Associative memory on a Commodore 64
John Walker’s 1987 neural-network associative memory program in BASIC, with a recorded demonstration and original source reference.
Search exhibitions, machines, software, and catalog entries.
John Walker’s 1987 neural-network associative memory program in BASIC, with a recorded demonstration and original source reference.
Historical demonstrations of associative memory and rule-based conversation.
Search the museum’s machines, components, peripherals, and collection records.
Creative Labs’ Dr. Sbaitso 2.20: a historical rule-based conversation and speech-synthesis demonstration.
Send an enquiry or contribute information to ATX Computer Museum.
Interactive hardware-level emulation of the Sirius handheld computer and AlephOS 2.0 operating system, with technical analysis of 1-bit low-resolution display challenges.
Explore six collection exhibitions: Turok development workstations, networks before the web, SGI systems, the SOL-20, Sirius, and the Spielberg Indigo.
Four excerpts from Amir Husain’s UT Austin and Talks at Google recordings, with source times, controls, and written notes.
The story of ATX Computer Museum in Florence, Texas: its collection, software, and visiting plans.
Hardware architecture, tri-controller 8051 pipeline at 40 MHz, dual KS0108 LCD interface, and PCB schematics of the Sirius handheld computer.
ATX Computer Museum in Florence, Central Texas. Computers, software, and records of their use. Public opening planned for February 2027.
A later SGI desktop workstation running IRIX.
A compact MIPS workstation running IRIX.
An IRIX workstation with a modular tower enclosure.
Silicon Graphics presented this Indigo Elan to Steven Spielberg during the production of Jurassic Park.
A compact server appliance with an integrated network interface.
An Apple II system with enhanced graphics and sound.
MIPS R10000 processor family; IMPACT graphics.
A portable Macintosh with a translucent enclosure.
A working replica front panel for a PDP-11/70 computer.
An Atari 8-bit home computer.
The original IBM PC model.
Two generations of the compact Macintosh.
A Be development workstation with two PowerPC processors and surviving BeOS source files.
An integrated Commodore business computer.
A modern Raspberry Pi enclosure modeled on the NeXTcube.
A flat desktop workstation running NeXTSTEP.
A Motorola 68040 workstation running NeXTSTEP.
A later Sun desktop workstation.
A compact SPARC desktop workstation.
A graphical office computer with a mouse-driven interface.
A 68000-based computer with an SC1224 color monitor.
An 8-bit home computer with dedicated sound and graphics chips.
An integrated HP technical computer.
An HP technical workstation family based on Motorola processors.
A keyboard and display for interacting with a host computer.
An IBM RISC System/6000 workstation built around AIX.
A transportable PS/2 system, recorded as P70 class.
A tape souvenir associated with CERN’s Large Hadron Collider.
A transportable CP/M computer with an integrated display.
A Kaypro portable CP/M computer with twin floppy drives and a built-in CRT.
A compact PowerPC G4 computer in Apple’s distinctive clear enclosure.
A compact MIPS workstation running IRIX.
An earlier SGI desktop graphics workstation.
An Intel-based SGI system running Windows NT.
Browse the photographed machines by collection group, with links to individual records.
3Com built the Audrey for a moment that never arrived: the idea that households would want a cheap, fixed-function internet terminal on the counter, separate from the family computer.
The Amiga 500 of 1987 was the cost-reduced Amiga, and a widely used model.
The IIGS could produce 4096 colours and needed a display that could show them.
Apple sold dot matrix printers for the Apple II and the early Macintosh, and they are what documents looked like before 1985.
Apple moved its professional displays to flat panels early and priced them accordingly.
A collection object that helps tell the wider history of personal and technical computing.
The IIGS of 1986 kept compatibility with the Apple II library while moving to a 16-bit 65C816, adding 4096 colours and an Ensoniq wavetable chip that gave it better audio than any Macintosh of the period.
The IIe of 1983 took the Apple II design, cut the chip count, and added lower case, 80 columns and a proper keyboard.
By the middle of the 2000s Apple had moved the iMac from translucent plastic to a white slab holding a flat panel, and then to the design where the whole computer hides behind the screen.
A collection object that helps tell the wider history of personal and technical computing.
The Monitor III was Apple's 12-inch monochrome display for the Apple III, a machine whose own reputation was ruined by early reliability problems severe enough that Apple replaced the entire first production run.
