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Welcome to our collection of Rare Computers & Documents

picture of the Electronic Associates Inc. (EAI), TR-10 analog computer from the EarlyComputers collection of rare computers and vintage computers that catalog the history of computing

This collection of rare and vintage computers is one of the largest collections of historical computers in the United States. The EarlyComputers' collection is intended to foster education, encourage research and preserve items that are an integral part of computer history. Our goal is to provide a wide array of rare materials (hardware, software, magazines, newsletters, peripheral devices, books, advertisements, games and personal recollections) that can be used to obtain a broader and better understanding of the history of computing.

The collection houses over 1,000 vintage computer related items, including more than 180 vintage computers and over 20 analog computers. The collection of hardware, software and print materials consists of a wide variety of rare computer items ranging from an 1834 article about Charles Babbage's "new Calculating Engine" to a 45 rpm blue, vinyl record used to store computer programs to numerous computers manufactured between 1950 and 1981.

The EarlyComputers website is attempting to provide you with original research using primary source materials whenever possible. Aside from making use of the rare computers in the EarlyComputer's collection, we are also making use of the Smithsonian, the National Archives, numerous other collections (such as Bruce Damer's DigiBarn collection) and personal interviews with individuals who were involved in bringing about the personal computer revolution.

What's in the EarlyComputers Collection?

  • The collection houses personal computers such as Altair, Imsai, Nascom, Cromemco, OSI, SWTPC, AIM, Cosmac, Hewitt-Packard, Minivac, Commodore, Heathkit, Intel, EAI, Olivetti, Northstar, CompuKit and Texas Instruments among others. (see a partial listing on the right)
  • We house a very large collection of rare computer documents related to the history of computing. These include documents from early as 1834 (Charles Babbage's Difference Engine), 1889 (the Electric Tabulating System), 1948 (Shannon's Mathematical Theory of Communication), 1949 (Shannon's Communication Theory of Secrecy Systems), 1965 (Gordon Moore's article in which he posits the now famous "Moore's Law") and many others up to 1981.
  • Another focus of the collection is on contemporary print material ranging from computer magazines (such as the People's Computer Company, Byte and the Silicon Gulph Gazette) to company catalogs and brochures to mimeographed newsletters such as the Computer Notes (Altair), the Viper (Cosmac VIP) and Ipso Facto.
  • In addition, the collection houses the largest collection of analog computers in North America and includes analog computers from companies such as Electronic Associates Inc., Welch, Donner Scientific and AMF among others. The collection includes several extremely rare analog computers (called analogue computers in England) such as the Pastoriza Personal Analog computer and the Lan-Electronics Analogue Computer.
  • We also have a large number of rare computer documents and objects related to Herman Hollerith who is the first person to use electricity in tabulating data. His Electric Tabulating Machine is one of the foundations of modern computing and it clearly demonstrated that electrical computing would be significantly more efficient than any other known method. Hollerith is also credited with developing the modern punch card system of storing and sorting data (what many of us now call IBM cards).

The EarlyComputers' collection of vintage computers is currently housed near Philadelphia, Pennsylvania. But we have travelled far and wide to find rare computers, obtain vintage documents and interview those who have contributed to the history of computing. Among the places we have travelled are Florida, California, Massachusetts, Virginia, New York, Utah, Kansas, Ohio (yes, we even went to Cleveland), London, England, Bletchley Park, England and Milan, Italy.

What is a "Vintage Computer"?

There are many definitions of what an "early" computer really is. Some say a computer made more than 20 years ago is historical, others argue that a truly vintage computer must be 25 years or even 30 years. The trouble with choosing a timespan like "25 years ago" is that it changes as each year goes by.

We choose to pick a significant date in the history of personal computing. We define early computers as those made before IBM entered the personal computer market in 19811. IBM's entrance into personal computing changed the face of the industry. With IBM's knowledge, marketing and world-wide presence, it instantly became the 800 pound gorilla and not many companies survived. Therefore, our collection is generally limited to items manufactured or printed ON or BEFORE 1981.

For a more detailed definition of what makes a vintage computer, see our article entitled, "What was the first personal computer?". [Coming Soon]

As we develop the website, we hope to give you the opportunity to participate directly online.... the chance to add your stories, your research and your experience to ours. In the meantime, if you are interested in participating, please contact us at

  1. IBM announced its entry into the personal computer market in August 1981. That sounded the death knell for
    many small computer companies that could not compete with IBM.

