===Intro===
[https://youtu.be/l2TiKFBS3LY Sales Training Video]

===Manuals===
[[Model 100 Manuals]]

===RAM===
[[Model 100 RAM]]

===Serial Cable===
[[Model_T_Serial_Cable]]

===Parallel able===
[[Model_T_Parallel_Cable]]

===Barcode Wand===
[[BCR_PORT]]

===RAM Expansion===
[[PG Designs M100 RAM Expansion|PG Designs]]

===System ROM===
[[Model_T_Y2K|Y2K Patch]] 
[[https://bitchin100.com/wiki/index.php?title=M100/T102_Hardware_scrolling_patch Hardware Scrolling Patch]] 
[[https://sarahkmarr.com/retromodel100.html LibROM]] 
[[FlexROM_100]]

===Option ROM===
[[Model 100 Option ROM pinout|Pinout]] 
[[REX]] 
[[Teeprom]]

===Disk===
[[TPDD|Tandy Portable Disk Drive]] 
[[Disk/Video Interface]] 
[https://drive.google.com/drive/folders/1V_0imPo_JmF8xKWGJLOlfmnWdGPz5k-A Remote Disk] 

=Software=
[[Text_Sweeper]]

=Other resources=
[https://archive.org/details/M100SIG The M100 SIG Archive]

Teeprom

2026-02-26T02:50:54Z

Bkw: /* Sources */

Teeprom

2026-02-26T02:44:47Z

Bkw: /* Parts */

<gallery>
Teeprom.jpg
Teeprom_6.jpg
Teeprom_7.jpg
Teeprom_8.jpg
Teeprom_9.jpg
Teeprom_10.jpg
</gallery>
[https://photos.app.goo.gl/aicpPgKjzFoJweb8A More Pictures]

== Parts ==
PCB & Carrier: https://www.pcbway.com/project/shareproject/Teeprom___Writable_option_rom_for_TRS_80_Model_100__102__200.html 
BOM: https://www.digikey.com/short/thq5fbr0 


== Programming ==
To write the eeprom, you need:
* Programmer such as [http://autoelectric.cn/EN/TL866_main.html TL866]
* SOIC-28 test clip such as [https://duckduckgo.com/?q=pomona+5437&ia=web Pomona 5437], [https://duckduckgo.com/?q="923660-28" AP/3M 923660-28], [https://duckduckgo.com/?q="923665-28" AP/3M 923665-28]
* [https://www.digikey.com/product-detail/en/adam-tech/ICS-328-T/2057-ICS-328-T-ND/9832859 dip-28 socket]
* 28 [https://www.amazon.com/dp/B06XRV92ZB/ jumper wires] with male pins on one end and female Dupont style sockets on the other end.
* [https://drive.google.com/open?id=0Bys6eLbSbYyhU01uYjFYNnpkTmM rom image files]

Put the female ends of the wires onto the test clip. 
Put the male ends of the wires into the dip28 socket. 
Put the dip28 socket into the programmer. 
Remove the Teeprom from the Model 100/102/200 
Clip the test clip onto the chip on the Teeprom module.

== 4ROM ==
4-bank module that fits in the socket and holds 4 rom images.

https://github.com/bkw777/Teeprom/blob/master/4ROM.md

<gallery>
4ROM_10.jpg
4ROM_11.jpg
</gallery>

== Sources ==
The PCB is maintained on github: http://github.com/bkw777/Teeprom 
The carrier is maintained on github: http://github.com/bkw777/Molex78802_Module

If you want to get the carrier printed by another service, get the STL file from the github repo and upload it to any other appropriate service such as [http://www.weerg.com Weerg], [https://craftcloud3d.com/ CraftCloud], etc.