After the tangerine clamshell catalogued elsewhere here, Apple's consumer portable became a plain white polycarbonate slab: no handle, no colours, a shape that lasted through the iBook G4 and set the pattern for the plastic MacBook.
When the Macintosh II gave the Mac colour and expansion slots in 1987, it needed a colour display to go with it.
AT&T needed a PC to sell into the business market and did not build one.
A collection object that helps tell the wider history of personal and technical computing.
The 65XE of 1985 is the same 8-bit architecture as the 800XL catalogued elsewhere here, in the wedge-shaped case Atari adopted after Jack Tramiel took the company over and lined its products up with the new ST.
The Megafile connected through the ST's DMA port and gave the machine a hard disk in a case styled to sit under the monitor with the rest of the system.
Intel's Atom line put x86 into thermal envelopes that had previously belonged to embedded processors, which produced a wave of tiny fanless desktops used as thin clients, kiosks and home servers.
A BeBox Dual603-133 development workstation with surviving BeOS source files.
A BeBox Dual603-133 development workstation with surviving BeOS source files.
An FPGA recreation implements the original chips as logic, cycle by cycle, instead of imitating their behaviour in software.
The 8525 was an HTC design sold by Cingular in the United States and under half a dozen other names elsewhere.
ClearCube's system split the PC in half.
Each blade is a complete PC, and the cage holds several of them with shared power and cooling.
The 1084 accepted composite, RGB and separate luma and chroma, which meant it could be driven properly by an Amiga, a Commodore 64 and a good deal else besides.
The S revision added stereo speakers, which mattered because the Amiga had four channels of sampled audio and most monitors could only give you one.
Commodore's disk drives were computers in their own right.
Commodore sold monitors across its whole range so that buyers were not dependent on a spare television.
The PC 10 is an 8088 machine running MS-DOS, sold mainly in Europe from the mid 1980s.
A collection object that helps tell the wider history of personal and technical computing.
By the late 1990s the laptop had settled into the shape it still has: colour TFT, a trackpad, a CD drive in a bay, and a battery that lasted rather less than the marketing said.
Compaq's iPaq desktop of 2000 dropped the serial, parallel and PS/2 connectors for USB alone, in a small vertical case aimed at corporate deployments and thin-client use.
Compaq's 1983 luggable was a full IBM PC compatible in a sewing-machine case.
The Inspiron 7500 was large, heavy and fast, built for people who wanted one machine rather than a laptop and a desktop.
Gateway sold direct from South Dakota, shipped in boxes printed like Holstein hide, and undercut the retail channel by cutting the channel out.
Handspring was founded by Jeff Hawkins and Donna Dubinsky, who had created the Palm Pilot and left after Palm was sold.
By the time Intel's Core 2 Duo arrived in 2006, the distinction this museum is built on had closed.
This example is included because of its installed software.
A collection object that helps tell the wider history of personal and technical computing.
The PCjr of 1984 had better graphics and sound than the IBM PC and was crippled everywhere else: a rubber chiclet keyboard that typists hated, limited memory expansion, and incompatibilities with the PC software people bought it to run.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The ThinkPad was designed around a Japanese lunch box, given a matte black case, a keyboard that engineers trusted and the TrackPoint that people either loved or ignored.
Intel's Next Unit of Computing reference design put a complete PC, with modern I/O and enough performance for real work, into a chassis roughly the size of a drinks coaster.
The 2005 Mac mini asked people who already owned a monitor and a keyboard to buy the computer alone.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The 1986 Macintosh Plus fixed what the 1984 Macintosh got wrong.
Buckling spring and mechanical switch keyboards were simply what a serious computer came with.
SGI and Sun keyboards, embedded boards, spare SGI graphics cards and motherboards.
Supporting equipment keeps the collection usable.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The Tungsten E2 of 2005 had a colour screen, Bluetooth and non-volatile memory, so a flat battery no longer meant losing everything on the device.
The Accelerated Graphics Port gave the graphics card a dedicated path to main memory, and with it the PC gained the one capability that had most clearly belonged to SGI.
Held as a reference for the systems around it.
The Pentium 4 was built around a long pipeline and very high clock speeds, an approach that ran into heat and stopped scaling.
The blue Power Mac G4 tower in the collection.
The silver Power Mac G4 tower in the collection.
