Portal (computer)

Portal[1] R2E CCMC was a portable microcomputer designed and marketed by the studies and developments department of the French firm R2E[2] Micral and officially appeared in September 1980 at the Sicob[3] show in Paris.[4] The Osborne 1 was released eight months later, in April 1981.[5] specializing in payroll and accounting.

Micro ordinateur portable le PORTAL de R2E CCMC.jpg
DeveloperFrançois Gernelle
ManufacturerR2E Micral
TypePortable computer
Release dateSeptember 1980; 42 years ago (1980-09)
Mediafloppy disk
Operating systemPrologue
CPUIntel 8085 @ 2 MHz
Memory64 kB RAM
Dimensions45 × 45 × 15 cm
Mass12 kg

Several hundred examples were sold between 1980 and 1983.

Extremely rare, no museum has a Portal; 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 the last examples of which 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 Computer Museum + Labs.[9][10][7]


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

It was equipped with 64 kB of main RAM, a keyboard with 58 alphanumeric keys and 11 numeric keys (in separate blocks), a 32-character 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. Designed for an operating temperature of 15 °C to 35 °C, it weighed 12 kg and its dimensions were 45 × 45 × 15 cm. It provided total mobility.

See alsoEdit


  1. ^ a b "R2E Portal". www.system-cfg.com. Retrieved 2022-11-10.
  2. ^ "System.cfg - Base de données". www.system-cfg.com. Retrieved 2022-11-10.
  3. ^ "Portal au Sicob". blog.museeinformatique.fr. Archived from the original on 2017-08-16. Retrieved 2017-07-13.
  4. ^ Lilen, Henri. la saga du micro-ordinateur.
  5. ^ "Pièce comptable Portal". Archived from the original on 2017-08-16.
  6. ^ ROUILLAC, Aymeric (2017-08-21). "Cet exemplaire en état de marche sera vendu aux enchères le 22 septembre 2017".
  7. ^ a b "Vente aux enchères du Centre de Création Contemporaine Olivier Debré à Tours" (PDF). 21 August 2017.
  8. ^ "R2E Micral N". www.system-cfg.com. Retrieved 2022-11-10.
  9. ^ "The Micral N, the First Microcomputer, to be Sold at Auction in June - Life in France". Life in France. 2017-05-13. Retrieved 2017-07-26.
  10. ^ "C'est maintenant officiel : Paul G.... - Aymeric Rouillac | Facebook".
  11. ^ "Plaquette Portal". blog.museeinformatique.fr. Archived from the original on 2017-08-16. Retrieved 2017-07-13.


François Gernelle, Portal designer


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