The Sharp PC-1600 was a pocket computer introduced by Sharp in 1986 as a successor to the PC-1500. The PC-1600 provided compatibility with its predecessor through the use of a slave CPU that could run assembly language programs targeting the older machine. It could also switch into a compatibility mode so that programs written for the single line display of the PC-1500 could work with the four line display of the PC-1600. PC-1500 peripherals such as the CE-150 cassette interface were also supported. Technical specifications SC7852 CMOS 8 bit microprocessor, equivalent to the Z-80A, 3.58 MHz LH-5803 slave CPU compatible with PC-1500, 1.3 MHz LU57813P sub CPU, 307.2 kHz 96K ROM 16K RAM, expandable to 80K 26 column, 4 line LCD with a 5x7 character matrix 156x32 dot graphics Real time clock RS-232C interface Optical serial port Analogue interface for connection to sensors 390 g in weight with batteries Accessories CE-1600M program module providing 32K of battery backed storage CE-1600P Printer/Cassette interface CE-1600F 2.5-inch double-sided pocket disk drive providing 64K of storage per side with CE-1650F media See also Sharp pocket computer character sets References Further reading External links The Ultimate Pocket Computer Original product brochures and source for accessories Sharp PC-1600 site by Harald Richter German with sections in English and French PC-1600 PC-1600