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seagate 21364-020 20MB MFM 5.25-Inch Hard Drive
- Capacity: 20 MB
- Interface: MFM
- Rotational Speed: 3600 RPM
- Form Factor: 5.25-Inch
- Manufacturer: Seagate
- Model: 21364-020
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Product Overview
The Seagate 21364-020 is a 5.25-inch MFM hard drive with a capacity of 20MB. It operates at a rotational speed of 3600RPM and uses the MFM interface, typical for early personal computer systems.
Technical Information
| Capacity | 20 MB |
| Interface | MFM |
Additional Specifications
| Rotational Speed | 3600 RPM |
| Form Factor | 5.25-Inch |
Product Description
The Seagate 21364-020 is a vintage hard disk drive from the era when MFM (Modified Frequency Modulation) was the standard interface for storage. With a capacity of 20MB, it was a significant upgrade over floppy disks for personal computer users in the early to mid-1980s, allowing for the storage of operating systems and a modest collection of software and data. This drive operates at a spindle speed of 3600 RPM, which was common for drives of its time, providing a reasonable balance between performance and the mechanical limitations of the era. The MFM interface required a dedicated controller card and specific cabling, making installation and configuration more complex than modern interfaces. The 5.25-inch form factor meant it physically fit into the same drive bays used by floppy disk drives, a common sight in computers like the IBM PC XT and early Compaq models. Drives like the Seagate 21364-020 were instrumental in the adoption of personal computers for more practical business and productivity tasks by offering persistent and relatively fast storage.
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