Portal (computer)

Short description: 1980 portable microcomputer

Portal

Developer| François Gernelle
Manufacturer| R2E Micral
Type| Portable computer
Release date| September 1980; 45 years ago (1980-09)
Discontinued| 1983; 43 years ago (1983)
Units sold| Hundreds
Operating system| Prologue, Basic Assembly Language (BAL)
CPU| Intel 8085 @ 2 MHz
Memory| 64 kB RAM
Removable storage| Floppy disk
Display| 32-character one-line screen
Power| 220-volt
Dimensions| 45 × 45 × 15 cm
Mass| 12 kg

Portal R2E CCMC was a portable microcomputer designed and marketed by the Réalisation et Etudes Electroniques department of the French firm R2E Micral,[1] and officially appeared in September 1980 at the Sicob show in Paris.[2][3] Osborne 1, the first commercially successful portable computer, was only released eight months later, on 3 April 1981.[4][5]

The machine was designed with a focus on payroll and accounting. Several hundred Portal computers were sold between 1980 and 1983.

Extremely rare, no museum has a Portal, and only two are in private collections.[6][7]

The company R2E Micral is also known to have designed "the earliest commercial, non-kit computer based on a microprocessor", the Micral N.[8] One of these machines was sold for 62,000 euros to Paul G. Allen, the co-founder of Microsoft (with Bill Gates), by the auctioneer Rouillac on June 11, 2017, for Allen's Seattle museum, Living Computers: Museum + Labs.[9][10][7]

## Contents

* 1 Specifications
* 2 See also
* 3 References
* 4 Bibliography
* 5 Sources

## Specifications

The Portal was based on an Intel 8085 processor, 8-bit, clocked at 2 MHz.[1][11]

It was equipped with 64 kB of main RAM, a keyboard with 58 alphanumeric keys and 11 numeric keys (in separate blocks), a LED 32-character one-line screen, a floppy disk (capacity - 140000 characters), a thermal printer (speed - 28 characters/second), an asynchronous channel, a synchronous channel, and a 220-volt power supply.[1][11]

It came with two operating systems: Prologue and Basic Assembly Language (BAL).[1]

Designed for an operating temperature of 15 °C to 35 °C, it weighed 12 kg and its dimensions were 45 × 45 × 15 cm.[1][11]

## See also

* R2E Micral
* Laptop § History

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 "Base de données - R2E Portal". 2018. https://www.system-cfg.com/detail.php?ident=877.
2. ↑ "Portal au Sicob". http://blog.museeinformatique.fr/attachment/126350/.
3. ↑ Lilen, Henri. la saga du micro-ordinateur.
4. ↑ "Pièce comptable Portal". http://blog.museeinformatique.fr/attachment/126351/.
5. ↑ Spector, Lincoln (2010-05-31). "A History of Portable Computing". https://www.pcworld.com/article/197457/History_of_Portable_Computing.html.
6. ↑ Rouillac, Aymeric (2017-08-21). "Cet exemplaire en état de marche sera vendu aux enchères le 22 septembre 2017". https://www.facebook.com/rouillac/posts/10155683670608824?pnref=story.
7. ↑ 7.0 7.1 "Vente aux enchères du Centre de Création Contemporaine Olivier Debré à Tours". 21 August 2017. https://www.rouillac.com/sdoc-677291-c33371575930a08332023a612c8e94c5-artsdesign_rouillac_cccod_22_09_2017.pdf.
8. ↑ "R2E Micral N". https://www.system-cfg.com/detail.php?ident=811.
9. ↑ "The Micral N, the First Microcomputer, to be Sold at Auction in June" (in en-GB). Life in France. 2017-05-13. http://chb44.com/2017/05/micral-n-first-microcomputer-sold-auction-june/.
10. ↑ "C'est maintenant officiel: Paul G.... - Aymeric Rouillac". https://www.facebook.com/rouillac/posts/10155667610863824.
11. ↑ 11.0 11.1 11.2 "Plaquette Portal". http://blog.museeinformatique.fr/attachment/126348/.

## Bibliography

François Gernelle, Portal designer

## Sources

This article is derived partly from the page of old-computers.com and feb-patrimoine.com.

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