XT-FDC is really set to 6. DOS has been an obsolete operating system for close to twenty years but it still shows up in a few places:. Not sure on VRAM amount. If that jumper is removed the card wouldn’t be generating IRQs at all. I would look for a adapter from a well-known manufacturer with an RJ45 connector and a good packet driver. This page barely scratches the surface of DOS networking.

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Some 16 bit cards might be able to function in an 8 bit slot, but you will have to experiment with that. Networking for DOS is always an add-on feature so it takes a little bit of work to set up, but nothing too difficult.

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You can find the files here: Protocol suites are interesting but most people do not interact with them; they use applications that hide the details of the protocol suite and underlying data transfer medium.

As a result, networking applications generally included code to talk to a few specific models of network adapters directly.

XT-FDC is really set to 6. I would stick to classic Ethernet over these two alternatives – they tend to drop a lot of packets. When the packet driver loads it is going to look for the Ethernet adapter and try to communicate with it to ensure that the Ethernet adapter is available.

3d509b are not ne compatible. As a result, there was a great variety of programs that used different rules for sending data. Can they work in XT? After the packet driver is installed, other software will use the packet driver by setting parameters and issuing the software interrupt.


DOS TCP/IP Networking with Packet Drivers

The software interrupt to use is usually specified on the command line when the packet driver is loaded. Here is my set of criteria:. I have not experienced one but I have read in many places that if you find a 3Com 3C based adapter that you should burn it and bury it.

I guess there is a lot of 3c out there even more then PC-XT’s available so if someone did a port it would be used to get alot of vintage NIC networking, i can see it is not much code but probably alot of knowledge that would have to go into it.

And although DOS came a little bit before the era of widespread networking on home computers, there was enough overlap such that reasonably good networking software exists for DOS.

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Inside the packet driver is code to talk to a specific piece of hardware. If that jumper is removed the card wouldn’t be eos IRQs at all. It is doable in some cases, for example some programs would automagically detect Sound Blaster interrupt.

So you can use it, but you will have to live with any bugs and limitations. Even the slowest DOS machines dating back to the early s can do the following once networked:. The growth of DSL and cable modem devices in the early s made home networks almost a requirement, if only to allow sharing the one connection point to the Internet. At the beginning of the networking era for DOS PCs there were very few network adapters to choose from and network applications were highly specialized.


DOS has been an obsolete operating system for close to twenty years but it still shows up in a few places:. For this system to work you need to tell the packet driver what software interrupt it should claim. You will have to use the original driver. Blasting files around the house at speeds ranging from 25KB per second on a slow machine with a parallel-port Ethernet adapter to KB per second on a high end with a 16 bit NE compatible adapter sure beats the heck out of ‘sneakernet.

Yes the one that I used for tests. Unfortunately the web pages for Trumpet are gone now.

There are lots of factors that go into choosing networking hardware. A notable exception was LapLink by Traveling Software. If you are running DOS on such a high powered machine, I applaud you. It assumes a specific data transfer port number, which is what was standard years ago. The good news is that networking adapters and equipment is as inexpensive as it will ever get, and most machines running DOS can easily make use of used equipment that people are just throwing away.

Can this card work in a 8-bit slot? LapLink provided software and a special cable that allowed two computers to directly connect to each other through their parallel ports.