3 ms·

An open replacement for the IBM 3174 Establishment Controller

42 points by bri3d 8mo ago

skissane 8mo ago
I wonder how hard it would be to write an emulator to run the actual 3174 software?
- uxhacker 8mo ago
  The ibm 3174 was just a controller to then link the terminals to an AS400 mini / mainframe
  - kev009 8mo ago
    The 3174 support async hosts among other conversions so it would be interesting. I forget if this was one of the products that used the 801/AMERICA CPU, I don't think it's a COTS microprocessor.
  - hakfoo 8mo ago
    I bought a 3174-1L from my university because it was $20 and I didn't know that 1) it was a boat anchor without the rest of the system and 2) it wouldn't actually fit in the back seat of a Hyundai Sonata and 3) it was wired for 208v so doubly useless in mu 110v country. I'm pretty sure there was some sort of local processing power, since it had a floppy drive to load "firmware" discs. I await the Doom port.
unit149 8mo ago
[dead]
dare944 8mo ago
I really know next to nothing about the IBM mainframe world--I'm more of a retro-DEC guy. But that seeing that beautiful 3278 terminal pegs my retro-envy needle every time. God I would love to own one!
farklenotabot 8mo ago
Can sell this to Costco and best buy
zoky 8mo ago
It is a work in progress and is far from providing all the features you might expect from a later model 3174, but it does provide basic TN3270 and VT100 emulation. + TN3270 + Extended Data Stream + Basic TN3270E + Device name (LU) negotiation o SSL/TLS I think that last one is a joke but I really don’t know enough about this sort of thing to be sure…
- p_l 8mo ago
  Telnet supports SSL, even if it's rare to see, just like there's an SSL enabled version of FTP. Both are used by IBM Mainframes (z/OS) and medium scale systems (AS/400)
nxobject 8mo ago
As an aside, the author's original project webpage is a delightful example of semantic HTML, cleanly and aesthetically rendered. https://ajk.me/building-an-ibm-3270-terminal-controller https://ajk.me/building-an-ibm-3270-terminal-controller

42 points by bri3d 8mo ago

skissane 8mo ago

I wonder how hard it would be to write an emulator to run the actual 3174 software?

uxhacker 8mo ago
The ibm 3174 was just a controller to then link the terminals to an AS400 mini / mainframe
- kev009 8mo ago
  The 3174 support async hosts among other conversions so it would be interesting. I forget if this was one of the products that used the 801/AMERICA CPU, I don't think it's a COTS microprocessor.
- hakfoo 8mo ago
  I bought a 3174-1L from my university because it was $20 and I didn't know that 1) it was a boat anchor without the rest of the system and 2) it wouldn't actually fit in the back seat of a Hyundai Sonata and 3) it was wired for 208v so doubly useless in mu 110v country. I'm pretty sure there was some sort of local processing power, since it had a floppy drive to load "firmware" discs. I await the Doom port.

unit149 8mo ago

[dead]

dare944 8mo ago

I really know next to nothing about the IBM mainframe world--I'm more of a retro-DEC guy. But that seeing that beautiful 3278 terminal pegs my retro-envy needle every time. God I would love to own one!

farklenotabot 8mo ago

Can sell this to Costco and best buy

zoky 8mo ago

It is a work in progress and is far from providing all the features you might expect from a later model 3174, but it does provide basic TN3270 and VT100 emulation. + TN3270 + Extended Data Stream + Basic TN3270E + Device name (LU) negotiation o SSL/TLS I think that last one is a joke but I really don’t know enough about this sort of thing to be sure…

p_l 8mo ago
Telnet supports SSL, even if it's rare to see, just like there's an SSL enabled version of FTP. Both are used by IBM Mainframes (z/OS) and medium scale systems (AS/400)

nxobject 8mo ago

As an aside, the author's original project webpage is a delightful example of semantic HTML, cleanly and aesthetically rendered. https://ajk.me/building-an-ibm-3270-terminal-controller https://ajk.me/building-an-ibm-3270-terminal-controller