Up for sale are three ROMs for the NEC 8201A portable computer.
First, is a main rom that operates as a Y2K update. This means the dates on your computer will start with '20' instead of '19'.
The other is Ultimate Rom II.Programs Included on the Chip

• T-Word: A word processor and text formatter for editing and producing professional documents.
• Idea!: An outline processor used to organize simple lists or complex documents.
• T-Base: A database management system for setting up files, running calculations, and producing reports.
• ROM-View 80: A display enhancement that increases screen density to show 80 characters per line with scrolling (omitted on the Tandy 200 version).
• TS-DOS: A disk operating system utility allowing direct document printing/previewing and RAM-to-disk backups via the Tandy Portable Disk Drive

The final is Rom II/ Cleuseau.

BASIC Enhancements: Adds advanced programming and debugging tools for Microsoft BASIC, notably the RENUM command for program renumbering.

System Utilities: Includes speed enhancements, file packing, and program consolidation features.

TDD/Disk Support: Interfaces with disk drives like the Portable Disk Drive (TPDD) to manage, load, and execute .DO, .CO, .BA, and .BR files.

Control Commands: Can be enabled, disabled, or invoked via specific CALL or EXEC machine code commands depending on the host model.

I have included a photo showing how the ROMs are inserted within the 8201A.
Note: I do not own the rights to the software on these ROMs, however the information is within public domain.Domestic shipping for this item is locked at $4.50