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Seagate ST225 20MB 3600RPM MFM 128KB Cache 5.25-Inch Hard Drive
- Capacity: 20MB
- Form Factor: 5.25-Inch
- Interface: MFM (Modified Frequency Modulation)
- Rotational Speed: 3600 RPM
- Cache: 128KB
- Type: Hard Disk Drive
- Vintage: Designed for early PC systems
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Product Overview
The Seagate ST225 is a 5.25-inch MFM (Modified Frequency Modulation) hard disk drive with a capacity of 20MB. It features a rotational speed of 3600 RPM and a 128KB cache, designed for early personal computers.
Technical Information
| Capacity | 20MB |
| Form Factor | 5.25-Inch |
| Interface | MFM |
Additional Specifications
| Rotational Speed | 3600 RPM |
| Cache | 128KB |
| Drive Type | Hard Disk Drive |
Product Description
The Seagate ST225 is a classic example of early hard drive technology, specifically designed for the burgeoning personal computer market of the 1980s. Its 5.25-inch form factor was standard for the era, and it utilized the MFM (Modified Frequency Modulation) interface, which was common before the widespread adoption of IDE and SCSI. With a storage capacity of 20 megabytes, the ST225 offered a significant upgrade over floppy disk storage for operating systems and applications of the time. The drive spins at 3600 revolutions per minute (RPM), providing relatively quick access times for the technology. The inclusion of a 128KB cache helped to buffer data transfers, improving performance slightly. This drive is a piece of computing history, representing a crucial step in the evolution of mass storage. While its capacity and speed are minuscule by modern standards, the Seagate ST225 was instrumental in making personal computers more practical and powerful for users, enabling the storage of larger software programs and data files.
