SVI-728 explained

Type:	Home computer
Released:	1984
Processor:	Zilog Z80A @ 3.6 MHz
Memory:	64 KB (+16 KB video memory)
Os:	MSX
Predecessor:	SV-328
Display:	256 x 192 pixel resolution
Related:	SVI-738, MSX
Sound:	AY-3-8910
Graphics:	TMS9918A/TMS9929 (NTSC/PAL)

The SVI-728 is the first home computer from Spectravideo that complied fully with the MSX home computer specification.^{[1] [2]} It was introduced in 1984.^[3] The design is virtually identical to that of the earlier SV-328, which did not comply fully with the MSX standard.

The SVI-738 is a portable version of this computer.

Technical specifications

Microprocessor

• Zilog Z80A with a clockspeed of 3.56 MHz.

Memory

• ROM

32 KB

• RAM

64 KB (expandable to 256 KB)

• VRAM

16 KB

Video

• Graphical processor

Texas Instruments TMS9918A/TMS9929 (NTSC/PAL)

• Graphical resolution

256 x 192 pixels

• text modes: 40 characters x 24 lines and 32 characters x 24 lines

• colors: 16

• sprites: 32

Sound

• General Instrument AY-3-8910-soundchip

• 3 sound channels

• 1 noise channels

• 1 envelope controller

Connectors

• 1 data recorder/Cassette deck
• 2 joysticks
• 1 cartridge
• 1 Super Expander
• 1 disk station

Notes and References

1. Web site: OLD-COMPUTERS.COM : The Museum . 2022-03-18 . www.old-computers.com.
2. Web site: Spectravideo 728 . 2022-03-18 . www.classic-computers.org.nz.
3. Web site: SVI-728 - HwB . 2022-03-18 . www.hardwarebook.info.