Bob Zeidman, a prominent forensic software engineer, found in 2012 that Microsoft’s early versions of MS-DOS did not contain any CP/M code. Microsoft then released DOS source in 2014. Zeidman decided to look again and will announce his findings at Vintage Computer Festival West. Discuss it here.

There are 30 registered exhibits for next month’s Vintage Computer Festival West XI. Exhibit registration is full!

VCF West is Aug. 6-7 at the Computer History Museum in Mountain View, California. There are 25 exhibitors so far. Click here to add to that total! The deadline is this Friday at midnight.

Here at the VCF mothership we’re focused on Vintage Computer Festival West next month, but there are also some independent shows happening soon. These include VCF Midwest (Chicago) in September and VCF Switzerland in November. Please see the independent festivals page for more information.

We’re doing some fundraising. We are auctioning a fully working and Woz-autographed straight Apple II and a fully working and Felsenstein-autographed Processor Tech Sol-20. Both computers are SUPER-CLEAN (full details in the listings; monitors not included). Remember, we’re a non-profit and this is a great cause!

Kenbak-1 inventor John Blankenbaker lectured at VCF East XI last month. Click here to watch it online. Bonus material — here’s a video of John examining the very Kenbak that we displayed at the show.

Video of the lectures by Ted Nelson and Stewart Cheifet will be available this summer.

Also coming soon: VCF West keynote announcements!

Our resurrection of VCF West (Aug. 6-7, Silicon Valley) has met with resounding success. There are almost a dozen exhibits already and the show is still three months away! Register your hands-on exhibit soon to guarantee your spot. Public tickets are also available online — spend less time at the door and more time enjoying the show!

Vintage Computer Festival East was awesome. Several hundred people attended. Event staff heard tons of positive remarks about the keynote speakers, the venue’s new (Federation-run) computer museum, and the quality of the show exhibits.

Many people posted their pictures of the exhibit hall (usually taken off-hours, which is why there aren’t many people blocking the view). Here are a few of the galleries:

Bill Degnan’s pictures

Mike Loewen’s pictures

Herb Johnson’s pictures

Dan Roganti’s pictures

We will add more as they go online. We’ll also post some video soon!

Meanwhile, be sure to check out the Vintage Computer Festival Europa this weekend in Munich, Germany!

It’s time to play the music, it’s time to light the lights…. there probably won’t be any comedic puppets but you will have just as much fun at the Vintage Computer Festival East next week.

Come see TWO original Apple 1 computers and a Kenbak-1. DEC minicomputers, Altairs, Commodores, and everything else. There will be several dozen hands-on exhibits of your favorite 1960s-1980s systems. You’ll also see our newly doubled-in-size computer museum, plus all the other museums at the InfoAge Science Center campus which hosts us.

Classes start Friday. Exhibits are Saturday and Sunday, when kids get in free!

Stop by during the weekend and we promise you’ll have an incredibly fun experience at the VCF East. Pro tip: save time getting in by purchasing your tickets in advance.

We sailed east and rediscovered Europe! Vintage Computer Festival Europa 16 is an independent show April 30-May 1 in Munich, Germany. Click through for more information.