--- title: ADD-X Système SMP-8 categories: - Computers types: - Professional Computer origins: - France years: - '1981' cpus: - Z80 params: name: SMP-8 image: /media/museum/photos/addx_smp8_system_s1.jpg company: /companies/add-x-systeme company_name: ADD-X Système specs: - label: NAME value: SMP-8 - label: MANUFACTURER value: ADD-X Système - label: TYPE value: Professional Computer - label: ORIGIN value: France - label: YEAR value: '1981' - label: END OF PRODUCTION value: Unknown - label: BUILT IN LANGUAGE value: None - label: KEYBOARD value: Full-stroke 97 key with editing and numeric keypads - label: CPU value: Z80 - label: SPEED value: Unknown - label: RAM value: 64 kb + up to 256 KB dedicated to workstations - label: ROM value: 2 KB + 2 KB per workstation card - label: TEXT MODES value: 80 columns x 24 lines - label: GRAPHIC MODES value: None - label: COLORS value: Monochrome - label: SOUND value: No sound - label: SIZE / WEIGHT value: 46.5 (W) x 51 (D) x 17.5 (H) cm - label: I/O PORTS value: 2 x Parallel, 3 x Serial, up to 8 Serial worstation ports - label: BUILT IN MEDIA value: 2 x 1Mb floppies - label: OS value: MP/M, CP/M - label: POWER SUPPLY value: Built-in PSU - label: PERIPHERALS value: 20 MB hard disk drive - label: PRICE value: from 7600 tabs: - photos - adverts forum_thread: 500 photos: - title: SM1 LARGE VIEW subtitle: '' text: '' image: /media/museum/photos/addx_smp8_system_s2.jpg - title: 'SM1 #2' subtitle: '' text: '' image: /media/museum/photos/addx_smp8_system_s3.jpg - title: COMPLETE SYSTEM subtitle: '' text: Complete system with a dual 1.2 MB 8" floppy disk drive unit and a Bull 'Minidisk' 20 MD hard disk unit. image: /media/museum/photos/addx_smp8_completesystem_s1.jpg - title: KEYBOARD CLOSE-UP subtitle: '' text: Notice the numerous LEDs which inform the user of the actual state of the serial and parallel communications with the main unit and printer. image: /media/museum/photos/addx_smp8_keyboard_s1.jpg - title: SM1 REAR SIDE subtitle: '' text: |- **(1)** Dip-switches for the terminal serial communication adjustments\ **(2)** Serial connector\ **(3)** Parallel printer connector\ **(4)** Floppy disk unit interface\ **(5)** Hard disk drive interface\ **(6)** Serial printer connectors\ **(7)** Parallel printer connectors\ **(8)** 7 workstation USART and com ports image: /media/museum/photos/addx_smp8_rear_s1.jpg - title: SM2 REAR SIDE subtitle: '' text: The SM2 could manage up to 8 workstations. image: /media/museum/photos/addx_smp8_rear_s2.jpg - title: INSIDE MAIN UNIT subtitle: '' text: The logic cards are inserted on both sides of a back plane mounted vertically. image: /media/museum/photos/addx_smp8_inside_s0.jpg - title: 'INSIDE #2' subtitle: '' text: The workstation cards are mounted on the right side. Each card features a Z80 processor, 64 KB of RAM (32 x 4116 chips) and can manage 2 independent workstations. image: /media/museum/photos/addx_smp8_inside_s1.jpg - title: 'INSIDE #3' subtitle: '' text: On the right-hand side one finds the main CPU card (the upper one), and four I/O cards in charge of the FDD, HDD, workstations, Parallel and Serial printer management. image: /media/museum/photos/addx_smp8_inside_s2.jpg - title: CPU BOARD subtitle: '' text: The CPU card (Z80 processor and 64 KB of RAM) is very like the workstation cards. image: /media/museum/photos/addx_smp8_cpuboard_s1.jpg - title: FD UNIT subtitle: '' text: '' image: /media/museum/photos/addx_smp8_dual8fd_s1.jpg - title: INSIDE FD UNIT subtitle: '' text: The 8", 1.2 MB floppy disk drives came from Magnetic Peripherals, Inc., a subsidiary of Control Data. image: /media/museum/photos/addx_smp8_insidefd_s1.jpg - title: BULL MINIDISK subtitle: '' text: The Bull 'Minidisk' (About 40 kg!) contains a 5" 20 MB fixed hard disk drive and a removable 10 MB cartridge drive. image: /media/museum/photos/addx_smp8_bulldisk_s1.jpg - title: INSIDE MINIDISK subtitle: '' text: Several Honeywell-Bull systems and other French manufacturers used this massive storage device which allowed easy backup of a 20 MB hard disk onto two removable 10 MB hard disk cartridges. image: /media/museum/photos/addx_smp8_insidebulldisk_s1.jpg - title: VIDEO TERMINAL subtitle: '' text: The video terminal came from Facit, in Sweden. However, the logic board was made by the Tandy Corporation. image: /media/museum/photos/addx_smp8_insideterminal_s1.jpg - title: 'VIDEO TERMINAL #2' subtitle: '' text: Dip switche configuration diagram. image: /media/museum/photos/addx_smp8_terminalrear_s1.jpg - title: IN USE... subtitle: '' text: This is worth a ''stupid scan'' :-) image: /media/museum/photos/addx_super-micro_use_1.jpg adverts: - title: FRENCH ADVERT (JAN. 1982) subtitle: '' text: '"French people talking to french people"' image: /media/museum/pubs/addx_pub_des-francais.jpg oc_id: 506 source: url: https://web.archive.org/web/20230528090835/http://www.old-computers.com/museum/computer.asp?c=506 date: '2023-05-28' --- This is a French professional computer conceived by ADD-X Systèmes based at Blagnac (Toulouse). It was a CP/M, MP/M compatible system powered by a Z80, with 64k RAM. It had 2.4 MB on floppies but an optional 20 MB hard-disk could be added. It was followed by the **[SMP-5](/museum/add-x-systeme-smp-5/)**. There were also two other models, the **SM1** and **SM2** which were quite similar technically (Z80, 64k RAM), but could be expanded to multipost configurations with up to 8 stations. The SM2 had a CII-HB D140 hard-disk (20 MB) built-in whereas the SM1 had only a 2 MB floppy-drive.
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.