It's important to use the appropriate printing technology for this part. Currently the only commonly available / practical printing method that is both accurate enough and produces a functionally strong enough part is [https://duckduckgo.com/?q=SLS+printing SLS]. Print with any other method at your own risk. Some notes about the common options:
:[https://duckduckgo.com/?q=FDM+printing FDM / Fused Deposition]: Essentially not printable by FDM. I have managed to print this on my own FDM printer (Creality CR-10S). It was just barely accurate enough to fit, but too weak. Broke quickly.
:[https://duckduckgo.com/?q=SLA+printing SLA / Stereo Lithography]: Prints extremely accurately and would fit perfect, but is too fragile. Might have luck wth one of the fancy new tough resins, but not with standard resin.
:[https://duckduckgo.com/?q=MJF+printing MJF / Multjet Fusion]: Not accurate enough. I tried several times from ShapeWays. Looks almost perfect visually, doesn't fit well enough.

Some print services offer extra high resolution options for their SLS printing. Sculpteo offers a 60um option which is about twice as high resolution as normal. This does come out very nice, but isn't necessary. The Standard SLS raw nylon 100-120um from Sculpteo, or the standard/cheapest option from Shapeways, is already perfect.

Some print services offer dye and other post-processing options. Be careful with those as they can change the final fit. Raw nylon with or without plain dye coloring finish is always fine. Sculpteo also offers some gloss and paint finishes. I have not tried any of those yet. The added layer of paint may possibly cause a problem.

PCB ordering notes 
Min Track/Spacing: 6/6mil - On PCBWAY the ordering page may come up with 5/5 or even 4/4 pre-selected, rasing the cost a lot, but this board does not actually have any such narrow traces or gaps. Just manually switch it to 6/6 
Solder Mask: Any, but some colors result in either higher cost or longer wait time. The "yellow" color is not really yellow. It's more like a clear coat that looks orange-yellow just from the copper. 
Surface Finish: ENIG

Teeprom

2026-02-26T02:44:08Z

Bkw: /* Parts */

<gallery>
Teeprom.jpg
Teeprom_6.jpg
Teeprom_7.jpg
Teeprom_8.jpg
Teeprom_9.jpg
Teeprom_10.jpg
</gallery>
[https://photos.app.goo.gl/aicpPgKjzFoJweb8A More Pictures]

== Parts ==
PCB & Carrier: [https://www.pcbway.com/project/shareproject/Teeprom___Writable_option_rom_for_TRS_80_Model_100__102__200.html PCBWAY] 
BOM: https://www.digikey.com/short/thq5fbr0 


== Programming ==
To write the eeprom, you need:
* Programmer such as [http://autoelectric.cn/EN/TL866_main.html TL866]
* SOIC-28 test clip such as [https://duckduckgo.com/?q=pomona+5437&ia=web Pomona 5437], [https://duckduckgo.com/?q="923660-28" AP/3M 923660-28], [https://duckduckgo.com/?q="923665-28" AP/3M 923665-28]
* [https://www.digikey.com/product-detail/en/adam-tech/ICS-328-T/2057-ICS-328-T-ND/9832859 dip-28 socket]
* 28 [https://www.amazon.com/dp/B06XRV92ZB/ jumper wires] with male pins on one end and female Dupont style sockets on the other end.
* [https://drive.google.com/open?id=0Bys6eLbSbYyhU01uYjFYNnpkTmM rom image files]

Put the female ends of the wires onto the test clip. 
Put the male ends of the wires into the dip28 socket. 
Put the dip28 socket into the programmer. 
Remove the Teeprom from the Model 100/102/200 
Clip the test clip onto the chip on the Teeprom module.

== 4ROM ==
4-bank module that fits in the socket and holds 4 rom images.

https://github.com/bkw777/Teeprom/blob/master/4ROM.md

<gallery>
4ROM_10.jpg
4ROM_11.jpg
</gallery>

== Sources ==
The PCB is maintained on github: http://github.com/bkw777/Teeprom 
The carrier is maintained on github: http://github.com/bkw777/Molex78802_Module

If you want to get the carrier printed by another service, get the STL file from the github repo and upload it to any other appropriate service such as [http://www.weerg.com Weerg], [https://craftcloud3d.com/ CraftCloud], etc.

