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DEC 54-21225-01 4 MB SIMMS
- 4MB memory capacity
- SIMM (Single In-line Memory Module) form factor
- Older RAM technology
- Designed for legacy computer systems
- Used for system memory expansion
- Requires specific installation slots
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Product Overview
The DEC 54-21225-01 is a 4MB SIMM (Single In-line Memory Module) memory module. This older type of RAM was commonly used in personal computers during the late 1980s and early 1990s.
Technical Information
| Capacity | 4MB |
| Form Factor | SIMM |
| Brand | DEC |
Additional Specifications
| Part Number | 54-21225-01 |
| Technology | Likely DRAM (specific type varies) |
Product Description
The DEC 54-21225-01 is a 4 Megabyte (MB) SIMM (Single In-line Memory Module). This type of memory module represents an older generation of computer RAM, commonly found in personal computers from the late 1980s through the mid-1990s. SIMMs were a significant advancement over earlier memory technologies, featuring a compact design where memory chips were mounted on a small printed circuit board with edge connectors for insertion into a motherboard slot. This particular module, with its 4MB capacity, would have been considered substantial for its era, enabling systems to run more complex operating systems and applications. The 'DEC' designation indicates it was manufactured by or for Digital Equipment Corporation, a prominent computer manufacturer during that period. The specific technical specifications, such as the memory type (e.g., Fast Page Mode DRAM, EDO DRAM) and speed (e.g., 70ns, 60ns), would depend on the exact revision and intended system compatibility. Due to its age, the DEC 54-21225-01 SIMM is primarily of interest for maintaining or restoring vintage computer systems. It is not compatible with modern computers, which use entirely different memory form factors like DIMMs and SO-DIMMs with DDR technologies. Finding compatible motherboards and systems that utilize these specific SIMM slots is now a niche requirement for collectors and enthusiasts of retro computing.
