Electrical Engineering › Section V · Programmable logic and data storage › Topic V.4
Memory expansion, special memories, and the memory hierarchy
Real systems need memories wider and larger than any single chip, organised so that the fastest storage is always close at hand. This topic shows how chips are combined, how FIFOs and stacks order their data, and why computers use a whole hierarchy of memories.
In this topic
- Wider words: word-length expansion
- More words: capacity expansion
- Worked example: 1M × 16 from 256k × 8 chips
- Memory modules
- FIFO and LIFO memories
- Magnetic and optical storage
- The memory hierarchy
- Worked example: average access time
- Cloud storage
- Testing memories
- Common mistakes to avoid
- Key takeaways
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