View source for SV-328

{{Short description|8-bit home computer introduced by Spectravideo in 1983}}
{{Infobox computer
| Name = Spectravideo SV-328
| Logo =
| Photo = [[File:SV328.jpg|300px]]
| Caption =
| Type = [[Home computer]]
| Developer = [[Spectravideo]]
| Released = 1983 (Summer [[Consumer Electronics Show|CES]], [[Chicago]])
| Discontinued =
| Processor = [[Zilog Z80A]] @ 3.6&nbsp;MHz
| Memory = 64&nbsp;[[kilobyte|KB]]
| Media =
| Graphics = [[TMS9918]] (16&nbsp;KB [[VRAM]])
| Display = {{resx|256×192}}, 16 colours; TV or [[composite monitor]]
| Power =
| Input = [[Keyboard (computing)|Keyboard]]
| Connectivity =
| OS = [[Microsoft BASIC|Microsoft Extended BASIC]]<br/>[[CP/M]]
| Baseprice =
| Website =
| predecessor =
| successor = [[SV-728]]
| sound = [[AY-3-8910]]
| related = [[SV-318]]
| family = Spectravideo
| memory card = [[ROM Cartridge]], [[Cassette tape]], [[floppy disc]]
}}
The '''SV-328''' is an [[8-bit]] [[home computer]] introduced by [[Spectravideo]] in June 1983.<ref>{{Cite web |date=2023-06-05 |title=O microcomputador Spectravideo SV-328 de 1983 |url=https://museucapixaba.com.br/hoje/microcomputador-spectravideo-sv-328-de-1983/ |access-date=2024-11-03 |website=MCC - Museu Capixaba do Computador |language=pt-BR}}</ref> It was the business-targeted model of the Spectravideo range, sporting a compact full-travel keyboard with [[numeric keypad]].<ref name=":0" /> It had 80&nbsp;KB [[Random-access memory|RAM]] (64&nbsp;KB available for [[software]], remaining 16&nbsp;KB [[video memory]]),<ref>{{Cite book |last=Spectravideo |url=https://archive.org/details/svi328usermanual/page/n1/mode/2up |title=SVI-328 Personal Computer User's Manual (GB) |date=1983 |pages=9, 10}}</ref> a respectable amount for its time. Other than the keyboard and RAM, this machine was identical to its little brother, the [[SV-318]].
The SV-328 is the design on which the [[MSX]] standard was based.<ref>{{cite web |last=Samdal |first=Roger |year=2008 |title=The history of Spectravideo |url=http://www.samdal.com/svhistory.htm |accessdate=2009-07-17 |website=Roger's Spectravideo Page}}</ref> [[Spectravideo]]'s MSX-compliant successor to the 328, the [[SV-728]], looks almost identical,<ref name=":1">{{Cite web |title=Spectravideo SV-328 |url=https://www.oldcomputermuseum.com/spectravideo_328.html |access-date=2024-11-03 |website=www.oldcomputermuseum.com}}</ref> the only immediately noticeable differences being a larger cartridge slot in the central position (to fit MSX standard cartridges), lighter shaded keyboard and the MSX badging.
Reference to the operating system [[Microsoft BASIC|Microsoft Extended BASIC]] is not to be confused with [[MSX BASIC]], although some marketing at the time claimed that '''Microsoft Extended''' is what [[MSX]] stood for. More than 130 games were released for the system.<ref>{{Cite web |title=Listing of all Spectravideo SVI 318 / 328 games - Page 1 |url=https://www.video-games-museum.com/en/sys/138-svi-318-328/3/all?systeme_affichage=screenshots |access-date=2023-01-01 |website=The Video Games Museum |language=en}}</ref>
==System specs==
*Processor: [[Zilog Z80A]] running at 3.6&nbsp;MHz<ref name=":0">{{cite web |last=Samdal |first=Roger |title=Spectravideo SV-328 |url=https://www.samdal.com/sv328.htm |website=Roger's Spectravideo Page}}</ref>
*[[Read-only memory|ROM]]: 32&nbsp;KB
**[[BIOS]] (16&nbsp;KB)
**[[BASIC]] (16&nbsp;KB)
*[[Random access memory|RAM]]: 64&nbsp;KB
*[[Video Display Controller|Video Display Processor]]: [[TMS9918]]
**[[VRAM]]: 16&nbsp;KB
**Text modes: 40×24 and 32×24
**Resolution: 256×192 (16 colours)
**Sprites: 32, 1 colour, max 4 per horizontal line
*[[Sound chip]]: [[General Instrument AY-3-8910]] (PSG)
*[[I/O]] chip: [[Intel 8255]]
==Peripherals==
[[Image:Spectravideo SVI 328 SuperExpander DSC00035.JPG|thumb|right|SV-328 connected to a tape drive (left) and a SV-601B Super Expander.]]
[[File:SV328boot.jpg|thumb|right|SV-328 screen immediately after [[booting]].]]
The standard ports of a [[SV-318]] / SV-328 support only a few [[peripherals]] such as the SV-903 tape drive, a [[CVBS]] monitor (or external RF modulator for TV), and two [[joystick]]s. However the Super Expander edge connector offered more options:<ref name=":1" />
*SV-803 Memory expansion card, 16&nbsp;KB
*SV-807 Memory expansion card, 64&nbsp;KB
*SV-805 [[RS-232]] card
*SV-701 Internal [[modem]], 300 [[baud]]
*SV-802 [[Centronics]] [[parallel port]] card for [[printer (computing)|printer]]
*SV-806 80-column video card
*SV-801 Floppy controller card, needed for [[disk drive]] usage
*[[Hard disk]] controller card
*SV-809 [[Network card]]
*SV-602 Mini Expander (for one card)
*SV-601A Expander case with power supply and many slots. External disk drives
*SV-601B Super Expander, similar but with built-in floppy drive and an optional second drive
*SV-603 [[ColecoVision]] adapter, enabling ColecoVision games to be played on the SV-328
*SV-901C 80-columns printer at 50&nbsp;cps (a refurbished [[Seikosha]] SK-100)
*SV-902 External floppy drive
*SV-903 [[Magnetic tape data storage|cassette drive]]
*SV-105 [[Graphics Tablet]]
==References==
{{Reflist}}
==External links==
*[http://www.samdal.com/sv328.htm SV-328 at Roger's Spectravideo page]
*[http://www.museo8bits.com/svi328.htm El Museo de los 8 Bits]
*[http://www.old-computers.com/museum/computer.asp?c=228 old-computers] {{Webarchive|url=https://web.archive.org/web/20081216105121/http://www.old-computers.com/museum/computer.asp?c=228 |date=2008-12-16 }}
===Emulators===
*[https://web.archive.org/web/20080207063433/http://www.acc.umu.se/~yarin/sviemu/ SVI-318/328 Emulator] by Jimmy Mårdell
*[http://www.bluemsx.com BlueMSX] MSX emulator, support SVI 318/328
{{Authority control}}
{{Spectravideo computers}}
{{DEFAULTSORT:Sv-328}}
[[Category:Home computers]]
[[Category:MSX microcomputer]]
[[Category:Computer-related introductions in 1983]]
[[Category:Spectravideo]]