IBM PC BSC Adapter Half Duplex Lines | Generated by AI
Question: What type of transmission line is the IBM PC BSC communication adapter primarily designed for?
Answer:
The IBM PC BSC (Binary Synchronous Communication) communication adapter is primarily designed for half-duplex transmission lines.
Explanation:
- BSC (Binary Synchronous Communication) is a character-oriented, synchronous data link layer protocol developed by IBM.
- It was commonly used in early mainframe and PC communications.
- In half-duplex communication, data can be transmitted in both directions, but not simultaneously. This fits the operational model of BSC, where the sender and receiver take turns transmitting.
- Full-duplex allows simultaneous two-way communication, which is not typically supported by basic BSC implementations without additional hardware or protocol enhancements.
- Therefore, the IBM PC BSC adapter is optimized for half-duplex environments.
Correct Answer:
A. 半双工传输线路设计的 (Designed for half-duplex transmission lines)
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