It's important to use the appropriate printing technology for this part. Currently the only commonly available / practical printing method that is both accurate enough and produces a functionally strong enough part is [https://duckduckgo.com/?q=SLS+printing SLS]. Print with any other method at your own risk. Some notes about the common options:
:[https://duckduckgo.com/?q=FDM+printing FDM / Fused Deposition]: Essentially not printable by FDM. I have managed to print this on my own FDM printer (Creality CR-10S). It was just barely accurate enough to fit, but too weak. Broke quickly.
:[https://duckduckgo.com/?q=SLA+printing SLA / Stereo Lithography]: Prints extremely accurately and would fit perfect, but is too fragile. Might have luck wth one of the fancy new tough resins, but not with standard resin.
:[https://duckduckgo.com/?q=MJF+printing MJF / Multjet Fusion]: Not accurate enough. I tried several times from ShapeWays. Looks almost perfect visually, doesn't fit well enough.

Some print services offer extra high resolution options for their SLS printing. Sculpteo offers a 60um option which is about twice as high resolution as normal. This does come out very nice, but isn't necessary. The Standard SLS raw nylon 100-120um from Sculpteo, or the standard/cheapest option from Shapeways, is already perfect.

Some print services offer dye and other post-processing options. Be careful with those as they can change the final fit. Raw nylon with or without plain dye coloring finish is always fine. Sculpteo also offers some gloss and paint finishes. I have not tried any of those yet. The added layer of paint may possibly cause a problem.

PCB ordering notes 
Min Track/Spacing: 6/6mil - On PCBWAY the ordering page may come up with 5/5 or even 4/4 pre-selected, rasing the cost a lot, but this board does not actually have any such narrow traces or gaps. Just manually switch it to 6/6 
Solder Mask: Any, but some colors result in either higher cost or longer wait time. The "yellow" color is not really yellow. It's more like a clear coat that looks orange-yellow just from the copper. 
Surface Finish: ENIG

Model I

2026-02-17T18:38:55Z

Bkw: /* PlayCAS */

==LNW==
https://drive.google.com/drive/folders/0Bys6eLbSbYyhWlc4REx5T3A4cGc?resourcekey=0-BoZ5BNRh1vwWtYDmrcjB5g&usp=drive_link

==IM-2==
https://drive.google.com/drive/folders/0Bys6eLbSbYyhWUFxYjEzdDlFaDg?resourcekey=0-Be3-dkacb-A3SMwIkVZoAg&usp=drive_link

==MISE==
http://bartlettlabs.com/MISE/index.html

https://github.com/bkw777/MISE-enclosure

http://www.thingiverse.com/thing:1511122

==MIRE==
http://bartlettlabs.com/MIRE/index.html

==PlayCAS==
https://drive.google.com/drive/folders/0Bys6eLbSbYyhQTVHM1k3N0VILUk?resourcekey=0-OCh8tB88N9SFK-2CWPU2oA&usp=drive_link

http://youtu.be/XfTVo1Qp1WU

Model I

2026-02-17T18:38:48Z

Bkw: /* PlayCAS */

2025-12-16T16:52:29Z

Bkw:

File:Pgdesigns5.jpg

2025-12-16T16:52:17Z

Bkw:

PG Designs M100 RAM Expansion

2025-12-16T16:51:42Z

Bkw: /* Intro */

==Intro==
PG Designs made several ram expansion boards for Model 100 that ranged from 32K to 224K. 
These devices added extra ram to a Model 100 in the form of 32K "banks", where each bank was essentially a whole separate computer. You use the extra ram by switching from one bank to another, and while in one bank you generally only have access to the files in that bank. It's almost as if you put one Model 100 away and pulled out a different one. The PG Designs ram adds to the original ram inside the Model 100, so if you have 32K installed in the Model 100, and add the the 224K PG Designs, you have a total of 256K available, in the form of 8 banks, where bank 1 is the original internal ram, and banks 2-8 are provided by the expansion.

<gallery>
pgdesigns1.jpg
pgdesigns2.jpg
pgdesigns3.jpg
pgdesigns4.jpg
pgdesigns5.jpg
pgdesigns6.jpg
</gallery>

==Files==
:[[File:PG_Design_Expansion_RAM_for_TRS-80_Model_100_-_1984_32k.pdf]]
:[[File:PG_Design_Expansion_RAM_for_TRS-80_Model_100_-_1985_64k.pdf]]
:[[File:PG_Design_0MENU_2.01.zip]]



==Installing the bank-switch utility==

Back up any files you care about currently on the M100.

