Posts contrassegnato dai tag ‘U.S.A.’

TRS-80 Micro Color Computer (MC-10)

Pubblicato: giugno 24, 2011 in Tandy
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From Wikipedia, the free encyclopedia

A cousin of the CoCo, The MC-10, or Micro Color Computer, was sold in Radio Shack stores as a lower cost, more entry-level computer than the CoCo. Released in 1983, it was similar in appearance to the Timex Sinclair. It also used the MC6847 VDG and Microsoft Basic, but featured the MC6803 instead of the 6809. It was just as bare-bones as the little Timex Sinclair model as well, lacking such things as an 80 column printer and disk storage system, as well as a “real” keyboard. Accordingly, it did not sell well and was withdrawn after just two years of production.[8] An MC-10 clone, the Sysdata Tcolor, was available in Brazil with 16 KB ROM.

TRS-80 CoCo3

Pubblicato: giugno 24, 2011 in Tandy
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From Wikipedia, the free encyclopedia

Color Computer 3 (1986–1991)

On July 30, 1986, Tandy announced the Color Computer 3 at the Waldorf-Astoria Hotel in New York City. It came with 128K of RAM, which could be upgraded to 512K. The keyboard surround and cartridge door plastic were changed from black to grey. The keyboard layout was revised, putting the arrow keys in a diamond configuration and adding CTRL, ALT, F1 and F2 keys. It sold in Radio Shack stores and Tandy Computer Centers for $219.95. (altro…)

TRS-80 CoCo2

Pubblicato: giugno 24, 2011 in Tandy
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From Wikipedia, the free encyclopedia

Color Computer 2 (1983–1986)

During the CoCo 1 production run, much of the discrete support circuitry had been re-engineered into a handful of custom integrated circuits, leaving much of the circuit board area of the CoCo 1 as empty space. To cut production costs, the case was shortened by about 25% and a new, smaller power supply and motherboard were designed. The “melted” keyboard from the white CoCo 1 and the TDP-100 style ventilation slots were carried over. Aside from the new look and the deletion of the 12 volt power supply to the expansion connector, the computer was essentially 100% compatible with the previous generation. The deletion of the 12 volt power supply crippled some peripherals such as the original floppy disk controller, which then needed to be upgraded, installed in a Multi-Pak interface, or supplied with external power. (altro…)

TRS-80 CoCo1

Pubblicato: giugno 24, 2011 in Tandy
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From Wikipedia, the free encyclopedia

The Radio Shack TRS-80 Color Computer (also marketed as the Tandy Color Computer and affectionately nicknamed CoCo) was a home computer launched in 1980. It was one of the earliest of the first generation of computers marketed for home use in English-speaking markets. While the model was eventually eclipsed by the onset of the IBM PC clones, enthusiasts have continued to affectionately tinker with the “CoCo” to the present day. (altro…)

Texas Instruments TI-99/4A

Pubblicato: giugno 24, 2011 in Texas Instruments
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From Wikipedia, the free encyclopedia

The Texas Instruments TI-99/4A was an early home computer, released in June 1981, originally at a price of USD $525. It was an enhanced version of the less-successful—and quite rare—TI-99/4 model, which was released in late 1979 at a price of $1,150. The TI-99/4A added an additional graphics mode, “lowercase” characters consisting of small capitals, and a full travel keyboard. Its predecessor, the TI-99/4, featured a calculator-style chiclet keyboard and a character set that lacked lowercase text. (altro…)

Atari Pong C-100

Pubblicato: giugno 24, 2011 in Atari
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From Wikipedia, the free encyclopedia

The success of Pong resulted in Bushnell pushing his employees to create new products.[4][16] In 1974, Atari engineer Harold Lee proposed a home version of Pong that would connect to a television: Home Pong. The system began development under the codename Darlene, named after an attractive female employee at Atari. Alcorn worked with Lee to develop the designs and prototype, and based them on the same digital technology used in their arcade games. The two worked in shifts to save time and money; Lee worked on the design’s logic during the day, while Alcorn debugged the designs in the evenings. After the designs were approved, fellow Atari engineer Bob Brown assisted Alcorn and Lee in building a prototype. The prototype consisted of a device attached to a wooden pedestal containing over a hundred wires, which would eventually be replaced with a single chip designed by Alcorn and Lee; the chip had yet to be tested and built before the prototype was constructed. The chip was finished in the later half of 1974, and was, at the time, the highest performing chip used in a consumer product.[16]

