……其中的原因依然非常有说服力。事实上，其中有相当大一部分令人头疼的原因，都跟在打孔卡上对 byte 进行编码的各种技术有关。如果感兴趣，我推荐 Charles E. Mackenzie 写的《编码字符集：历史与发展》（Coded Character Sets: History and Development）。这是一本老书了，所以讲的都是 Unicode 出现之前的、以美国为中心的字符编码。而且，书中的大部分篇幅都集中在 EBCDIC 的各种变体上，而不是……
…of the reasons are still very compelling. In fact, a distressingly large number of them have to do with the various techniques for encoding bytes on punch cards. For the curious, I recommend the book "Coded Character Sets: History and Development" by Charles E. Mackenzie. It's an older book, and so it's about the pre-Unicode, US-centric codes. Also, most of the pages focus on the many variants of EBCDIC rather than the…
IBM 其实深度参与了 ASCII 的制定。可以参考 Charles E. MacKenzie 的《编码字符集：历史与发展》[1] 以及 Bob Bemer 的文章 [2]。[1] http://openlibrary.org/works/OL8019369W/Coded_Character_Sets [2] http://www.bobbemer.com/
IBM was actually quite involved in the development of ASCII. See Charles E. MacKenzie, Coded Character Sets: History and Development [1] and Bob Bemer's stuff [2]. [1] http://openlibrary.org/works/OL8019369W/Coded_Character_Sets [2] http://www.bobbemer.com/
……改用 ^（因为外国佬想要重音符号），左箭头“←”被舍弃改用“_”。⁵⁶ ¹Jean Sammet，《程序设计语言：历史与基础》978-0137299881 ²Charles E. MacKenzie，《编码字符集：历史与发展》978-0201144604 ³http://www.trailing-edge.com/~bobbemer/SURVEY.HTM ⁴R W Bemer，《改进传输/数据处理代码的设计》http://dx.doi.org/10.1145/366532.366538 ⁵American…
…in favour of ^ (because furriners wanted accents), and a left arrow ‘←’ dropped in favour of ‘_’.⁵⁶ ¹Jean Sammet, Programming Languages: History and Fundamentals 978-0137299881 ²Charles E. MacKenzie, Coded Character Sets: History and Development 978-0201144604 ³http://www.trailing-edge.com/~bobbemer/SURVEY.HTM ⁴R W Bemer, Design of an improved transmission/data processing code http://dx.doi.org/10.1145/366532.366538 ⁵American…
……在 DEC 负责通信，而且刚在 MIT 做完研究，所以如果他或者他在 MIT 或 DEC 的朋友进入了 ANSI（当时叫 ASA）委员会，一点也不奇怪。Mackenzie 1980 年写的《编码字符集》里第 13 章就是关于 ASCII 的 https://textfiles.meulie.net/bitsaved/Books/Mackenzie_CodedC... 但可惜的是并没有详细介绍 ASA 委员会的人员构成。注意……
…communications at dec, and had just been doing research at mit, so it wouldn't be terribly surprising if he, or friends of his from mit or dec, were to sit on the ansi (then asa) committee mackenzie's 'coded character sets' from 01980 has a chapter 13 about ascii https://textfiles.meulie.net/bitsaved/Books/Mackenzie_CodedC... but unfortunately it doesn't go into any detail on the composition of the asa committee. note…
不是的。5 bit 和 6 bit 的编码确实存在过。而且根据维基百科（引用了《编码字符集：历史与发展》一书），当时确实考虑过把 ASCII 做成 8 bit 编码（倒不是为了能容纳更多字符，而是为了高效嵌入 BCD 数据），但最终没有这么做，因为要为所有的……降低带宽需求
No. 5 and 6 bit codes existed. And according to Wikipedia (which cites a book "Coded Character Sets, History and Development") making ASCII an 8 bit encoding was considered (not to encode more characters, but to embed BCD data efficiently) but not done because reducing the required bandwith for all…