Hard reset the M100 (wipe the ram): CTRL+BREAK+RESET

Use a [[TPDD client]] (like TS-DOS) and a [[TPDD server]] (like dl2 or laddie) to copy <code>MENU.BA</code> to the Model 100.
:(You can't convert this to ascii basic and transfer it via TELCOM like you could any other BASIC program. It must be treated like a binary and copied only via some binary-safe method. This could be cassette or xmodem etc, but TPDD is the most convenient.)
:example using [https://github.com/bkw777/dl2 dl2]: <code>$ dl -v -b TEENY.100 && dl -v -u</code>
:Then on the 100 use TEENY to copy MENU.BA
::The command in TEENY would be <code>L MENU .BA</code>

Run MENU.BA
:Answer the prompts about which bank you are currently in and how many banks your unit has.
::After the power-cycle, you are in bank 1.
::If your unit has 7 ram chips (3 are hidden in between the two pcbs), that is 8 banks, the Model 100's original 32k plus 7 more banks of 32k.
:Ignore the “FC error in 4” error that flashes by. It's not really an error in this case.

At this point the program is installed, though you can't see it. 
It is an invisible program called <code>0MENU</code>. (number zero, not letter oh)

To run it, type <code>0MENU</code> at the main menu and press Enter.

You should now see a new modified main menu, and you can switch to another bank.

Once you switch to some other bank, it will be a new empty bank that doesn't have <code>0MENU</code> or anything else in it.

To get back to bank 1 or any other bank, you can repeat the 0MENU install in the new bank, and all other banks. 
With 0MENU installed in all banks, then you can switch directly from any bank to any other.

You can also just power-cycle the machine and that will always put you back to bank 1. 
Since bank 1 has 0MENU installed, and you can always get to bank 1 by power-cycle, you could get by with only the bank 1 install.

==Usage==
0MENU also allows you to copy files from any bank that has 0MENU to any other bank that has 0MENU.

You can use INVISO.BA to make the program visible (MENU.BA), or invisible again (0MENU).

==TODO==
Create an mp3 cassette version of MENU.BA.

Create a 0MENU loader that can be bootstrapped directly like teeny/ts-dos/etc?

==Credits / References==
Pictures: https://photos.app.goo.gl/HgBp1QsyNhM4JUg78

:There are several bits of info about the PG Designs ram expansion in the [https://github.com/LivingM100SIG/Living_M100SIG M100SIG] archive.
:Here are some examples, there may be even more.

:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/BANKSW.100 Lib-09-PERIFERALS/BANKSW.100]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG-TIP.000 Lib-09-PERIFERALS/PG-TIP.000]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG-TIP.001 Lib-09-PERIFERALS/PG-TIP.001]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG-TIP.002 Lib-09-PERIFERALS/PG-TIP.002]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PG64K.DVI Lib-09-PERIFERALS/PG64K.DVI]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PGMENU.100 Lib-09-PERIFERALS/PGMENU.100]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/PGMUNK.TIP Lib-09-PERIFERALS/PGMUNK.TIP]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/RAMEXP.THD Lib-09-PERIFERALS/RAMEXP.THD]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/Lib-09-PERIFERALS/DSKMGR.PGD Lib-09-PERIFERALS/DSKMGR.PGD]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/LIB-13-REVIEWS/BIGRAM.THD LIB-13-REVIEWS/BIGRAM.THD]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/LIB-13-REVIEWS/BIGRAM.REV LIB-13-REVIEWS/BIGRAM.REV]
:[https://github.com/LivingM100SIG/Living_M100SIG/blob/main/M100SIG/LIB-13-REVIEWS/PGD64K.REV LIB-13-REVIEWS/PGD64K.REV]

http://www.tmne.com/downloads.html (see floppyco.txt from the menu_ba.zip here)

