website/content/museum/leanord-silex.md

title, categories, types, origins, years, cpus, params

title	categories	types	origins	years	cpus	params
Leanord Silex	Computers	Professional Computer	France	1979	NMOS 6502	name image company company_name specs tabs forum_thread photos adverts docs oc_id source Silex /media/museum/photos/leanord_silex_1s.jpg /companies/leanord Leanord label value NAME Silex label value MANUFACTURER Leanord label value TYPE Professional Computer label value ORIGIN France label value YEAR September ? 1979 label value END OF PRODUCTION Unknown label value BUILT IN LANGUAGE Monitor (2 KB) + Basic (6 KB). Extended Basic in option (10 KB) label value KEYBOARD Full stroke QWERTY keyboard with numeric and function keypads. AZERTY available in option. label value CPU NMOS 6502 label value SPEED 1 MHz label value CO-PROCESSOR Unknown label value RAM 32 KB, 48 KB or 64 KB depending on versions label value ROM 8 KB (2 KB monitor + 6 KB Basic) label value TEXT MODES 40 x 24, 80 x 24 in option label value GRAPHIC MODES 280 x 192 label value COLORS 12'' monochrome built-in display label value SOUND Unknown label value SIZE / WEIGHT 35 (h) x 54 (l) x 59 (d) cm / 20 Kg label value I/O PORTS Unknown label value BUILT IN MEDIA 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 value OS Unknown label value POWER SUPPLY Built-in power supply label value PERIPHERALS External disk drives (single & double), printers, A/D convertors, hard disk, 16 KB memory expansion, modem, real time clock, IEEE S 840 bus label value PRICE 29 400 F (France, 1979) photos adverts docs 1001 title subtitle text image SILEX /media/museum/photos/leanord_silex_1.jpg title subtitle text image FRENCH ADVERT (NOV. 1979) 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. /media/museum/pubs/leanord_silex_pub_1.jpg title subtitle text image FRENCH ARTICLE ...released in "l'Ordinateur Individuel" magazine n°12 Thanks to Fabien Neck and its [website](http://www.system-cfg.com/) for this scan /media/museum/pubs/leanord_silex_oi12.jpg title subtitle text image SILEX DOCUMENTATION /media/museum/pubs/leanord_silex_doc1.jpg title url cover text LEANORD SILEX COMMERCIAL BROCHURE http://ksinfos.perso.sfr.fr/Articles/Leanord/silex.htm /media/museum/docs/couvs/leanor_silex_doc_couv.jpg [**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 :** 1027 url date https://web.archive.org/web/20230608074904/http://www.old-computers.com/museum/computer.asp?c=1027 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 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.