Copyright © 2013 by Early Computers Project, All Rights Reserved.
(Analogs in blue)
  1. AIM-65 (single board)
  2. AIM-65 (factory case)
  3. AIM-65 (Jon Titus)
  4. ALICE micro-ordinateur
  5. Altair 680
  6. Altair 8800
  7. Altair 8800A
  8. Altair 8800b
  9. Altair 8800b Turnkey (see Pertec below)
  10. Altair 8800b (see Pertec below)
  11. Altos ACS-8000
  12. AMF Educational Computer
  13. Apple II Plus
  14. ASCI SystemX
  15. ASR 33 Teletype
  16. Automatic Teaching Computer Kit
  17. Beckman ElectroComp Electric Heating Computer
  18. Beckman Solid State Fuel Cost Computer
  19. Brainiac K-30
  20. Calif. Computer Systems 2200
  21. CES Ed-Lab 650
  22. Commodore 8032
  23. Commodore 64
  24. Commodore PET 2001
  25. Commodore Super Pet
  26. Compucolor II
  27. Compukit 1
  28. Compukit 1 Deluxe Model
  29. Compukit 2
  30. Compukit UK101
  31. Comspace CT-650
  32. Cosmac Elf (RCA1802)
  33. Cosmac Netronics ELF II
  34. Cosmac VIP
  35. Cromemco System I
  36. Cromemco System III
  37. Cromemco Z-2D
  38. Datapoint 2200
  39. Digi-Comp I (flat box)
  40. Digi-Comp I (square box)
  41. Digital Computer Lab
  42. Dynabyte
  43. Donner 3500
  44. E & L Inst MMD-1
  45. E & L Inst MMD-2
  46. Eagle II
  47. Electric Tabulating Machine (one original counter, 1889)
  48. Electronic Associates TR-10
  49. Electronic Associates TR-10 Model II
  50. Electronic Associates TR-20
  51. Electronic Associates TR-48
  52. Electronic Associates Model 180
  53. Electronic Associates Model 380 Hybrid
  54. Geniac
  55. Google Glass (definitely not vintage)
  56. Heath EC-1 (factory assembled by Heath)
  57. Heathkit EC-1 (kit)
  58. Heathkit ET 3100 trainer
  59. Heathkit H8
  60. Heathkit H9 Video Terminal
  61. Hickok Logic Teaching Sys.
  62. Hickok Servo Teaching Sys.
  63. HP 2115A
  64. HP 85
  65. HP 5036A
  66. HP 9825A
  67. HP 9825B
  68. HP 9830A
  69. Iasis 7301
  70. I-COR MAC-1
  71. ICS Microcomputer Training System
  72. IMSAI 108
  73. IMSAI 8048 Control Computer
  74. IMSAI 8048 (The Dollhouse Computer)
  75. IMSAI 8080
  76. IMSAI PCS-40
  77. IMSAI PCS-80
  78. IMSAI VDP-80
  79. Informer
  80. Intel Intellec MDS
  81. Intel MDS-800
  82. Intel Prompt 48
  83. Intel SBC 80/10
  84. Intel SDK-85
  85. Intel SDK-85 (unassembled)
  86. Intel SDK-86
  87. ITT MP-EX
  88. JR-01 Computer
  89. KIM-1
  90. LAN-DEC
  91. LAN-DEC 20
  92. LAN-ALOG
  93. Lehrcomputer (Germany)
  94. Lawrence Livermore Lab
  95. Lear Siegler ADM3A
  96. Logix SF-5000 Electronic Computer
  97. MAC-1 Mini Analog Computer
  98. MEK6800D2
  99. Micro 68
  100. Microtan 65
  101. Midwest Scientific Instruments 6800
  102. Minivac 601
  103. Minivac 6010
  104. Mini-Scamp Microcomputer
  105. Nascom I
  106. Nascom II
  107. National Radio Institute 832
  108. NEC TK-80
  109. NorthStar Horizon
  110. Olivetti Programma 101
  111. Olivetti Programma 203
  112. Olivetti Programma 602
  113. Open University PT501
  114. Ordinateur d'Apprentissage JR-01
  115. Osborne 1
  116. OSI 300
  117. OSI 600 (SuperBoard II)
  118. OSI C2-OEM-4
  119. OSI Challenger-1P
  120. Pastoriza Personal Analogue Computer
  121. Pertec MITS 300/25 (Altair desk business system)
  122. Pertec MITS 300/55 (Altair Turnkey business system)
  123. PolyMorphic Systems 8810
  124. PolyMorphic Poly-88
  125. Protech-83
  126. Sargent-Welch Scientific Company Cat. No.7528 Analog Computer
  127. Science of Cambridge MK-14 (Sinclair)
  128. SD Systems Z80 starter kit
  129. Sharp MZ-40K
  130. Sharp MZ-80k
  131. Siemens ECB-85
  132. Signetics Instructor 50
  133. Smoke Signal Broadcasting
  134. Sol-20
  135. Spark16
  136. Sphere 1
  137. Sphere/SWTPC Computer System
  138. SWTP CMOS Microlab
  139. SWTP CT-82 Terminal
  140. SWTPC 6800
  141. SWTPC 6800 (w/ Smoke Signal Broadcasting drive)
  142. SWTPC CT-64 Video Terminal, SS-50
  143. SWTPC TV Typewriter II CT-1024
  144. Synertek VIM-1
  145. Synertek SYM-1
  146. Systron-Donner 3500
  147. Tei MCS-112
  148. Tektronix 4006-1
  149. Telefunken RAT 700
  150. TI LCM-1001 (Microprogrammer)
  151. TI LCM-1001 (Microprogrammer)
  152. TI Silent 700 Terminal
  153. TI TM 990/189
  154. Vector 1
  155. Vector 3
  156. Wang 2200
  157. Welch Scientific Company Cat. No.7528 Analog Computer
  1. Chameleon Plus
  2. Commodore SX64
  3. Epson HX-20
  4. Kaypro I
  5. Kaypro II
  6. Kaypro 2x
  7. Kaypro 16
  8. Osborne 1
  9. Panasonic Senior Partner
  10. Visual Commuter
  1. Babbage's Calculating Engine (1834)
  2. Electric Tabulating Machine (1889, Herman Hollerith's personal copy)
  3. The Hollerith Electric Tabulating System (1890)
  4. Counting a Nation by Electricity (1891)
  5. Moore School Lectures Vol. II (1947)
  6. Mathematical Theory of Communication (1948)
  7. Communication Theory of Secrecy Systems (1949)
  8. The "Moore's Law" article (Electronics, 1965)
  9. Printout from Babbage's Difference Engine #2 (London Science Museum, 2004)

ADDED November 30, 2013
       1969 Kitchen Computer
ADDED December 21, 2013
       1969 Kitchen Computer Press Releases
       Theory and Techniques from the Moore
School Lectures, Summer 1946