http://www.club100.org/memfiles/index.php?direction=0&order=&directory=Steve%20Adolph/MENU%20add%20on%20for%20M100%20and%20T102& 0menu v1.3

https://drive.google.com/drive/folders/0Bys6eLbSbYyhZTY1a3VXVFRUQmM?resourcekey=0-DIPxlRnOkDgk9HVRscvFEw 0menu v2.01 (from Richard Hanson below)

http://www.club100.org/library/libups.html See the RICHARD HANSON section
:PG Design Data Transfer Utility v2.01 for 32K - 224K RAM Expansion units.
:Please note: The MENU.BA file is not in ASCII due to embeded machine language code. You must download with xmodem or greater. The INVISO.BA file is ASCII.
:[http://www.club100.org/library/ups/menu.ba MENU.BA]
:[http://www.club100.org/library/ups/inviso.ba INVISO.BA]

Apparently these were also sold under the name Enterprise Systems? Maybe re-seller? https://drive.google.com/file/d/1pJcSvFAw4smcPIzbVWhnBLERoaKb3xqX/view

Compatibility issue, and work-around, with the stock Tandy dos for TPDD and TPDD-2: http://www.ordersomewherechaos.com/rosso/fetish/m102/web100/docs/pdd2-dos-patch.html

NEC:PC-8300:keyboard fabric

2025-12-13T14:34:55Z

Bkw:

This is a stencil to cut a new non-woven fabric sheet that lays on top of the keyboard PCB of an NEC PC-8300.

The material is called "non-woven fabric" and can usually be found any place that sells fabric.

Original is the .fig drawn in [https://mcj.sourceforge.net/ xfig]. 
The others are converted from that.

[[file:pc-8300_keyboard_nonwoven_sheet.fig]] 
[[file:pc-8300_keyboard_nonwoven_sheet.eps]] 
[[file:pc-8300_keyboard_nonwoven_sheet.pdf]]

File:Pc-8300 keyboard nonwoven sheet.pdf

2025-12-13T14:25:57Z

Bkw:

File:Pc-8300 keyboard nonwoven sheet.eps

2025-12-13T14:25:38Z

Bkw:

2025-03-24T05:15:18Z

Bkw:

=Bar Code Reader port=
...on all KC-85 clones (but not the KC-85 itself!)

Conforms to 9-pin "Undecoded TTL" standard.

==Pinout==
{| class="wikitable" style="text_align: center;"
|-
!colspan="3"|[[File:DE9M_pin_numbers.png|300px|]]
|-
! Pin# !! Signal !!
|-
| 1 || ||
|-
| 2 || DATA || Input, 5v TTL, 0-5vdc
|-
| 3 || ||
|-
| 4 || ||
|-
| 5 || GND* || N/C on TANDY 102 & 200. N/C on most wands.
|-
| 6 || ||
|-
| 7 || GND ||
|-
| 8 || ||
|-
| 9 || VCC || +5vdc power output. Crashes machine if you draw more than 60-70ma.
|-
| Shell || || Plastic shell, N/C
|}

==Compatible Readers==
:[https://archive.org/details/trs-80-bar-code-reader-manual Radio Shack 26-1183]
:Unitech MS1xxA (MS100A, [https://www.ute.com/en/products/detail/MS120 MS120A], MS146A)
:HP [[Media:HBCS-A000.pdf|HBCS-A008, HBCS-A108, HBCS-A208, HBCS-A308, HBCS-A408, HBCS-A508]]
:HP [[Media:HEDS-3000.pdf|HEDS-3000, HEDS-3050]]

==Software==
:[[Media:BARCOD.zip|BARCOD.zip]] READBC, 3of9, plessy, upc, for Model 100
:[https://github.com/search?q=repo%3ALivingM100SIG%2FLiving_M100SIG%20barcode&type=code Search the M100SIG for "barcode"]

==BCR-to-USB power tap==
https://github.com/bkw777/BCR_Breakout

==misc info==
http://www.mh-aerotools.de/hp/bc-reader/index.htm 
The pdf contains a full schematic of a wand.

BCR PORT

2025-03-24T05:14:32Z

2025-03-24T00:53:51Z

Bkw: