Model T Projects Information Page

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These pages provide information on my Model T projects - ReMem and REX, and others....

ReMem:

ReMem is a complete memory subsystem for the TRS-80 Model 100 family of laptops.  It replaces all the memory in the laptop, and provides for flexible use of 4MB of flash ROM and 2MB of SRAM.

ReMem can be installed in:

  • TRS-80 Model 100
  • Tandy 102
  • Tandy 200
  • NEC PC-8201 (pending)
Features:
  • 100 % compatible with exiting M100 software
  • Default operation is exactly the same as the original machine
  • multiple OPTION ROMs may be loaded and used
  • ROM patches supported
    • Y2K patch
    • T102 image in M100 hardware
    • Lomem patch
  • internal 256kb RAMPAC for file storage
  • 8 fast-switchable “virtual laptop” environments
  • FLASH storage for RAM images
  • FLASH and RAM disk capabilities
  • expandable logic
    • Internal UART port for interconnect with future serial devices
    • Additional hardware features for hobbiest useage
ReMem2V2test

REX:

REX is a option rom socket based memory subsystem for the TRS-80 Model 100 family of laptops.  

REX can be installed in:

  • TRS-80 Model 100
  • Tandy 102
  • Tandy 200

Features:

  • 100 % compatible with exiting M100 software
  • Default operation is exactly the same as the original machine
  • multiple OPTION ROMs may be loaded and used
  • ROM patches supported
    • Y2K patch
    • T102 image in M100 hardware
    • Lomem patch
  • FLASH storage for RAM images
  • FLASH  disk capabilities
REX
rex installed

Tandy 200 RAM Module:

The T200 RAM module is a simple product that adds 2 banks of 24kb to a T200. 

T200RAM