4 ms·

- F9 to enter setup - 4 to switch to Local mode - Shift+S to save setup - F9 to exit setup - Type something. Say hello! - Ctrl+H for backspace, Ctrl+J for

- F9 to enter setup - 4 to switch to Local mode - Shift+S to save setup - F9 to exit setup - Type something. Say hello! - Ctrl+H for backspace, Ctrl+J for a linefeed, Ctrl+N or Enter for a newline Also, the "VT100 connected to an IBM PC AT" link above is pretty remarkable, to me - I always used PC-DOS via the default framebuffer, so I didn't know this was possible!

tiborsaas 5y ago
How can you make it do anything with the "VT100 connected to an IBM PC AT" mode?
- tyingq 5y ago
  "The DOS command CTTY COM2 uses the VT100 for console operations" Or you might have some other DOS software listening on the serial port. Kermit, some BBS, etc.
  - tiborsaas 5y ago
    I should have added that I never used terminals before, so that little hint is unfortunately is not that helpful for me. Edit: nevermind, I got it, it's like SSH-ing to a server.
    - anthk 5y ago
      More like a physical and real terminal instead of a terminal emulator, displaying up a shell once the computer sends you the connection bits here and there. Also you could interface modems by serial and you could send commands over the wire. More like telnet than ssh.
- blueflow 5y ago
  Setup that i use for a vt520 on com1, 9600 baud, 8 bits, no parity: C>MODE COM1:9600,N,8,2 C>CTTY COM1 You can also do it from the autoexec.bat if you want to.
jsmith45 5y ago
> Ctrl+H for backspace, Ctrl+J for a linefeed, Ctrl+N or Enter for a newline It is also worth pointing out that having the enter key send a CR+LF pair instead of just a CR is a setup option in the terminal. > Also, the "VT100 connected to an IBM PC AT" link above is pretty remarkable, to me - I always used PC-DOS via the default framebuffer, so I didn't know this was possible! I'm not terribly surprised that DOS can interface with a serial console, although I was not specifically aware of the feature. One thing that is rather interesting about this is that you can easily tell if an application is using the DOS IO routines for IO (because those get sent to the COM port), vs interfacing with the VGA hardware directly since that appears in the VGA framebuffer. For example, I tried installing windows 1.0 in the emulator, and all the setup screens bypassed the COM port for both input and output until it reached the very end, and then it output a few final messages via DOS IO commands (so they went to the terminal).
bitwize 5y ago
Oh yes, DOS could redirect to a serial link using the CTTY command, like CTTY COM1 or CTTY AUX. Many DOS applications, however, wrote directly to text video memory at b0000h. Those... wouldn't work over serial link. You might be able to get WordStar to work using its ANSI.SYS display installation.
- ddalex 5y ago
  as I just discovered running fdisk on the default disk a>
gpvos 5y ago
On Firefox, F9 switches to reader mode. To disable, go to about:config and set reader.parse-on-load.enabled to false. Reload the page.
billforsternz 5y ago
Ctrl+M (not Ctrl+N) for a newline surely. 0x0a is line feed, 0x0d is carriage return, J is the 10th letter of the alphabet, M is the 13th.

tiborsaas 5y ago

How can you make it do anything with the "VT100 connected to an IBM PC AT" mode?

tyingq 5y ago
"The DOS command CTTY COM2 uses the VT100 for console operations" Or you might have some other DOS software listening on the serial port. Kermit, some BBS, etc.
- tiborsaas 5y ago
  I should have added that I never used terminals before, so that little hint is unfortunately is not that helpful for me. Edit: nevermind, I got it, it's like SSH-ing to a server.
  - anthk 5y ago
    More like a physical and real terminal instead of a terminal emulator, displaying up a shell once the computer sends you the connection bits here and there. Also you could interface modems by serial and you could send commands over the wire. More like telnet than ssh.
blueflow 5y ago
Setup that i use for a vt520 on com1, 9600 baud, 8 bits, no parity: C>MODE COM1:9600,N,8,2 C>CTTY COM1 You can also do it from the autoexec.bat if you want to.

jsmith45 5y ago

> Ctrl+H for backspace, Ctrl+J for a linefeed, Ctrl+N or Enter for a newline It is also worth pointing out that having the enter key send a CR+LF pair instead of just a CR is a setup option in the terminal. > Also, the "VT100 connected to an IBM PC AT" link above is pretty remarkable, to me - I always used PC-DOS via the default framebuffer, so I didn't know this was possible! I'm not terribly surprised that DOS can interface with a serial console, although I was not specifically aware of the feature. One thing that is rather interesting about this is that you can easily tell if an application is using the DOS IO routines for IO (because those get sent to the COM port), vs interfacing with the VGA hardware directly since that appears in the VGA framebuffer. For example, I tried installing windows 1.0 in the emulator, and all the setup screens bypassed the COM port for both input and output until it reached the very end, and then it output a few final messages via DOS IO commands (so they went to the terminal).

bitwize 5y ago

Oh yes, DOS could redirect to a serial link using the CTTY command, like CTTY COM1 or CTTY AUX. Many DOS applications, however, wrote directly to text video memory at b0000h. Those... wouldn't work over serial link. You might be able to get WordStar to work using its ANSI.SYS display installation.

ddalex 5y ago
as I just discovered running fdisk on the default disk a>

gpvos 5y ago

On Firefox, F9 switches to reader mode. To disable, go to about:config and set reader.parse-on-load.enabled to false. Reload the page.

billforsternz 5y ago

Ctrl+M (not Ctrl+N) for a newline surely. 0x0a is line feed, 0x0d is carriage return, J is the 10th letter of the alphabet, M is the 13th.