![[598535B2-3491-4327-8F16-BFB95762AC9D_1_105_c.jpeg]]
[~4 hour live stream building and installing XT-IDE](https://www.youtube.com/watch?v=Ml_yVPE1HuE)
[[XT-IDE]]
[[Serial console via macOS]]
[[Dialup emulation via macOS]]
[[ATD Memory Expansion Card]]
[[Photo gallery]]
# Specs
- Graphics
- Not an IBM CGA card!
- Yellow/black twisted pair going from the CGA card is composite video signal
- RAM
- 256k internal
- Floppy drives
- 5.25", 360kb, double-sided double density (DS DD)
- Terminator (yellow IC) must be installed on the LAST drive in the chain, on the last connector at the end of the floppy controller cable (after the twist). That will be the A: drive.
# Modern hardware resources
[PicoPSU](https://github.com/dekuNukem/PicoRC/blob/master/ibm5155.md) - power supply replacement
[WiFi232](https://biosrhythm.com/?page_id=1453) - serial modem over Wi-Fi
[RS232 Serial Wifi Modem for Vintage Computers V4](https://www.tindie.com/products/theoldnet/rs232-serial-wifi-modem-for-vintage-computers-v4/)
# Resources
[The Holy Grail reference](http://www.minuszerodegrees.net)
[Good motherboard reference](http://ohlandl.ipv7.net/5155/5155.html)
[Video: browsing the web from the 5155](https://www.youtube.com/watch?v=CMvFKDHh4WM&feature=emb_title)
# Connecting to a BBS
1. Connect the [TheOldNet Wi-Fi modem](https://www.tindie.com/products/theoldnet/rs232-serial-wifi-modem-for-vintage-computers-v4/) to USB power and the serial card.
2. Power on and select the SD card at boot
3. `mode bw80` to change CGA to black & white mode [(info)](http://info.wsisiz.edu.pl/~bse26236/batutil/help/MODESDMS.HTM)
4. `cd c:\apps\procomm`
5. `procomm /b` to start in black & white mode
6. Serial commands
1. `AT?` for help
2. `ATDT[HOST]:[PORT]` to connect to any server
3. `AT&V` to view current config and saved speed dials
4. `ATDS[N]` with `N=0-9` for speed dial
5. `+++` and then *wait*…* *for the command prompt; `ATO` to return to telnet, `ATH0` to hang up
7. Procomm commands
1. `ALT-S` for setup
2. `ALT-F10` for shortcuts
3. `ALT-H` to hang up
4. `ALT-P` to change baud, etc
### Good BBSes
- bbs.retrocampus.com:23 - modern gateways to Wikipedia, Chat GPT, etc
- [radiofreqsandgeeksbbs.amigaz.org](https://radiofreqsandgeeksbbs.amigaz.org):2323 - ham radio, mrcX chat
# Games
- [256 KB](https://www.mobygames.com/game/attribute:1/attribute:64/attribute:99/platform:dos/sort:moby_score/page:1/)
- [512 KB](https://www.mobygames.com/game/attribute:1/attribute:101/attribute:64/attribute:99/platform:dos/title:monster/sort:moby_score/page:1/)
- [The Oregon Trail](https://www.mobygames.com/game/746/the-oregon-trail/specs/dos/)
- [SimCity](https://www.mobygames.com/game/848/simcity/specs/dos/)
# Exposing macOS terminal via socat
```other
export TERM=vt100
socat TCP-LISTEN:1234,reuseaddr,fork EXEC:"/bin/zsh",pty,stderr,setsid,sigint,sane,echo=0
```
Then connect to the PC via `atdt [ip]:1234` from TheOldNet wifi adapter