The 1600SW ran 1600 by 1024 in a 16:10 widescreen shape at a time when everyone else was selling 4:3 CRTs, and it used SGI's own digital connection rather than analogue VGA.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
Seventeen SGI Indy workstations held for restoration and a future hands-on teaching lab.
A working SGI Indy and the wider Indy group preserved for the stories of IRIX, Turok, and a future teaching lab.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The Origin line applied SGI's NUMAlink interconnect to servers rather than workstations, letting many processors share memory across a single system image.
Sun's displays ran at resolutions and refresh rates that PC monitors of the same years could not manage, on Sun's own 13W3 connector, which is why they were sold as part of the system rather than separately.
The V100 of 2002 put an UltraSPARC IIi and Solaris into a single rack unit at a price meant to compete with x86 servers rather than with other Unix machines.
The SPARCstation 10 of 1992 took Sun's flat desktop form and made it capable of holding more than one processor module, so a department could buy compute a piece at a time.
The Model 100 of 1983 ran for weeks on four AA cells, started instantly because its software was in ROM, had a full-size keyboard and a built-in modem, and weighed under four pounds.
The TRS-80 Model I arrived in 1977 alongside the Apple II and the Commodore PET, and it outsold both at first because Tandy could put it in front of people in thousands of Radio Shack stores.
The Libretto line squeezed a complete x86 PC, running real Windows rather than a cut-down system, into a machine about the size of a paperback with a keyboard you could just about touch-type on.
The Satellite line was Toshiba's volume laptop through the 1990s, and the company was for a period the largest laptop maker in the world.
A KVM switch is the piece of infrastructure that makes a collection like this usable.
ViewSonic sold into the professional market at prices well below Apple and SGI, and machines like this are what most people actually put on their desks once CRTs went.
The Commodore 64, the Atari 8-bits and most home computers of that generation were designed to plug into the family television, and that is how nearly everyone used them.
Within a few years of the SGI 1600SW the whole market moved to widescreen, and it stopped being a professional feature and became simply what a monitor was.
The Vortex86 line puts an x86-compatible core into low-power embedded hardware, which matters when a factory or a piece of instrumentation depends on software nobody can port and nobody dares touch.
The 360 of 2005 had a triple-core PowerPC processor and a custom ATI graphics part with unified shaders, which arrived on the console before it reached PC graphics cards.
The original Xbox of 2001 was, in hardware terms, a small PC.
A sourced exhibition on EduNET, UNDP’s SDNP, offline UUCP access, and Interflex in 1990s Pakistan.
Original and reconstructed software, working copies, machine condition, and the museum’s documentation approach.
How the museum handles form submissions and opening updates, and how to request accessible information.
Computer photographs added to the collection intake in the last 70 minutes.
Contribute firsthand recollections, technical identifications, photographs, and corrections to the museum records.
SGI workstations, IRIX desktops, collection photographs, and notes on recording installed hardware and operating environments.
Serious Machines by Amir Husain, AM Press 2024. Book information, contents, and publisher contact.
The Sirius handheld, its AlephOS software, contemporary Urdu coverage, and recorded accession information.
An integer-coordinate projection experiment in QBASIC.
A 110-line QBASIC rotation program.
A QuickBASIC bulletin board system.
A DOS editor that writes directly to video memory.
A two-player cricket game written in BASIC.
Separate DOS programs for authoring and reading illustrated lessons.
A graphical client for requesting and reading material over UUCP.
A fuzzy-logic lift scheduler with simulated passengers.
A typeface described by BASIC drawing instructions.
A graphical DOS shell with an icon editor and memory monitor.
A small HTTP server implemented with sockets in Perl 4.
A command-driven database interpreter for DOS.
A server for graphical RIPscrip terminals.
A targeting experiment using fuzzy rules and shot feedback.
A keypad-driven animator using ASCII sprite files.
A desktop and editor built from DOS text-mode characters.
Programs written by Amir Husain in the 1990s: networking clients, graphical shells, educational software, games, and programming tools.
The provenance of a Processor Technology SOL-20 from Paul Allen's collection, previously displayed at Living Computers in Seattle.
The inscribed SGI Indigo Elan presented by Silicon Graphics to Steven Spielberg during the production of Jurassic Park, with its handover photograph and object record.
James Truchard, Michael Dell, Richard Garriott, and Bob Metcalfe: people, ideas, and artifacts from Austin’s computing history.
