Compaq Presario 9232, purchased it new back in 96. Still works, but had the CD-ROM replaced under warranty in 1997 or so. I want to say the thing cost around $2500. The original 15" CRT died long ago though.

Four more:

Apple Macintosh Classic ( 1990 )
4mb ram
Quantum hard-drive
Built-in 9” monochrome CRT

Apple Macintosh Color Classic ( 1993 )
Built in 10” Sony Trinitron color CRT
8mb ram
Quantum Hard-drive
Ethernet and can still go online

Apple Macintosh TV ( 1993 )
8mb ram
Quantum hard-drive
Build-in 14” Sony CRT
And still watch TV.

Macintosh 575 Performa ( 1994 )
8mb ram
Quantum Hard-drive
Built-in Sony 14” Color CRT
Ethernet and can still go online

Apple Macintosh? I'm not sure if you know what OEM actually stands for.

Your IBM PS/1 isn't OEM either. Stricktly speaking, there are no OEM computers at all, as OEM refers to the maker of the parts used. The term OEM requires that at least two companies are involved: one that is selling/branding the system, and one that actually made the parts - with the latter being the OEM.

For me, it's this:

appiah4 wrote on 2020-02-21, 07:05:

For me, it's this: […]
Show full quote

For me, it's this:

That’s what I really like about these IBM PS/1 and old Aptiva is how clean and simple they look with the front cover closed.
They also had a really nice hard-drive image with a custom menu system, lots of tools and backup and recovery utilities.
These IBM computers where really the leaders in innovation. With built-in power management and sleep and hibernation mode
For DOS.

I think these were the Cadillac of 486 computers.

Especially the IBM PS/1 Multimedia edition ( 1994 ) which came with a Panasonic 2x CDROM and Sound Blaster.
https://ps1stuff.wordpress.com/download/downl … -for-type-2133/

Here is one more.

Gateway 2000 , 486dx-33 ( 1993 )
8mb ram

My oldest OEMs are:
Philips NMS9100 (8088)
Zenith (8088)
Compaq Deskpro 286
IBM PS/2 30 (8088)
hp Vectra RS/20 (386)
Pics will be added later if the systems are not burried too deep.

probably this carry-1 286

Do laptops count?

actually I just remembered I have something older... gotta snap a pic when I'm home ^^
it's in bad shape though.

Asaki wrote on 2020-02-21, 13:26:

Do laptops count?

Of course.

I had a fully working stock IBM 5170 but I added a new bios and modern storage: CF card and 1.44 & 1.2MB HD Floppy, + SCSI Controller and external SCSI CD-ROM, 384k Ram Expansion card, as well as a TSENG 4000 and SoundbBlaster 2.0. I could however return all the original parts, 20MB HDD, IBM CGA card, original 1.2 and 360k floppies, etc and have it all working as all the parts still work.

My oldest would be my original “tan case” Osborne 1. Still works like the day it was built.

It was made in very early 1982.

I will have to set it up again but the oldest functional one is the

1976 CASI Apollo VP2
S100 Bus and a whopping 8kb of ram on a digital music card.

I don’t have the original monitor, camera, keyboard (optional) or printer though.

Zack_H wrote on 2020-02-21, 15:04:

My oldest would be my original “tan case” Osborne 1. Still works like the day it was built.

It was made in very early 1982.

Oh, That’s one of my favorite old computer ads.

I would argue that "OEM" is well-established to mean systems built and sold by a single vendor, or their sub-contractors -- vs. DIY, clone, or custom computers built by a reseller. That's exactly how I would refer to my own brand-name PCs, so without further ado...

Here are mine, in reverse-chronological order:

*AST Advantage! 824 Pentium 133
AST Advantage! 486SX/25
Dell Dimension 386SX/25
IBM PS/2 Model 30 286 (except the HDD, of course..)
Tandy 1000 RL/HD
IBM PCJr.

*EDIT: Just added this. Got sniped by eBay's algorithm. "Heeey... look what we have..." ooh! ... no! I don't need another Pentium. "Yes you do." YES I DO!

Intel486dx33 wrote on 2020-02-21, 14:54:

Asaki wrote on 2020-02-21, 13:26:

Do laptops count?

Of course.

