View source for TDP-100

{{NavCoCoRelatives}}
{{InfoBox |
| caption = TDP-100
| photo = TDP-100.jpg
| date = 
| year = 1982
| notes = gold 64K badge is aftermarket
| infosource = see references
}}

The '''Tandy Data Products System 100''', or '''TDP-100''', was a Color Computer made by Tandy but marketed by Radio Corporation of America (RCA).  The TDP-100 was notable in being marketed outside Tandy's traditional distribution channel of Radio Shack stores; instead being sold by retailers that sold RCA products.  Tandy also made some otherwise-standard CoCo software and peripherals that were TDP-branded.

Tandy announced the TDP-100 in July 1982. [https://archive.org/details/sim_80-micro_1982-11_34/page/n471/mode/2up]

==Articles==

[[Bob Rosen]] of [[Spectrum Projects]] gave the TDP-100 [https://archive.org/details/rainbowmagazine-1983-02/page/n153/mode/2up a favorable review in the February 1983 issue] of ''[[The Rainbow]]'' and in [https://archive.org/details/color-computer-magazine-1983-03/page/n59/mode/2up the April 1983 issue] of ''[[The Color Computer Magazine]]''.  Somewhat strangely, he called TDP "Tandy ''Distributor'' Products" instead of "Tandy Data Products". Anyway, he was clearly impressed enough with the machine to have Spectrum Projects become a TDP-100 retailer, [https://archive.org/details/rainbowmagazine-1982-11/page/n78/mode/1up as advertised in the November 1982 ''Rainbow'']. <small>(Hmm several months before writing his reviews, which did not mention him selling the product. CoCo fans can most likely forgive the apparent conflict of interest from such a stalwart supporter of the platform.)</small>

In May 1983, John Steiner, in Issue 60 of ''Micro'' (formerly ''Micro 6502 Journal''), warned users of early-model TDPs: "There is no buffering between the processor and ROM slot, nor is there any between the controller input and ROM. A failure of either unit can easily damage both. As a precaution, be sure the power is off several seconds before reinstalling a card in the slot." [https://archive.org/details/Micro_NO._60_1983-05_Micro_Ink_US/page/n18/mode/1up]

In September 1983, Steiner, in Issue 64 of ''Micro'', passed along an important tip from Ron Krebs of [[Mark Data Products]]. It provides specifics (including part names and numbers) to fix a problem with high-resolution color graphics in early-model TDP-100s. [https://archive.org/details/micro-6502-journal-64/page/n21/mode/2up].

==Official TDP-Branded Accessories and Software==

This is just a list of '''''specifically TDP-branded''''' products. Obviously, the TDP-100 was not limited to only being able to use these products; since it could (with extremely rare exceptions) use any CoCo 1/2 program or accessory, regardless of whether that CoCo product was an official TDP-branded product, or a Tandy / Radio Shack-branded product, or from a third party.  Similarly, any CoCo could use any TDP-branded product.</br>
TDP used "Stock Numbers" rather than Radio Shack Catalog Numbers.</br>
All TDP-branded programs could run on the base model 16K TDP-100, with no Extended BASIC ROM necessary.</br>
All these products had Radio Shack equivalents. When no "Radio Shack" equivalent name is given, the Radio Shack version's name was the same as the TDP version's.</br>
All TDP-branded programs were [[Program Pak]]s, except ''Learning Lab'', which was on tape.

{| class="wikitable sortable"
|-
! Stock No. !! Product Name !! Radio Shack Equivalent !! RS Cat # !! Nov. 82 Price !!  Notes
|-
| 10-1100 || Color Graphics Printer I || CGP-115 || 26-1192 || style="text-align:right;"|249.95 || Really a plotter, not a printer. Used 4½" wide roll paper
|-
| 10-1101 || Plotter Pens for 10-1100 Black x3 ||  || 26-1480 || style="text-align:right;"|2.95 ||
|-
| 10-1102 || 4⅞" Paper Roll for 10-1100 x3 ||  || 26-1428 ||  style="text-align:right;"|4.95 ||
|-
| 10-1103 || Plotter Pens for 10-1100 1 red 1 blue 1 green ||  || 26-1481 || style="text-align:right;"|2.95 ||
|-
| 10-1130 || Line Printer I || DMP-100 || 26-1253 ||  style="text-align:right;"|399.00 || 
|-
| 10-1131 || 9½" Paper for 10-1130 (500 sheets) ||  || 26-1423 || style="text-align:right;"|7.95 ||
|-
| 10-1132 || Ribbon for 10-1130 || || 26-1424 || style="text-align:right;"|8.95 ||
|-
| 10-1150 || Mini-Disk Drive || [[26-3022|Color Computer Mini Disk Drive #0]] || [[26-3022]] || style="text-align:right;"|599.00 || "Mini" = 5¼"; comparison was to 8" floppies
|-
| 10-1151 || 5¼" Diskette ||  || 26-0305 || style="text-align:right;"|3.95 ||
|-
| 10-1200|| "Black Beauty" Joystick (x2?) || || 26-3008 || style="text-align:right;"|12.95 || 
|-
| 10-1210 || Computer Dust Cover || Color Computer Dust Cover || 26-3006 || style="text-align:right;"|4.95 ||
|-
| 10-1250 || Computer Cassette Recorder || [[CCR-81]] || 26-1208 || style="text-align:right;"|59.95 ||
|-
| 10-1251 || Computer Cassette Tape (CT-10) || C-10 || 26-0302 || style="text-align:right;"|1.79  ||  
|-
| 10-1252 || Computer Cassette Tape (CT-20) || C-20 || 26-0301 ||  style="text-align:right;"|3.69 || 
|-
| 10-1270|| Serial Cable 4-pin DIN to 4-pin DIN ||  || 26-3020 || style="text-align:right;"|4.95 ||
|-
| 10-1290 || Modem I || Direct Connect Modem I ||26-1172 || style="text-align:right;"|149.00 || 
|-
| 10-1300 || ''Bustout'' || || 26-3056 || style="text-align:right;"|29.95 || [[Clone]] of ''Breakout''; called ''Super Bustout'' inside the manual
|-
| 10-1301 || ''Space Assault''|| || 26-3060 || style="text-align:right;"|29.95 || [[Clone]] of ''Space Invaders''
|-
| 10-1302 || ''Project Nebula'' ||  || 26-3063 || style="text-align:right;"|39.95 ||
|-
| 10-1303 || ''Polaris'' ||  || 26-3065 || style="text-align:right;"|29.95 || [[Clone]] / derivative of ''Missile Command''
|-
| 10-1304 || ''Micro Painter'' ||  || 26-3077 || style="text-align:right;"|39.95 || Coloring book app. Radio Shack sold more pictures on tape
|-
| 10-1305 || ''Microbes'' ||  || 26-3085 || style="text-align:right;"|29.95 || [[Clone]] / derivative of ''Asteroids''
|-
| 10-1306 || ''Shooting Gallery'' ||  || 26-3088 || style="text-align:right;"|29.95 ||
|-
| 10-1307 || ''Personal Finance'' ||  || 26-3106 || style="text-align:right;"|39.95 ||
|-
| 10-1308 || ''Color File'' ||  || 26-3103 || style="text-align:right;"|29.95 || Database, saves files to tape
|-
| 10-1309 || ''Spectaculator'' ||  || 26-3104 || style="text-align:right;"|39.95 || Spreadsheet, saves files to tape
|-
| 10-1310 || ''Color Scripsit'' ||  || 26-3105 || style="text-align:right;"|39.95 || Word processor, saves files to tape
|-
| 10-1311 || ''Learning Lab'' || ''Color Computer Learning Lab'' || 26-3153 || style="text-align:right;"|39.95 ||
|-
| 10-1312 || ''Videotex'' ||  || 26-2222 || style="text-align:right;"|29.95 || [[Telecommunications]] app
|-
| 10-1313 || ''Chess'' ||  || 26-3050 || style="text-align:right;"|39.95||
|-
|}

==External Links==
*[https://tandydataproducts.com Tandy Data Products] Enthusiast website
*[https://www.facebook.com/groups/tandydataproducts/ TDP or Tandy Data Products] Facebook public group
*[https://www.youtube.com/watch?v=iQdxZaXBp6o&t=6458s TDP Talk!] CoCoTalk! Episode 132 segment focused on TDP
*[https://www.youtube.com/watch?v=e5GrlkaxF5o TDP System 100 - The Color Computer's Cousin] VintageGeek Episode on YouTube