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VCF 7.0 - Exhibition

The Vintage Computer Festival wants you to display the pride of your collection at VCF 7.0.  Every collector has a machine or two in their collection that is in exceptional condition, or is extremely rare, or has a good story behind it, etc.  Or perhaps you're a programmer and have written a great simulator of some grand old machine.  Or maybe you've built a wonderful re-creation of a significant machine of the past.  Now's your chance to show it off to other hobbyists!

Not only is this your chance to show off the pride of your collection, but your exhibit could also win the coveted Best of Show award! First, Second and Third place prizes will be awarded with a ribbon based on the votes your exhibit garners from VCF attendees.

To review the rules and regulations of the exhibit, click here.

To exhibit at VCF East 7.0, click on the button below.




















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Currently Registered VCF 7.0 Exhibits

SDF Public Access UNIX System
Stephen Jones (Seattle, WA, United States)

AT&T 3B2/500+XM, four AT&T Terminals and a TTY5620. This interactive exhibit represents the past incarnation of the SDF Public Access UNIX System and will allow visitors to login and play the multiuser games only found on the SDF (mazewar, com, bboard, John Gonnerman's MultiDungeonGame, Steven Shipway's Wanderer and many others).

Apple Lisa 2/10 and Processor Techonolgy SOL-20
Jordan Ruderman (Santa Cruz, CA, United States)

On display will be an Apple Lisa 2/10 and a Processor Technology SOL-20.

Secret Weapons of Commodore LIVE!
Cameron Kaiser (La Mesa, CA, United States)

Meet some of the famous Commodore rarities from the Secret Weapons of Commodore, including the SX-64, the SFX Sound Expander, the Magic Voice, the Commodore 116, the UltiMAX and (just added) the B128! More information on these systems and peripherals is available at the Secret Weapons of Commodore website.

Altair 30th Anniversary
Erik Klein (San Jose, CA, United States)

Celebrating the 30th anniversary of the now-famous Popular Electronics cover story and the computer it unveiled, on display will be several different Altair systems including models 8800, 8800a, and 8800BT.

Bill Kendrick (Mountain View, CA, United States)

Presenting the powerful 8-bit Atari 800XL computers, an Atari 2600 Jr. video game system, and Atari Lynx color handheld video game systems, plus "Atari800": a popular Open Source Atari 8-bit computer emulator for Windows, Linux, Mac and other modern platforms.

Replica I Apple I clone
Vince Briel (North Ridgeville, OH, United States)

On display will be the Briel Computers Replica 1, a fully functional clone of the Apple 1, running software originally developed for the Apple 1.

Included with the display will be the new serial I/O board developed for the Replica 1 (but also works on the original Apple 1) that allows programs to be transfered from a PC or Mac into the Replica 1.

Briel Computers will also debut its next clone project, to be announced at VCF 7.0.

PDP-11/40 Running Ancient Unix
Pavl Zachary (Aptos, CA, United States)

A Digital Equipment Corporation PDP 11/40 computer, complete with vintage peripherals including disks, high-speed line-printers, and ancient terminals, inviting you to login to a UNIX system, the likes of which haven't often been seen since the mid-1970s when Digital was the world's largest minicomputer manufacturer and UNIX was just becoming the rising star of the nascent Internet. This is a trip back to a time before windowing operating systems, 5.25" floppy disks, and even vi!

Pre-Altair Personal Computers
Jack Rubin (Wilmette, IL, United States)

This display includes the Scelbi 8-H and the RGS-008, two 8008-based computers accompanied by an extensive collection of documentation, marketing literature, contemporary reviews, relevant publications and transcripts of interviews with the designers/creators.

First TRS-80 on the Internet
Frank LaRosa (Belmont, CA, United States)

In 1985, a BBS called Searchlight running on a TRS-80 Model 3 was brought online. In 1997, the old TRS-80 was pulled out of the cloest, refurbished with some "modern" floppy disk drives, and the BBS was re-born on the Internet using a modem emulator running on a PC that fooled the TRS-80 into thinking it was taking calls over a modem.

The Searchlight BBS will be reanimated once again at VCF 7.0, connected live to the Internet to allow incoming "calls".

Osborne I Portable Computer
Fritz Schneider (Sunnyvale, CA, United States)

The first microcomputer with a serious software bundle was the Osborne I. It featured a fast Z80 CPU, two floppy disk drives, and was portable. It came with CP/M, SuperCalc, WordStar, Basic, and dBase II.

The Evolution of Handheld Math
Boris Debic (Foster City, CA, United States)

Sixty years of palm-sized computational history presented through devices, simulations and applications. From a WWII concentration camp survival story to symbolic algebra on a contemporary PDA. We'll spin counters and go back to a time when assembly language was more like:

"A calculator will automatically subtract by addition, when it doesn't transfer to the main counter the number set to subtract but, instead, its nine's complement, and subsequently adds a one to the lowest position. The complement segments are not in operation during addition because they move between the possible positions of the setting gears. When the stepped drum is shifted up over one and a half times the distance between the segments, then the complemented toothing engages with the setting gears, and each gear of the setting mechanism does not rotate over the number of teeth corresponding to the number set, but over its nine's complement."

