150年前的“电脑”展示
发信人: Podoid (戒急用忍), 信区: Science标题: 150年前的电脑展示
发信站: 水木社区 (Fri Apr 25 02:07:51 2008), 站内
Designed nearly 150 years ago but never actually built until recently, the
Difference Engine No. 2 designed by Charles Babbage (1791 to 1871) is a piece
of Victorian technology meant to tussle with logarithms and trigonometry long
before the first modern computer. Technophiles have a rare opportunity
beginning May 10 to see one of these devices (only two exist) on display at the
Computer History Museum in Mountain View, Calif.
Babbage's automatic computing engine consists of 8,000 bronze, cast iron and
steel parts, weighs five tons, and measures eleven feet (3.4 meters) long and
seven feet (2.1 meters) high. Museum guest curator Doron Swade used Babbage's
own plans to bring the engine to life.
Babbage is also credited with inventing the cowcatcher, dynamometer, standard
railroad gauge and heliograph ophthalmoscope as well as uniform postal rates,
occulting lights for lighthouses and Greenwich time signals.
http://www.sciam.com/article.cfm?id=150-year-old-computer-babbage 精致漂亮！::42:: 哦！好呀！好机器！::070821_13.jpg::
这是机械的
不用电。无法叫电脑。可叫铁脑::42::，也可称之铁疙瘩。
相应的，算盘可叫木脑，榆木做的就是榆木脑了。
不过有个疑问
听说巴贝奇只是设计了，没有制造出来。难道这个是按过去的原理做的？类似于今天复现指南车和木牛流马？
还有一问，听说巴贝奇夫人是程序员，铁疙瘩怎么编程？难道说不停的换一些齿轮实现不同的功能？::42:: ::42:: 想来当时编程是个体力活？ 同意楼上，我也认为是现代复原的，如果机器150年还这么闪闪发光，除非用氮气保护…… 哇噻！棒！！！::070821_19.jpg::
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