Other applications were written to use it too. It’s not going to work. Bookmarks Bookmarks Digg del. 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. Of course you might have a machine new enough to have PCI slots or an Ethernet adapter on the motherboard. A device manufacturer needed to provide a packet driver, which was a small TSR that provided the API in the form of software interrupts. Modern web sites are generally too complex to render on old machines and the extensive use of Javascript has made it difficult for old machines.

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Last Jump to page: 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. Here are some examples:. For 16 bit ISA bus machines you can use nearly anything.

An 8-bit Western Digital WD Ethernet card from is very different from a NE clone in pcket PC, yet the packet drivers for each card make them look the same to the rest of the system.

If you search for 3Com you will find they have many different assignments, as they have sold a boatload of cards over the years. Another way to look at it is that your networking software never really talks directly to the networking hardware. More information on mTCP can be found at http: I know this is a little off topic, but will the ne work in an 8 bit slot and a v20?


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.

I would stick to classic Ethernet over these two alternatives – they tend to drop a lot of packets. All of the code is 16 bit and most of the programs will run on a K system using DOS 2. The software interrupt to use is usually specified 3c059b the 3c509v line when the packet driver is loaded. Parallel ports also evolved to operate at faster and faster speeds using improved handshaking on the wires and even DMA.

3Com 3c509

LapLink provided software and a special cable that allowed two computers to directly connect to each other through their parallel ports.

I see that the driver has different input routines for and For machines without slots or where you want a temporary solution I would use a parallel-port to Ethernet adapter. The ASM source code of the 3c Thread Tools Show Printable Version. The software allowed the computers to move files back and forth. All Ethernet cards have unique addresses, assigned by a central entity.

Feeling lucky, is the 3cB compatible with using NE drivers?

Inside the packet driver is code to talk to a specific piece of hardware. Blasting 3c509bb 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.

A “software service” for sending and receiving raw Ethernet packets is in place, courtesy of the packet driver. There are lots of ways to connect computers together. They switched to a packet driver interface when the variety of Ethernet cards mushroomed. Just because pavket got a MAC address doesn’t mean it worked, or that it is even talking to an Ethernet card.


DOS has been an obsolete operating system for close to twenty years but it still shows up in a few places:. This was a simple approach that worked back when there were few network adapters, but you can see a few problems with it. In this case, talk to a piece of networking hardware.

3Com Software Library – Network Interface Cards

Here is my set of criteria:. At this point your machine is physically ready to talk on your network. 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. But the overhead of the parallel port does hurt performance, so while it is a good basic solution it will never beat the performance of an Ethernet adapter pac,et a card.

As a result, networking applications generally included code to talk to a few specific models of network adapters directly. There is a lot of software out there for networking using a packet driver and there are already a lot of pavket on the Internet that describe those resources.

Often there was just one parallel port compared with two serial ports on a computer, and the parallel port was often connected to a printer.