PC bus standards — What does the acronym EISA stand for?
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AExtended Industry Standard Architecture
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BExpanded Industry Standard Architecture
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CEnhanced Industry Standard Architecture
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DElectronics Industry Standard Architecture
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EAll of the above
Answer
Correct Answer: Extended Industry Standard Architecture
Explanation
Introduction / Context:EISA is a legacy 32-bit expansion bus introduced to succeed ISA in servers and high-end PCs. Knowing full forms of classic acronyms aids in interpreting documentation and troubleshooting expansion compatibility.
Given Data / Assumptions:
- We are referring to the historical PC hardware standard from the late 1980s/early 1990s.
- Acronym expansion must match the official name.
Concept / Approach:
EISA literally expands to Extended Industry Standard Architecture. Alternatives like “Expanded” or “Enhanced” are common mis-remembrances but are not the formal name.
Step-by-Step Solution:
Identify the correct expansion: Extended Industry Standard Architecture.Reject near-synonyms that are historically inaccurate.Select option that matches exactly.Verification / Alternative check:
Contemporary vendor literature and standards lists confirm the wording “Extended.”
Why Other Options Are Wrong:
“Expanded” and “Enhanced” are incorrect and would refer to different concepts. “Electronics” is also incorrect. “All of the above” cannot be true if only one is correct.
Common Pitfalls:
Confusing EISA with “Enhanced ISA” marketing terms used loosely for other upgrades or with VLB/PCI evolution.
Final Answer:
Extended Industry Standard Architecture.