The discovery and 2017 sale of Turok-related SGI Indy systems, their acquisition by Amir Husain, and plans for their first public display.
ATX Computer Museum, 166 Novi Rd, Florence, Texas. Opening plans, directions, visitor enquiries, and opening updates.
3Com built the Audrey for a moment that never arrived: the idea that households would want a cheap, fixed-function internet terminal on the counter, separate from the family computer.
The Amiga 500 of 1987 was the cost-reduced Amiga, and a widely used model.
The IIGS of 1986 kept compatibility with the Apple II library while moving to a 16-bit 65C816, adding 4096 colours and an Ensoniq wavetable chip that gave it better audio than any Macintosh of the period.
The IIe of 1983 took the Apple II design, cut the chip count, and added lower case, 80 columns and a proper keyboard.
By the middle of the 2000s Apple had moved the iMac from translucent plastic to a white slab holding a flat panel, and then to the design where the whole computer hides behind the screen.
The G4 Cube of 2000 suspended a full PowerPC computer inside a clear acrylic block, cooled by convection alone without a cooling fan.
A collection object that helps tell the wider history of personal and technical computing.
AT&T needed a PC to sell into the business market and did not build one.
The 65XE of 1985 is the same 8-bit architecture as the 800XL catalogued elsewhere here, in the wedge-shaped case Atari adopted after Jack Tramiel took the company over and lined its products up with the new ST.
Intel's Atom line put x86 into thermal envelopes that had previously belonged to embedded processors, which produced a wave of tiny fanless desktops used as thin clients, kiosks and home servers.
A BeBox Dual603-133 development workstation with surviving BeOS source files.
A BeBox Dual603-133 development workstation with surviving BeOS source files.
An FPGA recreation implements the original chips as logic, cycle by cycle, instead of imitating their behaviour in software.
ClearCube's system split the PC in half.
Each blade is a complete PC, and the cage holds several of them with shared power and cooling.
A collection object that helps tell the wider history of personal and technical computing.
The PC 10 is an 8088 machine running MS-DOS, sold mainly in Europe from the mid 1980s.
Compaq's iPaq desktop of 2000 dropped the serial, parallel and PS/2 connectors for USB alone, in a small vertical case aimed at corporate deployments and thin-client use.
Compaq's 1983 luggable was a full IBM PC compatible in a sewing-machine case.
Gateway sold direct from South Dakota, shipped in boxes printed like Holstein hide, and undercut the retail channel by cutting the channel out.
By the time Intel's Core 2 Duo arrived in 2006, the distinction this museum is built on had closed.
A collection object that helps tell the wider history of personal and technical computing.
The PCjr of 1984 had better graphics and sound than the IBM PC and was crippled everywhere else: a rubber chiclet keyboard that typists hated, limited memory expansion, and incompatibilities with the PC software people bought it to run.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
Intel's Next Unit of Computing reference design put a complete PC, with modern I/O and enough performance for real work, into a chassis roughly the size of a drinks coaster.
Kaypro followed Osborne into the portable market in 1982 with a machine built into a folded aluminium shell, a nine-inch screen where Osborne had five, and the same commercial idea: bundle enough software that the buyer needs nothing else.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The 1986 Macintosh Plus fixed what the 1984 Macintosh got wrong.
The 2005 Mac mini asked people who already owned a monitor and a keyboard to buy the computer alone.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The Accelerated Graphics Port gave the graphics card a dedicated path to main memory, and with it the PC gained the one capability that had most clearly belonged to SGI.
Held as a reference for the systems around it.
The Pentium 4 was built around a long pipeline and very high clock speeds, an approach that ran into heat and stopped scaling.
The blue Power Mac G4 tower in the collection.
The silver Power Mac G4 tower in the collection.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
Seventeen SGI Indy workstations held for restoration and a future hands-on teaching lab.
A working SGI Indy and the wider Indy group preserved for the stories of IRIX, Turok, and a future teaching lab.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The Origin line applied SGI's NUMAlink interconnect to servers rather than workstations, letting many processors share memory across a single system image.
The V100 of 2002 put an UltraSPARC IIi and Solaris into a single rack unit at a price meant to compete with x86 servers rather than with other Unix machines.
The SPARCstation 10 of 1992 took Sun's flat desktop form and made it capable of holding more than one processor module, so a department could buy compute a piece at a time.
