: | 2 standard (with saving the pending operation) |
Features: | Ffloating-point notation |
Display: | 8+1 digit VFD (8×Itron DG10L + 1×SP8A) |
Power: | battery pack or adaptor |
Similar items