In that case, my oldest would be a Compaq LTE...I forget which model, but it's a 486, like most have been posting (two different ones, one for parts). 486 must have been a real sweet spot for OEMs starting up.

We had a couple legit OEM desktops growing up, before we started building our own, but those are all long gone: two IBM PCjrs, a Pentium 150 mhz from Packard Bell, some kind of Celeron eMachine with WinME...

I do have a 486 and a P1 that look like they were built by the same smaller company, but I never looked it up. Otherwise, oldest would be an Atari 600XL and an Apple IIe Platinum, if those count.

None of my oldest working computers have their original Hard Drives, but aside from that these are all in working order.

I haven't owned all these from new, was given most of them for free in the early 2000s, aside from 1 PC I bought 2nd hand as noted:

My oldest would be my Olivetti PCS 11 (not sure when it was released, either late 1980s or early 1990s):

Intel 386SX @ 16MHz
10MB RAM (this is an upgrade, this system came with just RAM soldered to the board and empty slots to expand it)
Onboard Western Digital 9131 Graphics
1x ISA Slot (currently fitted with a 3Com 3C509B Ethernet Card)
1.2GB IDE HDD (original Conner 40MB IDE HDD died)
OS: MS-DOS 6.22 with Windows for Workgroups 3.11 (it had MS-DOS 5 when I originally got it).

2nd oldest is this, originally released in 1993:

This PC has had a hard life, scratches & scuffs and was exposed to the elements outside. Took a lot of cleaning up to get it looking this good again, but could still do with a bit of work. It's mostly working, though may have an issue with it's motherboard as there are some issues occasionally that I haven't figured out yet.

Dell OptiPlex 425S/L
Original CPU that I still have: Intel 486SX @ 25MHz / Current CPU that is installed: Intel 486DX2 @ 66MHz
16MB RAM (can't recall how much RAM it originally came with, probably 4MB)
1GB CF Card + 120GB IDE HDD (original HDD died)
Onboard Tseng Labs ET 4000 1MB Graphics
3x ISA Slots (currently fitted with a SoundBlaster AWE64 Value & a 3Com 3C509B Ethernet Card with XTIDE boot ROM)
OS: Windows 95

3rd oldest, a PC I actually bought 2nd hand in the early 2000s, originally released in either 1995 or 1996:

Digital Venturis 575
Socket 5 Motherboard
Original CPU that I still have: Intel Pentium @ 75MHz / Current CPU that is installed: IDT Winchip C6 @ 200MHz
72MB RAM (originally came with just 8MB RAM soldered onboard and empty SIMM slots. Performance is good with 72MB RAM, despite it only being able to cache 64MB. The board can take 128MB but runs like crap due to the cache limitation)
640MB IDE HDD
Onboard S3 Trio64 1MB Graphics
2x ISA Slots & 2x PCI Slots (currently fitted with S3 ViRGE 325 2MB PCI Graphics, RealTek RTL8139B PCI Ethernet Card & ESS ES1868 ISA Sound Card)
OS: Windows 95

The oldest PC I own that I've owned from brand new is my Advent 8737 bought at PC World in late 1999:

Old picture from the early 2000s, but I still have everything pictured except for the monitor & printer which died:

Specs:
Gigabyte GA-6BXE Rev. 2, Slot 1 Motherboard
Intel 440BX Chipset
Intel Pentium III @ 650MHz
100MHz FSB
512MB PC100 SDRAM (originally came with 128MB RAM)
40GB IDE HDD
Nvidia TNT2 32MB AGP Graphics
Sound Blaster Live! 5.1 PCI Sound Card (originally had an Aureal Vortex 2 AU8330 PCI Sound Card, which I put into another PC)
Intel Pro 100/S PCI 10/100Mbps Ethernet
Current OS: Zeta 1.21 (later version of BeOS) / Originally Installed OS: Windows 98 Second Edition

Aside from the RAM, Sound Card & Ethernet Card, all the rest of the hardware is the same as back in 1999! Also originally had a crappy 56K PCI WinModem, which I still have somewhere but is practically useless nowadays.

I have loads of Windows 98 machines, so this is my retro BeOS machine.

The motherboard needs recapping, there is at least 1 bloated capacitor and this seems to cause a non-working floppy drive. Aside from that, it's working as good as it did in 1999.

Does commdore 64 count as OEM computer? 😜