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How old does your hardware go?

Over the years, more than a 1,000 computers have made their way through my office and lab. They've included a $25,000 PC, Gateway's very first 486; several SPARCstations; an IBM AS/400 mini-computer; and a NeXTStation Turbo Color, which I wish I still had. Most of them only stayed long enough for me to review them for magazines like Computer Shopper, Byte, or PC Magazine. I've also owned close to a 100 computers, and some of those have stuck around.

I just completed an epic office and lab clean-up. During it I got rid of 386s, 486s, and old Pentium PCs, but kept a 4MHz Z80 KayPro II from 1982. I kept that one because it was my first PC, and I actually still use it to this day as a terminal for switches and the like. This led me to the question: "What's the oldest PC that you're still using?"

Thanks to Linux, you can now keep old computers running long after their original operating systems have kicked the bucket. For example, I was running Linux on 386s back in 1993.

Today, most modern Linux distributions are optimized for 32-bit Pentium processors and 64-bit CPUs. There are, however, still versions of Linux that can get useful work out of PCs that first ran Windows 95 and 98. I talked about those in an earlier story, entitled, How slow can Linux go?.

I think it's worth noting though that I wasn't talking about finding old distributions for old PCs. These minimal hardware distributions, like Damn Small Linux and Absolute Linux, are being kept up to date and are being actively developed. In other words, you can have a 2009 Linux desktop experience on a 1999 PC.

You can also run Linux on PowerPC-vintage Macs. Yellow Dog Linux, which is a Red Hat Linux spin-off, is probably the best Linux for giving your Blue and White Power Mac G3 or later a new life as a Linux desktop. You can also run Linux on 68K Macs, but here you really need to know what you're doing since there's little support for these processors. Your best shot at running Linux on an early Mac, Atari, or Amiga is to use the Debian port.

Of course, you don't have to run Linux to get useful work out of your old PC. I'm still using CP/M-80 on my KayPro. I do find it amazing though just how much you can get out of ancient hardware though with Linux.

The last of my 386s was still doing useful work with MEPIS Linux as a firewall. I just really needed the room so it's now safe-guarding a local elementary school's network.

That said, what's the oldest PC you're still running for useful work? With a Linux brain-transplant? Let me know. I'm quite curious.

What People Are Saying

Kaypro II

The original Kaypro II ran the Z80 at 2.5MHz.

Some of us replaced the CPU with a Z80A and did some soldering to allow it to be run at 4MHz. Is that how SJV's Kaypro II ran at 4MHz?

I have an old 486DX-75

I have an old 486DX-75 laptop with 4 MB of RAM (I'd upgrade it, but it requires a proprietary memory module). I use a self-compiled 2.6.29 kernel and BusyBox on it. It is used mainly to do serial logins into headless servers.

old computers

I have a Dell Pentium I keep around for some old video games that have PASCAL inline compiling problems with newer CPUs. It is stored in a plastic bag in case I ever need to restore the originals.

Great article, Steven

Great article, Steven, and in this home for old hardware doubling as my office,

One thing, though -- You say:

"You can also run Linux on PowerPC-vintage Macs. Yellow Dog Linux, which is a Red Hat Linux spin-off, is probably the best Linux for giving your Blue and White Power Mac G3 or later a new life as a Linux desktop."

Actually most New World Macs (rule of thumb: Those in colors, other than the "Old World" beige and black) will run versions of Debian, Fedora and OpenSUSE, along with Yellow Dog, as you meniton. Also, I have several "flavored" iMacs running Debian and Xubuntu.

Just thought I'd throw that in. Feel free to throw it out :-)

Larry Cafiero

Old boxes

The oldest system I reqularly use is an SGI 02 running openBSD. The oldest boxes I own are a VIC-20 and a Compaq Portable 1. I work in AV so the VIC will ocasionally see use when I need to look at an RS-232 command string.

IBM 300PL

I am using a IBM 300PL with 350MHz CPU (Intel) and 576 megs of RAM running Mepis as a print server, I think it was built in the mid 90's. I also us a 8 year old HP with a 700MHz CPU (Intel) and 512 megs RAM running Mepis/WINE to run my weather station (KCOMANZA2). My e-book reader is an HP n3410 with a 550MHz CPU (AMD) 256 megs RAM running Puppy Linux 4.1.2 my only non Mepis Linux machine. I was running Mepis 3.2 on it but getting sound to work was tricky. My main web surfing/e-mail machine is a roughly 6 year old Compaq Presario 6000 with a 1.8GHZ CPU (AMD) and 1 gig of RAM. The advantage of my IBM machine is that it shuts its fans off when it sleeps so it uses very little energy, it also happily runs BOINC-SETI in RAM while it sleeps.

IBM 6015

I've retired an old Compaq 486 box, and now the oldest machine I am actively using is an IBM 6015 PowerPC machine as a firewall. The PPC 601 processor & ISA NICs limit performance, but it can still handle anything my cable modem can throw at it.

My oldest currently in use

My oldest currently in use is also my first computer. A 10mhz Turbo XT clone. DOS 3.2. Hard drive has failed, but still play an occasional game on it from floppy. Also knock out some assembly code on it from time to time for fun.

Have owned much older computers, but I actually got them AFTER I already had this one. Don't have any of the older ones anymore as they just didn't feel as special to me, so I ended up selling them to make room for current machines.

Compaq Armada 4160T

My oldest computer that is still in regular use is a Conpaq Armada 4160T. Its a P166 with 48 meg of ram, 6 gig hard drive, and runs Win98SE. Actually I have a pair of them. One is used (mostly) for digital mode operation on Amateur Radio. The other is used to read e-books, view pictures, play MP3 files, and play some old games such as Doom II and 3D Decent.

I also have a working Sinclair ZX-81 that I built from a kit, and modified to use a rewired TI 99/4a keyboard, and Atari 2600 joystick. It still works, and I fire it up once in a while, but it is not in regular use.

My other two computers are considered outdated, but they suit my needs very well. One is a custom built machine with a Biostar MB, 512 meg of ram, AMD Athelon 1800+ processor, and 2 hard drives, an 80 gig, and a 150 gig. It is a multiboot machine running sidux, Mepis, and Windows XP.

The other is a Compaq with a 1.8 Ghz P4, 512 meg of ram, and a 40 gig hard drive. It runs Sidux and Windows XP.

Oldest PC

My oldest "PC" is an Amiga A4000 from 1993 still happily accumulating Usenet newsarticles for my areas of interest.
The software I wrote for this purpose is so much faster than anything I found on my other platforms that it is worthwile to process the data on the Amiga and then transfer it with FTP to my Mac.