……其中的原因依然非常有说服力。事实上，其中有相当大一部分令人头疼的原因，都跟在打孔卡上对 byte 进行编码的各种技术有关。如果感兴趣，我推荐 Charles E. Mackenzie 写的《编码字符集：历史与发展》（Coded Character Sets: History and Development）。这是一本老书了，所以讲的都是 Unicode 出现之前的、以美国为中心的字符编码。而且，书中的大部分篇幅都集中在 EBCDIC 的各种变体上，而不是……
…of the reasons are still very compelling. In fact, a distressingly large number of them have to do with the various techniques for encoding bytes on punch cards. For the curious, I recommend the book "Coded Character Sets: History and Development" by Charles E. Mackenzie. It's an older book, and so it's about the pre-Unicode, US-centric codes. Also, most of the pages focus on the many variants of EBCDIC rather than the…
IBM 其实深度参与了 ASCII 的制定。可以参考 Charles E. MacKenzie 的《编码字符集：历史与发展》[1] 以及 Bob Bemer 的文章 [2]。[1] http://openlibrary.org/works/OL8019369W/Coded_Character_Sets [2] http://www.bobbemer.com/
IBM was actually quite involved in the development of ASCII. See Charles E. MacKenzie, Coded Character Sets: History and Development [1] and Bob Bemer's stuff [2]. [1] http://openlibrary.org/works/OL8019369W/Coded_Character_Sets [2] http://www.bobbemer.com/
……改用 ^（因为外国佬想要重音符号），左箭头“←”被舍弃改用“_”。⁵⁶ ¹Jean Sammet，《程序设计语言：历史与基础》978-0137299881 ²Charles E. MacKenzie，《编码字符集：历史与发展》978-0201144604 ³http://www.trailing-edge.com/~bobbemer/SURVEY.HTM ⁴R W Bemer，《改进传输/数据处理代码的设计》http://dx.doi.org/10.1145/366532.366538 ⁵American…
…in favour of ^ (because furriners wanted accents), and a left arrow ‘←’ dropped in favour of ‘_’.⁵⁶ ¹Jean Sammet, Programming Languages: History and Fundamentals 978-0137299881 ²Charles E. MacKenzie, Coded Character Sets: History and Development 978-0201144604 ³http://www.trailing-edge.com/~bobbemer/SURVEY.HTM ⁴R W Bemer, Design of an improved transmission/data processing code http://dx.doi.org/10.1145/366532.366538 ⁵American…
……在 DEC 负责通信，而且刚在 MIT 做完研究，所以如果他或者他在 MIT 或 DEC 的朋友进入了 ANSI（当时叫 ASA）委员会，一点也不奇怪。Mackenzie 1980 年写的《编码字符集》里第 13 章就是关于 ASCII 的 https://textfiles.meulie.net/bitsaved/Books/Mackenzie_CodedC... 但可惜的是并没有详细介绍 ASA 委员会的人员构成。注意……
…communications at dec, and had just been doing research at mit, so it wouldn't be terribly surprising if he, or friends of his from mit or dec, were to sit on the ansi (then asa) committee mackenzie's 'coded character sets' from 01980 has a chapter 13 about ascii https://textfiles.meulie.net/bitsaved/Books/Mackenzie_CodedC... but unfortunately it doesn't go into any detail on the composition of the asa committee. note…
不是的。5 bit 和 6 bit 的编码确实存在过。而且根据维基百科（引用了《编码字符集：历史与发展》一书），当时确实考虑过把 ASCII 做成 8 bit 编码（倒不是为了能容纳更多字符，而是为了高效嵌入 BCD 数据），但最终没有这么做，因为要为所有的……降低带宽需求
No. 5 and 6 bit codes existed. And according to Wikipedia (which cites a book "Coded Character Sets, History and Development") making ASCII an 8 bit encoding was considered (not to encode more characters, but to embed BCD data efficiently) but not done because reducing the required bandwith for all…