Sirius Systems Technology
| File:Sirius logo.svg | |
| Company type | Private |
|---|---|
| Industry | Computers |
| Founded | 1980 |
| Founder |
|
| Defunct | 1984 |
Sirius Systems Technology was a personal computer manufacturer located in Scotts Valley, California, established in 1980 by Chuck Peddle and Chris Fish, both previously associated with MOS Technology. Funded by Walter Kidde Inc., the firm purchased Victor Business Systems in late 1982 and subsequently rebranded itself as Victor Technologies. The company developed the Victor/Sirius line of personal computers. Following an initial public offering in early 1983, financial challenges led to the company filing for Chapter 11 bankruptcy protection by 1984. Its assets were then acquired by Swedish distributor Datatronic AB, led by Mats Gabrielsson, who secured a distribution agreement with Kyocera for PC clone products.
Victor 9000 / Sirius 1
The Victor 9000, known as the ACT Sirius 1 in the United Kingdom through Applied Computer Techniques and as the Sirius 1 in Australia, was designed by Chuck Peddle, a prominent entrepreneur and co-founder who also created the Commodore PET. Launched at the 1981 Systems show in Munich, this machine was aimed at business professionals and featured advanced specifications for its era.
Supporting both CP/M-86 and MS-DOS operating systems, the Victor 9000 delivered superior display resolution (800×400 pixels) and larger floppy disk storage capacity (600 KB single-sided, 1.2 MB double-sided) compared to rivals such as the Apple II and early IBM PC models. Its proprietary zoned constant linear velocity (ZCLV) drive technology maximized data density on disks, improving storage efficiency without sacrificing transfer speed—providing a notable market edge.
Audio functionality included voice encoding through CVSD modulation at roughly 16 KHz, facilitated by an MC6852-SSDA chip paired with a CODEC. The visual output was managed by a Hitachi 46505 CRT controller (equivalent to Motorola 6845), enabling high-resolution monochrome graphics with a 76 Hz interlaced refresh rate.
While it faced difficulties gaining traction in North America, the Victor 9000 achieved substantial market penetration across Europe—especially in the UK and Germany—benefiting from IBM’s slower PC introduction there. This success influenced the creation of the ACT Apricot, which eventually outsold Sirius/Victor subsidiaries throughout Europe. Distribution predominantly occurred via small systems integrators rather than traditional retail outlets.
In the UK market, DRG Business Machines also handled Victor 9000 distribution but encountered limited success due to ACT’s stronger brand recognition and established dealer network.
Reception
The magazine BYTE commended the Victor 9000 as "an excellent microcomputer with an outstanding array of standard features," emphasizing its superior video quality and extensive software availability. Nonetheless, it pointed out that Victor’s peripherals were priced higher than more economical third-party alternatives for the IBM PC.
Additional resources
- (US Patent 06/434075)
- Old-Computers.com – Victor 9000 / Sirius 1
- Pages with broken file links
- American firms founded in 1980
- American firms closed in 1983
- Computer firms founded in 1980
- Computer firms closed in 1983
- Obsolete computer companies in the United States
- Obsolete computer hardware manufacturers
- Obsolete computer system providers
- American companies established in 1980
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- Companies of the United States by year of establishment