The BW-20 (commonly called the "WordPal20") was announced in 1981 as Hitachi's first word processor.
- 12-inch display, two 5-inch FDDs
- The system was equipped with two types of input -- tablet and 2-way -- so the user could select a system suiting their ability and preference. The 2-way system was a method developed independently by Hitachi, and enabled high-speed input of 200 characters/minute.
- 35 character/second wire dot printer capable of handling a wide range of paper sizes (A3-B6)
- Beautiful documents were achieved by developing fonts specifically for word processors.
- The PALCALC1 document system was available as an option, and made it easy to perform spreadsheet calculations, sorting and graphing.