Semi-Virtual Diskette - Vintage Floppy Emulator
Eric Rothfus (Austin, TX, United States)

The SVD is a device that emulates a vintage 5.25" floppy drive that would normally be connected to a TRS-80, Heathkit, or Apple ][ computer. One can download a floppy image from a "modern" PC to the SVD, and the vintage machine can boot directly from it.

The SVD can be used to run vintage software or to create backups of vintage software that can be saved to modern PCs.

More information can be found on the SVD website.

Raster vs. Vector Display Technology
Kathy Fulton (Cupertino, CA, United States)

This exhibit demonstrates the difference between raster and vector display technology by using contemporary non-computer technology: an Etch-a-sketch and Spirograph to simulate vector display technology versus a LiteBrite to simulate raster display technology. The exhibit will include a Vectrex to further illustrate vector technology.

The exhibit is directed towards younger visitors to provide a gentle introduction to the two types of display technology.

IBM 1130 Simulator
Brian Knittel (Berkeley, CA, United States)

An IBM 1130 simulator including a paper tape reader, Documation card reader and an Epson dot matrix printer.

OSI Superboard
Larry Pezzolo (Palo Alto, CA, United States)

Ohio Scientific Instruments 6502-based single board computer. A very early system that has 8K BASIC in ROM, a full keyboard and video along with the usual I/O ports. Sold as the "Model 600", "Superboard" and in a case with a power supply as the "C1P".

Analog Computer used for Heating Calculations
Larry Pezzolo (Palo Alto, CA, United States)

Analog Computer in a briefcase made by Beckman Instrument and used for calculating heating requirments for buildings. This was perhaps a salesman's or sales engineer's demonstration kit used to impress customers in the pre-microcomputer era.

Commodore Gold
Larry Anderson (San Andreas, CA, United States)

Celebrating two multi-million selling home computers by Commodore: the VIC-20 and the Commodore 64. Exhibit includes information, demonstrations and video clips.

Calculators of Mass Destruction
Hans Franke (Muenchen, Bavaria, Germany)

This exhibit features a series of odd calculators that perform more than just simple computations, including one with a built-in Geiger counter.

Digital Group Computers
Bryan Blackburn (Mesa, AZ, United States)

the digital group, formed in 1974, was among the earliest of all personal computer manufacturers. They were responsible for many innovations such as including built in video interface and cassette program storage capability in all of their systems, as well as a built in bootstrap ROM, among several other industry firsts. the digital group offered a wide range of computing products and systems, and were popular with hobbyist and professional computer users alike.

This display will feature numerous dg products and a working Mini-Bytemaster system, the last complete system offered by the digital group, circa 1978

More information is available at

Osborne Portables
Jordan Ruderman (Santa Cruz, CA, United States)

This exhibit will feature an Osborne I and a rare Osborne III prototype.

North Star Computers
Alan Bowker (San Anselmo, CA, United States)

North Star computers of Berkeley, California, pioneered the first microcomputer-based 5.25" floppy drive disk system that was the cornerstone for the popular North Star Horizon and North Star Advantage Z80-based computer systems. Technology demonstrations will include WordStar operating a Diablo 630 printer as well as graphics applications on the Advantage.

From Smoke to Boot
Dwight Elvey (Santa Cruz, CA, United States)

At VCF 4.0 in 2000, Jim Willing demonstrated a Polymorphic Systems 8813 that was taken new out-of-the-box and powered up for the first time. It smoked. This exhibit will feature that same computer, but now in working condition.

Curta Calculator
Fritz Schneider (Sunnyvale, CA, United States)

Before electric calculators there were mechanical calculators, and the most compact of these was the Curta. It can add, subtract, multiply and divide. A skilled operator can even extract square roots!

Early Sun Workstations
Robert Harker (Lincoln, CA, United States)

This exhibit includes four vintage Sun Microsystems computers:

Sun 1/100U workstation
Sun 1/150 server
Sun 3/50 workstation
Sun 3/160 workstation

Along with a collection of circuit boards showing early Sun hardware designs.

Southwest Technical Products Corp.
Michael Holley (Seattle, WA, United States)

SWTPC (1964-1986) started selling electronics kits based on construction articles published in Popular Electronics and Radio Electronics. Dan Meyer, the founder, designed a series of audio projects. Soon Don Lancaster started providing IC based designs of test equipment and the famous TV Typewriter.

In 1975, SWTPC introduced the 6800 Computer System and the CT-1024 Terminal (which appeared in a construction article in the February 1975 issue of Radio Electronics). SWTPC continued selling computers until 1986.

