【talk】为什么bus翻译为总线？

2018.07.17

https://en.wikipedia.org/wiki/Bus_(computing) 提到

Early computer buses were bundles of wire that attached computer memory and peripherals. Anecdotally termed the "digit trunk",^[4] they were named after electrical power buses, or busbars.

busbar，翻译为汇流排、母排、母线等，如下图所示。参见 https://zhuanlan.zhihu.com/p/29237853

 

（图片来源：https://zhidao.baidu.com/question/548857718.html）

 

为什么busbar被称为busbar呢？wiki上有一个讨论：https://en.wikipedia.org/wiki/Talk:Busbar#Why_is_it_called_a_%22busbar%22?

The word “bus” comes from a shortened version of “omnibus”, the Latin word that roughly means “all in one”, thus in books, a lot of books in one, or in the electrical application, a lot of electrical “pathways” of currents in one. The word bus is, therefore, a description of the bar, and just like COPPER BAR, ROUND BAR, SQUARE BAR, etc., should be spelt apart.

Bus bar. — Preceding unsigned comment added by 196.214.184.246 (talk) 06:03, 11 October 2011 (UTC)

bus 的词源是 omnibus：https://en.wiktionary.org/wiki/bus

Shortening of omnibus, from Latin omnibus (“for all, for everybody”); dative plural of omnis (“all”). The electrical sense is derived from figurative application of the automotive sense.

busbar 应该理解为 omnibus bar，中文翻译为 “汇流排” 是很贴切的。

 计算机领域中的 bus 来自电力领域的 bus/busbar，中文翻译为 “总线” 也是准确的。和汇流排不一样的地方是，总线并不是将挂载的不同设备的信号同时汇集在一起，不同设备不能同时占有总线。