yann64andClaude Opus 5.5
b274874139
1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
174 lines
7.3 KiB
Markdown
174 lines
7.3 KiB
Markdown
---
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title: Spectravideo SV 318
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- U.S.A.
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years:
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- '1983'
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cpus:
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- Zilog Z80A
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params:
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name: SV 318
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image: /media/museum/photos/spectravideo_sv-318_2022_1s.jpg
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company: /companies/spectravideo
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company_name: Spectravideo
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specs:
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- label: NAME
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value: SV 318
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- label: MANUFACTURER
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value: Spectravideo
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: U.S.A.
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- label: YEAR
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value: January 1983
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- label: BUILT IN LANGUAGE
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value: SV Extended Basic (by Microsoft)
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- label: KEYBOARD
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value: 71 keys, rubber keyboard with built-in joystick
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- label: CPU
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value: Zilog Z80A
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- label: SPEED
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value: 3.6 MHz
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- label: CO-PROCESSOR
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value: TMS9918A graphics chip, and AY-3-8910 sound chip
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- label: RAM
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value: 16 KB (up to 144 KB), 12 KB free for programmation with Basic
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- label: VRAM
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value: 16 KB
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- label: ROM
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value: 32 KB
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- label: TEXT MODES
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value: 40 x 24
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- label: GRAPHIC MODES
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value: 256 x 192 in 16 colors / 64 x 48 in 16 colors
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- label: COLORS
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value: '16'
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- label: SOUND
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value: AY-3-8910 sound chip offering 3 channels and 8 octaves
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- label: I/O PORTS
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value: video output, cartridge slot, expansion port, tape, joysticks (2)
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- label: OS
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value: CP/M optional with disk-drives
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- label: POWER SUPPLY
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value: External power supply. 9V AC & 16V AC out
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- label: PERIPHERALS
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value: SVI-903 Data Cassette Recorder, SV-601 Super Expander, SV-602 Single Slot Expander, SV-902 Floppy Disk drive (external), SV-901 Dot Matrix Printer, SV-805 RS-232 Interface, SV-105 Graphic Touch Tablet, SV-803 16K RAM Pack, SV-807 64K RAM Pack, SV-802 Centronics Interface, SV-701 Smart Modem, SV-801 Dual Disk Drive Controller, SV-806 80-Column Display adapter, SV-603 Coleco Game Adapter, SV-101 Quickshot Joystick
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- label: PRICE
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value: $299 (USA, 1983)
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tabs:
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- photos
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- adverts
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- hardware
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- emulators
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- links
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forum_thread: 237
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photos:
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- title: FRONT VIEW
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subtitle: ''
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text: ''
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image: /media/museum/photos/spectravideo_sv318_face.jpg
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- title: SIDE VIEW
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subtitle: ''
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text: ''
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image: /media/museum/photos/spectravideo_sv318_side2.jpg
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- title: REAR VIEW
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subtitle: ''
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text: We can spot the two expansion connectors and the RGB video output (DIN) on the right.
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image: /media/museum/photos/spectravideo_sv318_rear.jpg
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- title: INSIDE SV-318
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subtitle: ''
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text: |-
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A traditional and clear design despite some cheeseparing: the keyboard cable, rigid and without connectors must be carefully handled during a disassembling, the graphic circuit cooler is coarsely glued. The left part, much more packed, is the video interface module which can differ, depending of the country where the computer was sold.
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**(1)** Integrated joystick or arrows keypad when the stick is removed.\
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**(2)** SIO 8255 circuit in charge of interfaces management (internal and external joysticks, cassette...).\
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**(3)** Sound generator AY-3-8910 chipset. (3 voices, 8 octaves and white noises for special effects), same as MSX standard.\
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**(4)** 16 memory chips holding 32 Kb. of RAM memory.\
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**(5)** Texas Instruments TMS 9929 video chipset with its glued cooler, same as MSX standard.\
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**(6)** Spectrvideo cassette recorder connector. A standard recorder can't be used.\
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**(7)** RGB video out connector.\
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**(8)** Z80 microprocessor.\
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**(9)** Expansion connector for Spectravideo expansion units.\
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**(10)** Two ROM circuits holding the Microsoft Basic interpreter.\
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**(11)** Connector and housing for ROM cartridges.
