[1970s] stanley brouwn, 100 this-way-brouwn-problems for computer I.B.M. 360 mod…

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[1970s] stanley brouwn, 100 this-way-brouwn-problems for computer I.B.M. 360 model 95 New York/Cologne, Verlag Gebr. König, 1970. Softcover, 23 x 23 cm, 208 pages of which 104 are printed with conceptual texts in English. Limited edition of only 300 copies. Moderate soiling to cover, small stain on front. Interior with light yellowing of paper along edges, first page has traces of removed stickers. Extremely rare, generally a fine copy.

6166

[1970s] stanley brouwn, 100 this-way-brouwn-problems for com

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Estim. 1 000 - 1 500 EUR

Apple Macintosh Portable - From the Collection of Apple Product Manager Dennis Gobets Original Apple Macintosh Portable computer (40MB) personally owned by Apple production manager Dennis Gobets. This early Apple laptop, Model M5120, Serial no. F3026N43M58, measures approximately 15.25″ x 14.25″ x 4″ when closed, with a monochrome screen, 80-key keyboard with numeric keypad, built-in trackball mouse, 1MB of memory, and 40 MB of storage. The unit includes its original battery, Apple carrying case, an ‘Apple Desktop Bus Mouse,’ and two name tags. The original power cord is no longer present. The computer is sold as is and is in fine, untested condition, with a small chip to the left side. Apple's very first battery-powered computer, the Macintosh Portable was a total failure when it was released in 1989. It was slow, expensive, and heavy—earning the unwanted nickname 'The Luggable' due to its 16-pound weight and less than one hour of battery life. While voted one of the worst tech gadgets of all time, the Portable holds the title as the first computer to ever send an email from space. It did, however, pave the way for the Powerbook 100—which has since been named the 10th greatest personal computer of all time.

Estim. 300 - 500 EUR

Apple Computer Baseball Shirt Appealing baseball-style button-down Apple Computer shirt, size extra large, 100% cotton, with off-white body, dark blue sleeves, and the left chest bearing a red Apple logo. The inner collar bears an MV Sport tag. This shirt was once available for purchase from the Apple catalog. In fine condition.

Estim. 3 000 - 4 000 EUR

J. Presper Eckert Autograph Speech Draft Archive: “Computers of the 70s / Yesterday, Today and Tomorrow in Computer Technology” Electrical engineer and computer pioneer (1919-1995) who designed the first general-purpose electronic digital computer (ENIAC) with John Mauchly, and designed the first commercial computer in the United States (the UNIVAC). J. Presper Eckert's handwritten rough draft and hand-corrected drafts of a speech delivered in Zurich, Helsinki, and Tokyo, circa 1970, highlighted by a 26-page autograph draft (headed "Computers of the 70s by J. Presper Eckert") and a hand-corrected typed draft (entitled "Yesterday, Today and Tomorrow in Computer Technology"), comprising 12 typed pages plus 16 pages of handwritten insertions. Additionally includes a 12-page photocopy of the speech, an 8-page photocopy of galley proofs of the speech, and several pages of original and mimeographed correspondence, telegrams, and papers related to Eckert's travels and speaking engagements. Eckert's address amounts to a history of computer memory technology since his co-creation of ENIAC, with important predictions for the future. In part: "When John Mauchly and I started in 1943 to study electronic computers, we recognized many new problems. Let me review some of these problems and see where we stand on them today. Before doing that, however, in 1943, a mechanical machine called the Mark I had already been started at Harvard University. This machine was already over 100 times faster than an unaided man in doing arithmetic, but it was electro-mechanical. It could have led to relay machines 100 times faster than itself or 10,000 times faster than man. However, Mauchly and I decided to leapfrog such developments and build a self-operating machine to be called ENIAC. It was 1,000 times the speed of Mark I or 100,000 times the speed of man. Since then, machines have been announced which are over 1,000 times the speed of ENIAC and are thus 100,000,000 times the speed of a human being with pencil and paper. Perhaps the major problem of building an electronic computer in the beginning was the high-speed memory required. In ENIAC it consisted of tubes, relays, plugs, switches, and resistor arrays. It cost between $25 and $500 per digit depending on whether it was read-only memory, set by switches, or fully electronic flip-flop memory. Today I believe our best solution to this problem, except for small memories, say less than 100,000 bits, is some sort of magnetic thin film memory. The most practical so far is the plated wire memory now in use for several years. This now costs no more than equivalent core memory and is faster, more compact, and takes less power. Present wire memories are hundreds of times faster than most of the memory in ENIAC. Further development on this wire memory will drive the cost of wire memory down to less than one cent per bit, in sizes of 10,000,000 bits or more. Wire film memories of the 70's will probably be less expensive than core memories and less expensive than semi-conductor memories of equivalent size and speed. We already have experimental wire memory arrays which can read and write in less than one-tenth of a microsecond. Calculations indicate that a memory cycle of a microsecond (50 nanoseconds) seems possible based on present wire and semi-conductor limitations. By interlacing several wire memories in time and by properly anticipating the conditional transfers which occur in a routine, a speed of 5 to 10 times the fastest computers announced today can probably be achieved. And without resort to complex buffer or cache memory arrangements used in some of today’s newest computers." In overall fine condition.