The Model 100 of 1983 ran for weeks on four AA cells, started instantly because its software was in ROM, had a full-size keyboard and a built-in modem, and weighed under four pounds.
The TRS-80 Model I arrived in 1977 alongside the Apple II and the Commodore PET, and it outsold both at first because Tandy could put it in front of people in thousands of Radio Shack stores.
The Vortex86 line puts an x86-compatible core into low-power embedded hardware, which matters when a factory or a piece of instrumentation depends on software nobody can port and nobody dares touch.
The 360 of 2005 had a triple-core PowerPC processor and a custom ATI graphics part with unified shaders, which arrived on the console before it reached PC graphics cards.
The original Xbox of 2001 was, in hardware terms, a small PC.
A collection object that helps tell the wider history of personal and technical computing.
After the tangerine clamshell catalogued elsewhere here, Apple's consumer portable became a plain white polycarbonate slab: no handle, no colours, a shape that lasted through the iBook G4 and set the pattern for the plastic MacBook.
By the late 1990s the laptop had settled into the shape it still has: colour TFT, a trackpad, a CD drive in a bay, and a battery that lasted rather less than the marketing said.
The Inspiron 7500 was large, heavy and fast, built for people who wanted one machine rather than a laptop and a desktop.
This example is included because of its installed software.
The Libretto line squeezed a complete x86 PC, running real Windows rather than a cut-down system, into a machine about the size of a paperback with a keyboard you could just about touch-type on.
The Satellite line was Toshiba's volume laptop through the 1990s, and the company was for a period the largest laptop maker in the world.
The Satellite line was Toshiba's volume laptop through the 1990s, and the company was for a period the largest laptop maker in the world.
The ThinkPad was designed around a Japanese lunch box, given a matte black case, a keyboard that engineers trusted and the TrackPoint that people either loved or ignored.
The IIGS could produce 4096 colours and needed a display that could show them.
Apple moved its professional displays to flat panels early and priced them accordingly.
The Monitor III was Apple's 12-inch monochrome display for the Apple III, a machine whose own reputation was ruined by early reliability problems severe enough that Apple replaced the entire first production run.
When the Macintosh II gave the Mac colour and expansion slots in 1987, it needed a colour display to go with it.
A collection object that helps tell the wider history of personal and technical computing.
The 1084 accepted composite, RGB and separate luma and chroma, which meant it could be driven properly by an Amiga, a Commodore 64 and a good deal else besides.
The S revision added stereo speakers, which mattered because the Amiga had four channels of sampled audio and most monitors could only give you one.
Commodore sold monitors across its whole range so that buyers were not dependent on a spare television.
Supporting equipment keeps the collection usable.
A collection object that helps tell the wider history of personal and technical computing.
A collection object that helps tell the wider history of personal and technical computing.
The 1600SW ran 1600 by 1024 in a 16:10 widescreen shape at a time when everyone else was selling 4:3 CRTs, and it used SGI's own digital connection rather than analogue VGA.
Sun's displays ran at resolutions and refresh rates that PC monitors of the same years could not manage, on Sun's own 13W3 connector, which is why they were sold as part of the system rather than separately.
ViewSonic sold into the professional market at prices well below Apple and SGI, and machines like this are what most people actually put on their desks once CRTs went.
Within a few years of the SGI 1600SW the whole market moved to widescreen, and it stopped being a professional feature and became simply what a monitor was.
The Commodore 64, the Atari 8-bits and most home computers of that generation were designed to plug into the family television, and that is how nearly everyone used them.
The Megafile connected through the ST's DMA port and gave the machine a hard disk in a case styled to sit under the monitor with the rest of the system.
Commodore's disk drives were computers in their own right.
Apple sold dot matrix printers for the Apple II and the early Macintosh, and they are what documents looked like before 1985.
A KVM switch is the piece of infrastructure that makes a collection like this usable.
The 8525 was an HTC design sold by Cingular in the United States and under half a dozen other names elsewhere.
Handspring was founded by Jeff Hawkins and Donna Dubinsky, who had created the Palm Pilot and left after Palm was sold.
The Tungsten E2 of 2005 had a colour screen, Bluetooth and non-volatile memory, so a flat battery no longer meant losing everything on the device.
SGI and Sun keyboards, embedded boards, spare SGI graphics cards and motherboards.
Buckling spring and mechanical switch keyboards were simply what a serious computer came with.