--- title: Leanord Silex categories: - Computers types: - Professional Computer origins: - France years: - '1979' cpus: - NMOS 6502 params: name: Silex image: /media/museum/photos/leanord_silex_1s.jpg company: /companies/leanord company_name: Leanord specs: - label: NAME value: Silex - label: MANUFACTURER value: Leanord - label: TYPE value: Professional Computer - label: ORIGIN value: France - label: YEAR value: September ? 1979 - label: END OF PRODUCTION value: Unknown - label: BUILT IN LANGUAGE value: Monitor (2 KB) + Basic (6 KB). Extended Basic in option (10 KB) - label: KEYBOARD value: Full stroke QWERTY keyboard with numeric and function keypads. AZERTY available in option. - label: CPU value: NMOS 6502 - label: SPEED value: 1 MHz - label: CO-PROCESSOR value: Unknown - label: RAM value: 32 KB, 48 KB or 64 KB depending on versions - label: ROM value: 8 KB (2 KB monitor + 6 KB Basic) - label: TEXT MODES value: 40 x 24, 80 x 24 in option - label: GRAPHIC MODES value: 280 x 192 - label: COLORS value: 12'' monochrome built-in display - label: SOUND value: Unknown - label: SIZE / WEIGHT value: 35 (h) x 54 (l) x 59 (d) cm / 20 Kg - label: I/O PORTS value: Unknown - label: BUILT IN MEDIA value: |- built-in 5.25'' disk-drive (143 KB)\ 5.25'' 650KB high density and 8'' disk drives (1 MB and 2 MB)available in option as well as 10 MB hard disk - label: OS value: Unknown - label: POWER SUPPLY value: Built-in power supply - label: PERIPHERALS value: External disk drives (single & double), printers, A/D convertors, hard disk, 16 KB memory expansion, modem, real time clock, IEEE S 840 bus - label: PRICE value: 29 400 F (France, 1979) tabs: - photos - adverts - docs photos: - title: SILEX subtitle: '' text: '' image: /media/museum/photos/leanord_silex_1.jpg adverts: - title: FRENCH ADVERT (NOV. 1979) subtitle: '' text: |- This is the only SILEX advert known so far... It says : "Silex, a stone in our competitors garden." Silex means flint in french, a stone mainly used in prehistoric times as tools and weapons. image: /media/museum/pubs/leanord_silex_pub_1.jpg - title: FRENCH ARTICLE subtitle: '' text: |- ...released in "l'Ordinateur Individuel" magazine n°12 Thanks to Fabien Neck and its [website](http://www.system-cfg.com/) for this scan image: /media/museum/pubs/leanord_silex_oi12.jpg - title: SILEX DOCUMENTATION subtitle: '' text: '' image: /media/museum/pubs/leanord_silex_doc1.jpg docs: - title: LEANORD SILEX COMMERCIAL BROCHURE url: http://ksinfos.perso.sfr.fr/Articles/Leanord/silex.htm cover: /media/museum/docs/couvs/leanor_silex_doc_couv.jpg text: |- [**LEANORD SILEX COMMERCIAL BROCHURE**](http://ksinfos.perso.sfr.fr/Articles/Leanord/silex.htm)written by Leanord  compiled/archived by Carl Hervier\  type of document : Online reader\  source : [Retro Computing](http://ksinfos.perso.sfr.fr/) **... READ THE ONLINE VERSION BY CLICKING BELOW :** comments: - author: Dan (France) date: Saturday 9th April 2011 text: |- Hi,\ I ''ve worked in the plant (town :Haubourdin), and the Sil''z was an Apple 2 machine with some enhancements (graphics) in a hard case (aluminium), and with a better power supply, built in video CRT and strong keyboard\ It was possible to connect 8" drives (I''ve writted routines for that, in 6502 assembly and Pascal UCSD\ On the picture, on the right,it''s a 5.25" disk-drive - author: Yan (Brazil) date: Monday 2nd December 2019 text: Looking at the random systems I first fell into the "Darlay DY 80" page and now in this "Leanord Silex", both Made in France. Seems to me that the French are as good making computers as they are making cars. LoL. :D oc_id: 1027 source: url: https://web.archive.org/web/20230608074904/http://www.old-computers.com/museum/computer.asp?c=1027 date: '2023-06-08' --- Little is known about this computer. Help welcomed ! Silex means flint in french, a stone mainly used in prehistoric times as tools and weapons. The SILEX is a professional computer released in 1979 by the french company Leanord. It was conceived from a modified Apple II board. It has a professional keyboard with function keypad and numeric keypad. The display is built-in the system. It is monochrome but has graphic capabilities (280 x 192) and can display 40 x 24 characters (80 x 24 in option). To the right of the display is a 5.25'' disk-drive built-in the case (143 KB). Additional storage media will be available later (high density disk drives and hard disks). Different languages were available : extended BASIC (in english and in french!), PASCAL, "evoluated disk operating system"... The fact that there is so little information about the Silex, makes us believe that it had a very short life, at least under this name, since [SIL'Z systems](/museum/leanord-sil-z-model-5-6/) from the same company seem to be an evolution of the Silex. SIL'Z systems had some success, particularly in french administrations and schools.
We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.