Estim. 20 000 - 25 000 EUR

Digital Equipment Corporation (DEC) PDP-8 Minicomputer Collection Comprehensive collection of vintage hardware, software, and documentation for the Digital Equipment Corporation (DEC) PDP-8 minicomputer—one of the first commercially successful minicomputers, informally known as the 'Straight-8.' Introduced in 1965 as the first transistorized microcomputer to retail for under $20,000, its relatively low cost and compact size revolutionized the industry, paving the way for widespread adoption of digital computing. Historical records indicate that 1,450 'Straight 8s' were manufactured and today only a handful of complete systems are known to still exist. Designed by DEC engineer Edson DeCastro, the PDP-8's use of diode-transistor logic and modular design set new standards for future computer engineering. The PDP-8 utilizes diode transistor logic (DTL) implemented on printed circuit boards known as “FlipChips,” DECs name for its logic modules. The PDP-8 is a 12 bit computer with 4096 12 bits of core (nonvolatile magnetic memory) with the capability of being expanded to 32K. In its heyday, the PDP-8 was used for real time data acquisition, typesetting, and general purpose computing using languages such as BASIC, FOCAL, FORTRAN, and ALGOL. Instructions and data are toggled into the machine’s memory via the switches on the computer’s front panel. This PDP-8 appears to have been initially purchased by University Computing Company of Texas, as evidenced by the asset tag on the computer’s frame; it also came with a custom silk-screened panel identifying it as one from a University Computing Company remote terminal, implying that the that the computer may have been used as a remote terminal concentrator as UCC provided contract computer services in the 1960s. It was subsequently purchased by the present owner in 1975 and used as a hobby computer until the early 2000s. This PDP-8 system includes an ASR-33 teletype hardcopy terminal as well as additional racks and supplementary hardware, including 213 spare FlipChips of various types, three TU55 DECtape drives installed in a DEC H960 tall rack (albeit without a TC01 DECtape controller), two additional H960 racks containing power distribution controllers as well as power supplies, a wire wrap backplane and an RK05 disk storage shelf. A DEC H967 heavy duty short rack also accompanies the system. A library of paper tape software included with the system has over 290 individual tapes cataloged. Most of the tapes are DEC and DECUS (Digital Equipment Computer User Society) original tapes. There are also copies of original DEC/DECUS tapes included as well as evolutionary updates to the diagnostic programs. The library includes hardware diagnostics, known as “MAINDECS” as well as languages, utility programs, and system builder programs. Software documentation includes approximately 128 documents for programs. Hardware documentation is comprised of manuals, including two copies the PDP-8 Maintenance Manual, engineering drawings, Users Handbook, Small Computer Handbook 66-67 First Edition, various editions of the DEC Logic Handbook describing the various FlipChips. Much of the documentation was obtained from the High Energy Physics group at Case Western Reserve University when they retired their PDP-8 systems in the early 1980s. A detailed prospectus prepared by the consignor, offering a comprehensive overview of the system and its individual components, is available online at RRAuction.com. This system will be crated and shipped from Ohio; the buyer is responsible for all associated costs.

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