SVI-728 Knowpia

SVI-728
Type	Home computer
Release date	1984
Operating system	MSX
CPU	Zilog Z80A @ 3.6 MHz
Memory	64 KB (+16 KB video memory)
Display	256 x 192 pixel resolution
Graphics	TMS9918A/TMS9929 (NTSC/PAL)
Sound	AY-3-8910
Predecessor	SV-328
Related	SVI-738, MSX

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 edit


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

References edit

^ "OLD-COMPUTERS.COM : The Museum". www.old-computers.com. Retrieved 2022-03-18.
^ "Spectravideo 728". www.classic-computers.org.nz. Retrieved 2022-03-18.
^ "SVI-728 - HwB". www.hardwarebook.info. Retrieved 2022-03-18.

[1] "OLD-COMPUTERS.COM : The Museum". www.old-computers.com. Retrieved 2022-03-18.

[2] "Spectravideo 728". www.classic-computers.org.nz. Retrieved 2022-03-18.

[3] "SVI-728 - HwB". www.hardwarebook.info. Retrieved 2022-03-18.

[1]

[2]

[3]

Summary

Technical specifications edit

References edit