Brother 821L

Manufacturer:	Brother Industries Ltd. ()
Mfg. date:	1979
Size:	6,5×10,9×0,8 cm
Weight (ready for operate):	n.a.
Type:	four-function
Capacity:	8 digits (input/display) 8 digits (internal precision)
Operating logic:
CPU:	Hitachi HD43337
Registers:	2 standard (with saving the pending operation) 1 constant (with saving the pending operation) 1 memory (with aritmetic)
Features:	%calculation with percent +/-change sign (direct entry of negative numbers) Ffloating-point notation Sqrsquare root
Display:	8+1 digit
Power:	2×LR44 gombelem