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image: /media/museum/photos/spectravideo_sv318_inside.jpg
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- title: LUXURIOUS BASIC MANUAL
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subtitle: ''
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text: ''
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image: /media/museum/photos/spectravideo_sv318_manual_1.jpg
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- title: SV-318 MKII
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subtitle: ''
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text: In 1984, Spectravideo released a revised version of the SV-318, named SV-318 MKII. The colour of area around the keyboard is different, but more importantly the motherboard has been redesigned, surely for production costs reason.
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image: /media/museum/photos/spectravideo_sv318_mk2_1.jpg
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adverts:
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- title: US AD (JULY, 1983)
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subtitle: ''
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text: Thanks to Eric Buczynski for this advert
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image: /media/museum/pubs/spectravideo_sv318_pub_us_1.jpg
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- title: FRENCH AD (DEC.1983)
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subtitle: ''
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text: Valric-Laurène was the french importer of the Spectravideo SV-318.
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image: /media/museum/pubs/spectravideo_sv-318_pub_valric-laurene_1.jpg
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- title: FRENCH AD (DEC.1983)
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subtitle: ''
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text: ''
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image: /media/museum/pubs/spectravideo_sv-318_pub_les-bornes_2.jpg
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- title: FRENCH ADVERT.
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subtitle: ''
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text: ''
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image: /media/museum/pubs/spectravideo_sv318_pub_bornes.jpg
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- title: GERMAN AD
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subtitle: ''
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text: ''
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image: /media/museum/pubs/spectravideo_sv318_german-pub_1.jpg
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- title: SV-318/328 ADVERT (FEB. 1984)
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subtitle: ''
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text: from New-Zealand Bits & Bytes magazine
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image: null
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hardware:
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- title: SVI-777
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subtitle: External disk-drive
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text: ''
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image: /media/museum/hardware/spectravideo_svi777-diskdrive_1.jpg
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- title: SVI-904
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subtitle: Tape recorder
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text: Courtesy **www.zonadepruebas.com**
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image: /media/museum/hardware/spectravideo_svi328_904taperecorder_1.jpg
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emulators:
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- title: SVI-318 / SVI-328 emulator
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url: http://www.acc.umu.se/~yarin/sviemu/
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platform: MS DOS
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text: ''
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- title: blueMSX
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url: HTTP://WWW.BLUEMSX.COM
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platform: Windows
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text: Excellent free MSX emulator that can reproduce MSX, MSX2, MSX2+, and Turbo-R. The emulator also supports the SVI318/328, and ColecoVision systems !
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links:
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- title: Roger's Spectravideo page
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url: http://www.samdal.com/spectravideo.htm
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text: The best site about Spectravideo. You want to go there !
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related:
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- /museum/spectravideo-sv-328
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oc_id: 227
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source:
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url: https://web.archive.org/web/20230604032054/http://www.old-computers.com/museum/computer.asp?c=227
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date: '2023-06-04'
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---
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The SV-318 was launched in january 1983, at the Winter CES show in Las Vegas, as the same time as the Spectravideo CompuMate, an keyboard add-on for the Atari 2600.
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The Spectravideo SV-318 is the system at the origin of the MSX standard, and such, has characteristics very close to the [MSX systems](/museum/msx-1/) (same video, sprites, sound, I/O, etc.). It was even sold as an MSX computer in some places, but it is not fully MSX compliant and can't use MSX programs.
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Notice that instead of using cursor keys, the Spectravideo uses a small joystick, which emulates cursor keys.
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An "expansion base" addon was available. This provides 64 KB RAM, a 80 column video and a floppy disk controller and its floppy drive (5.25"). With all these peripherals, the SV318 can run under CP/M.
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In 1984, Spectravideo released a revised version of the SV-318, named SV-318 MKII. The colour of area around the keyboard is different, but more importantly the motherboard has been redesigned, for production costs reason. Among the changes was a single ULA chip instead of several TTL chips, reducing the motherboard footprint and cost.
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A more professional version of the SV318 was launched a while later: the [SV-328](/museum/spectravideo-sv-328/) (which has 80 KB RAM and a numeric keyboard and the [SV-728](/museum/spectravideo-svi-728/) case).
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