A collection of vintage catalogs, brochures, and magazines will be on display. Various SWTPC kits from the 1960s and 1970s will also be shown.

More information on SWTPC can be found at

Imlac PDS-1D - Maze War
Tom Uban (Valparaiso, IN, United States)

The Imlac PDS-1D was one of the first integrated vector graphics computers, circa 1970. This example will be running what is called the first 3-D multi-player game, Maze War, as well as a number of other programs, including Space War, pinball, SNARF, terminal emulator, etc.

Computing by Steam
Tim Robinson (Boulder Creek, CA, United States)

A working model of Charles Babbage's first difference engine, inspired by the fragment he completed in 1832, will be displayed and demonstrated.

The model is constructed entirely from Meccano parts and computes using the "method of differences". With three orders of differences, polynomials up to the third degree can be tabulated.

It is hand cranked, as was Babbage's demonstration engine, producing results at a rate of about one every four seconds. Babbage envisaged that a full scale machine, which he never completed, would be driven by a steam engine.

More information on this replica can be found at

Differential Analyzer
Tim Robinson (Boulder Creek, CA, United States)

The differential analyzer is a mechanical analog computer for solving differential equations. It was invented in 1931 at MIT by Vannevar Bush. Many similar machines were built in both the US and Europe in the 1930's and 1940's, and some were still operational as late as 1960.

This recreation is constructed almost entirely from Meccano parts (as were some of the earliest copies in the UK). It follows the layout and functionality of Bush's prototype. It has four integrators, an input table and a dual output table.

It will be operational, set up to solve a simple differential equation illustrating all the principal functions.

More information on this replica can be found at

Atari ST Personal Computers
Philip Louie (San Francisco, CA, United States)

Showcasing the second generation of personal computers made by Atari: the Atari ST line of 16/32-bit personal computers. Computers to be exhibited include the original Atari 520ST and the Atari MegaSTE personal computers running everything from games to demos to MIDI/music applications.

Apple Powered: The Bandai Pippin
Wayne M. Smith (La Canada, CA, United States)

This exhibit features a machine that was powered internally by Apple technology but designed and sold by a third-party manufacturer.

The Bandai Pippin, which lasted less than one year in the U.S. market, is powered by a Power PC 603 processor running at 66MHz. On display will be a prototype Pippin (with Power PC logo) and the retail version, both upgraded to 14MB of RAM.

Apple Powered: The Tiger Learning Computer
Wayne M. Smith (La Canada, CA, United States)

This exhibit features a machine that was powered internally by Apple technology but designed and sold by a third-party manufacturer.

This exhibit features the Tiger Learning Computer, a licensed Apple //e clone sold as a kid's laptop "toy" that never made it past test marketing in four U.S. cities.

Bastardized 64
Hans Franke (Muenchen, Bavaria, Germany)

This is Commodore 64 enclosure updated with a 1.2Ghz mini-ITX motherboard running a Commodore 64 emulator under Linux.

Alpha Microsystems AM-1000
Bob Fowler (San Leandro, CA, United States)

The AM-1000, released in 1982, is a general multi-user desktop microcomputer based on Motorola's 68000 CPU. The system commands, architecture, and disk directory structure are intentionally designed to be very similiar to the DEC PDP mainframes of the 1970's. The AM-1000 was one of the first multi-user implementations of the 68000 CPU, but was actually a second generation computer, replacing Alpha Microsystem's earlier AM-100 (1977), which was also fully multi-user.

The exhibit will include a vintage 1982 AM-1000, two 1980s era terminals, an HP-2500 color laser printer (2002), and extensive original AM-100 and AM-1000 documentation. A number of interesting applications will be available for demonstration, including horoscopes (in color), nutritional food charts (in color), and multi-precisional calculations.

Bob Fowler served on the board of AMUS (the national Alpha Micro Users Society) since 1980, and managed the local AMUS chapter for San Francisco during the period of 1980-1993. A complete set of newsletters from both those organizations will be at the exhibit.

SWTPC TV Typewriter
Michael Holley (Seattle, WA, United States)

The TV Typewriter was a landmark in the personal computer movement. The original version (1973) had limited success; the second version (1975) came along at the right time and was very popular.

A fully restored CT-1024 (TV Typewriter II) will be shown plus another one under restoration. Also included is a collection of original documents and magazines for both versions. Don Lancaster's TV Typewriter prototype is in the collection of the Computer History Museum.

More information on the TV Typewriter can be found at

COSMAC Elf Replica
Bob Armstrong (Milpitas, CA, United States)

On display will be a replica of the COSMAC Elf.

Microprocessors and Microcontrollers
Robert Suding (Conifer, CO, United States)

A collection of microprocessors and microcontrollers from the Intel 4004 through to more modern devices.

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