Casio AS-L

The Casio AS-L is the first Casio machine to use true LSI (Large-Scale Integration) technology.The AS-L is a much more refined design, with a highly integrated (for the time) four-chip microcoded CPU versus the small- and medium-scale hardwired logic of the 121-A. The AS-L provides a full function calculator, as opposed to the rather crippled implementations on the 121-A and Lektronic.