Bushnell and Gene Lipkin, Atari’s vice-president of sales, approached toy and electronic retailers to sell Home Pong, but were rejected. Retailers felt the product was too expensive and would not interest consumers. Atari contacted Sears’ Sporting Goods department after noticing a Magnavox Odyssey advertisement in the sporting goods section of its catalog. Atari staff discussed the game with a representative, Tom Quinn, who expressed enthusiasm and offered the company an exclusive deal. Believing they could find more favorable terms elsewhere, Atari’s executives declined and continued to pursue toy retailers. In January 1975, Atari staff set up a Home Pong booth at a toy trade fair in New York City, but was unsuccessful in soliciting orders.[16]

While at the show, they met Quinn again, and, a few days later, set up a meeting with him to obtain a sales order. In order to gain approval from the Sporting Goods department, Quinn suggested Atari demonstrate the game to executives in Chicago. Alcorn and Lipkin traveled to the Sears Tower and, despite a technical complication, obtained approval. Bushnell told Quinn he could produce 75,000 units in time for the Christmas season, however, Quinn requested double the amount. Though Bushnell knew Atari lacked the capacity to manufacture 150,000 units, he agreed.[16] Atari acquired a new factory through funding obtained by venture capitalist Don Valentine. Supervised by Jimm Tubb, the factory fulfilled the Sears order.[17] The first units manufactured were branded with Sears’ “Tele-Games” name. Atari later released a version under its own brand in 1976.[18]

Apple IIc

Pubblicato: giugno 24, 2011 in Apple
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Da Wikipedia, l’enciclopedia libera.

L’Apple IIc, presentato in aprile del 1984, era stato pubblicizzato come un “Apple II portatile”: effettivamente, pur non essendo paragonabile ad un moderno notebook data la mancanza di un monitor integrato e di un sistema di alimentazione a batteria, possedeva per l’epoca dimensioni e peso ridotti, permettendo di essere trasportato facilmente anche grazie ad una maniglia retrattile.

È stato il primo modello a seguire lo standard di design chiamato “Snow White” (Biancaneve), caratterizzato da un colore bianco o grigio chiaro e dalla presenza di scanalature, elementi che caratterizzeranno la produzione Apple fino all’inizio degli anni novanta. (altro…)

Atari 800

Pubblicato: giugno 24, 2011 in Atari
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From Atarimuseum.com

In 1978 Atari was working on a new chip set for an all new high end video game system.    Ray Kassar became the new CEO of Atari and decided that Atari should produce a line of computers to compete against Apple in the home computer field.   It was decided that the new chip set was to be “frozen” and used only for the new computer systems.   Atari’s all new computer division was born.

Atari would introduce a new line of personal computers based around the MOS 6502 8 bit Processor.   Using the new graphics/audio chip set the computer would come packaged with graphics and sound never before seen in a personal computer system.    Capable of producing up to 128 colors using the CTIA chip (Colleen Television Interface Adapter) and later updated to 256 colors using a GTIA chip (General Television Interface Adapter) and with a maximum resolution of 320 X 192 the new line of Atari computer systems would have spectacular graphics for a system released in 1979. (altro…)

Apple IIe

Pubblicato: giugno 24, 2011 in Apple
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From Wikipedia, the free encyclopedia

The Apple IIe is the third model in the Apple II series of personal computers produced by Apple Computer. The e in the name stands for enhanced, referring to the fact that several popular features were now built-in that were only available as upgrades and add-ons in earlier models. It also improved upon expandability and added a few new features, which, all combined, made it very attractive to first-time computer shoppers as a general-purpose machine. The Apple IIe has the distinction of being the longest-lived computer in Apple’s history, having been manufactured and sold for nearly 11 years with relatively few changes. (altro…)