Vintage Radio Shack TRS-80 Color Computer Editor Assembler with ZBUG (EDTASM+) software cartridge, catalog number 26-3250. This custom-manufactured program by Tandy Corporation is designed for the TRS-80 Color Computer system and comes in its original protective clamshell packaging. A rare find for vintage computing enthusiasts and collectors, this assembly language development tool includes the ZBUG debugger to assist in programming and testing code on legacy hardware. The cartridge features the iconic rainbow-striped branding and remains in its factory-sealed or original retail presentation.