原文
| ||||||||||||||
| ||||||||||||||
 | ||||||||||||||
（评论）
(comments)
原始链接: https://news.ycombinator.com/item?id=44050992
一篇 Hacker News 的帖子重点介绍了一篇关于 Datapoint 2200（一款早期的个人电脑）的文章。评论者 msla 对早期的计算机显示器做出了澄清。原文提到第一台电子可编程存储程序计算机——曼彻斯特“婴儿机”——使用了 CRT 显示器。msla 澄清说，“婴儿机”实际上使用了四个 CRT：三个威廉姆斯管用作内存（RAM 和寄存器），一个用作显示器。关键的区别在于内存 CRT 前面有一块金属板。“婴儿机”的设计方案是在内存和显示 CRT 上显示相同的数据，而显示 CRT 方便地安装在前面板上，供用户查看。这种区别突出了早期计算技术中巧妙地将 CRT 用于内存存储和视觉输出。
相关文章
> In 1948, Manchester Baby, the first electronic programmable stored-program computer, had a Cathode Ray Tube (CRT) display that allowed users to peer directly into its 32-bit word memory. This worked because the CRT itself - what was known as a ‘Williams Tube’ - was memory.
There were four CRTs, three of which were memory (one for RAM, two for registers) and the other was a display device. This is because to be used as memory, the CRT needed a metal plate in front of it. So the Baby put the same data on both the memory and display CRTs, one of which was mounted in its front panel.
https://en.wikipedia.org/wiki/Williams_tube
reply