Cromenco Z-2D
The Cromemco Z-2D is a notable vintage computer from the late 1970s, known for its robust design and modular capabilities. Here are some key facts about this classic machine:
- Released by Cromemco in 1977: The Z-2D was introduced by Cromemco, a pioneering microcomputer company founded by Harry Garland and Roger Melen. It followed the Z-1 and Z-2 models, providing enhanced storage and features.
- Based on the S-100 Bus: The Z-2D was built around the S-100 bus architecture, a popular standard in early microcomputers. This setup allowed for a high level of modularity, letting users easily expand or customize the system with additional cards.
- Powered by the Zilog Z80 Processor: It used the Zilog Z80 CPU, which was a popular choice in microcomputers due to its performance and compatibility with CP/M, the leading operating system for early personal computers.
- Built-in Dual Floppy Drives: The “D” in Z-2D stands for Dual Floppy Disk Drives—a significant feature at the time. These drives provided a total storage capacity of approximately 500 KB and allowed the Z-2D to run larger software applications and perform data storage without relying on cassette tapes.
- CP/M Operating System Compatibility: The Z-2D ran the CP/M (Control Program for Microcomputers) operating system, widely used in early personal computers and known for supporting various software applications for business, programming, and development.
- Heavy-Duty, Durable Case: The Z-2D was housed in a sturdy, industrial-style metal case, designed to withstand intensive use, making it popular for professional environments, including businesses and laboratories.
- Expandability and Customization: The Z-2D could be expanded with up to 21 S-100 cards, allowing users to add memory, storage, or peripheral interfaces. This flexibility made it a versatile choice for users with evolving computing needs.
- Popular with Early Computer Enthusiasts: The Z-2D was well-regarded among hobbyists and professionals alike, appealing to users who wanted a powerful, configurable computer that could handle more complex tasks than typical hobbyist systems of the time.
- Used in Scientific and Military Applications: Thanks to its reliability and expandability, the Cromemco Z-2D found its way into various scientific, engineering, and military applications, including controlling instruments and data processing.
- Paving the Way for Cromemco’s Later Success: The Z-2D was part of a lineup that established Cromemco as a leader in microcomputing, and it paved the way for more advanced Cromemco systems like the System Three, which would further expand the company’s influence in business and government sectors.
The Cromemco Z-2D is remembered for its solid design and capability, marking it as a versatile and powerful option in the early days of personal computing.