A hobbyist software developer and retro computing enthusiast has succeeded in bridging the ChatGPT and IBM PC-XT computing divide. On the lookout for

MS-DOS ChatGPT Client Arrives for 1984 IBM PC

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2023-03-29 22:30:02

A hobbyist software developer and retro computing enthusiast has succeeded in bridging the ChatGPT and IBM PC-XT computing divide. On the lookout for a challenge, Yo Kheng Meng wondered if he could write a ChatGPT client for MS-DOS. Specifically, he targeted a 1984 vintage IBM 5155 Portable PC, which is powered by a 4.77 MHz Intel 8088 CPU and has 640KB of RAM (enough for anyone, right?). Several technological obstacles needed to be surmounted to make the project a success.

Typically, most people access ChatGPT via a web browser, but it seems to be a growing trend to access this AI resource via a client. We have reported on some notable and fun clients like a ChatGPT Smartwatch powered by a Raspberry Pi and Microsoft’s much maligned Clippy with an AI brain transplant. However, getting ChatGPT to work on one of the most ancient of PCs might be even more ambitious.

Meng started his quest by finding a compiler which could span the 40 years or so gap between the target computer and ChatGPT. The Open Watcom C/C++ compiler fit the bill. To test the DOS application during development he decided to run it in a virtual machine (Virtualbox virtual machine running DOS 6.22) on a modern PC.