One answer is "BOTH", because TRS actually means "Tandy Radio Shack". However I assume you are asking about the labels on the machine and the printing on the boxes. The "Radio Shack TRS-80" was dropped/switched to "Tandy" on the labels sometime during the CoCo 2. I have a total of 8 Color Computers in my Collection: #1 Big box Large (deep) and silver in color "Radio Shack TRS-80 Color Computer" Separate square sticker reading "4K RAM" little square chicklet keys #2 Same box/size/color/labels except "32K RAM" Keyboard bas been upgraded, but I have the original which is the same as above. #3 Same box as above Same size, but white in color. "Radio Shack TRS-80 64k Color Computer" No memory size sticker (64k is on main label) Bigger/square keys, but still fairly flat. #4 Much Smaller box Smaller, not nearly as deep, white in color "Radio Shack TRS-80 Color Computer 2" No memory size sticker on top Same keys as #3 #5 Don't have the box. Same size as #3, white in color "Tandy Color Computer 2" No memory size sticker on top Full sized keys (taller) #6-#8 (all the same) Slightly smaller box than #3 (shorted lengthwise) Same size as #4, white in color "Tandy 128k Color Computer 3" No memory size sticker on top (128k on main label) Full sized keys similar to #5, although there are a couple of new ones in the lower right corner. I've been meaning to post an inquiry about the various CoCo models ... Aside from different memory sizes and standard/extended BASIC, are there any physical variants other than I have described above? I thought that all CoCo1's were silver with the chicklet keys until I just recently got #3 which was quite a suprise to me. The (Canadian) Radio Shack catalogs go directly from #1/#2 in the 1983 issue to #4 in the 1984 issue. I do not recall ever seeing a white CoCo1 with square keys before... Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html