SV-328
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| Developer | Spectravideo |
|---|---|
| Type | Home computer |
| Release date | 1983 (Summer CES, Chicago) |
| Media | ROM Cartridge, Cassette tape |
| Operating system | Microsoft Extended BASIC CP/M |
| CPU | Zilog Z80A @ 3.6 MHz |
| Memory | 64 KB (+16 KB VRAM) |
| Display | 256×192 resolution, 16 colours |
| Input | Keyboard |
| Predecessor | SV-318 |
| Successor | SV-728 |
The SV-328 is an 8-bit home computer introduced by Spectravideo in June 1983. It was the business-targeted model of the Spectravideo range, sporting a rather crowded full-travel keyboard with numeric keypad. It had 80 kB RAM (64 kB available for software, remaining 16 kB video memory), 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.[1] Spectravideo's MSX-compliant successor to the 328, the SV-728, looks almost identical, 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 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.
System specs
- Processor: Zilog Z80A running at 3.6 MHz[2]
- ROM: 32 KB
- RAM: 64 KB
- Video Display Processor: Texas Instruments TMS9918
- VRAM: 16 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)
- Programmable Peripheral Interface : Intel 8255
Peripherals
At back of SV-318 / SV-328, adapters permit to connect only a few peripherals, such as a tape drive (SV-903), a CVBS monitor and joysticks. However, with a Super Expander unit, more options were available:
- SV-803 Memory expansion card, 16 kB
- SV-807 Memory expansion card, 64 kB
- SV-805 RS232 card
- SV-701 Internal modem, 300 baud
- SV-802 Centronics parallel port card for 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 cps (a refurbished Seikosha SK-100)
- SV-902 External floppy drive
- SV-903 cassette drive
- SV-105 Graphics Tablet
References
External links
- SV-328 at Roger's Spectravideo page
- El Museo de los 8 Bits
- old-computers
- Spectravideo discussion board
- Cafe 8bitar, Swedish community for 8bit computers, including spectravideo.
Emulators
- SVI-318/328 Emulator by Jimmy Mårdell
- BlueMSX MSX emulator, support SVI 318/328
