UNTESTED

Brand: Brother
Model: PN-8500MDS
Super PowerNote personal electronic notebook / portable word processor
Circa 1996; archival software records date the PN-8500MDS/8700MDS Version 2.01 to 1996.
Large monochrome LCD display
Full QWERTY keyboard
Built-in 3.5" 1.44MB floppy disk drive
22-line × 80-character LCD
Serial and parallel connectivity
Built-in word processing, spreadsheet, address book/scheduler/calendar and communications functions
A computer-museum example documents a Z80 processor, 64K RAM and even built-in Tetris.