计算机中的文本字符究竟是什么？ [英] What exactly is a text character in the computer?
问题描述
好的，我知道二进制数字如何转化为文本字符。
我的问题是究竟是一个文本字符是什么？它是位图吗？
th ********* @ comcast.net 写道：我的问题是究竟是一个文本字符是什么？这是一个
位图吗？
这是偏离主题的，你不会相信它。虽然我不应该这样做
（因为它可能会鼓励其他人在这里发布OT）：
< OT>
在过去（现在如果你切换到CLI / DOS模式或运行没有像X这样的GUI的类似UNIX的操作系统），字符存储在内存中
特殊位置（在BIOS内存中设置一些指针，你可以将
覆盖这些指针）作为位图。 GUI中使用的字符（或字形）就像
Windows和X更经常使用曲线的组合（有时是
提示）来描述它们的含义应该是这样的。
< / OT>
-
Martijn
http://www.sereneconcepts.nl
Martijn写道：
th*********@comcast.net 写道：
我的问题是究竟是一个文本字符是什么？它是一个
位图吗？
这是偏离主题的，你不会相信它。虽然我不应该这样做
（因为它可能会鼓励其他人在这里发布OT）：
< OT>
在过去（至今仍然如此）如果你切换到CLI / DOS模式或运行没有像X这样的GUI的类UNIX操作系统，那么这些字符存储在一个特殊位置的内存中（在BIOS内存中设置一些指针，你可以
覆盖这些）作为位图。 GUI中使用的字符（或字形）就像Windows和X一样，经常使用曲线组合（有时是
提示）来描述它们应该是什么样子。
< / OT>
废话。在过去，人物是小金属
死了，用墨水丝带压着纸（各种
机械安排被使用）。使用正确的
字符序列，您可以让一些打印机发出声音，这些声音具有
音调并且可以产生可识别的音乐，但这往往是
在功能区上吃洞，让你从
电脑操作员那里得到严厉的谈话。
-
Eric索斯曼
es*****@acm-dot-org.inva lid
在文章< -O ******************** @ comcast.com>，
Eric Sosman< es ***** @ acm-dot-org.invalid>写道：Martijn写道：
th * ********@comcast.net 写道：
我的问题是究竟是一个文本字符是什么？它是一个
位图吗？
这是偏离主题的，你不会相信它。虽然我不应该这样做
（因为它可能会鼓励其他人在这里发布OT）：
< OT>
在过去（至今仍然如此）如果你切换到CLI / DOS模式或运行没有像X这样的GUI的类UNIX操作系统，那么这些字符存储在一个特殊位置的内存中（在BIOS内存中设置一些指针，你可以
覆盖这些）作为位图。 GUI中使用的字符（或字形）就像Windows和X一样，经常使用曲线组合（有时是
提示）来描述它们应该是什么样子。
< / OT>
废话。在过去，人物是小金属模具，用墨水将色带压在纸上（使用了各种机械布置）。使用正确的
字符序列，您可以让一些打印机发出具有音高并且可以产生可识别音乐的声音，但这往往会在功能区中吃洞并让您获得严厉的谈话 - 来自
计算机操作员。
废话。每个人都知道，在过去，人物
是凿成石头的形状。
-
rr
Ok, I know all about how binary numbers translate into text characters.
My question is what exactly IS a text character? Is it a bitmap?
th*********@comcast.net wrote:My question is what exactly IS a text character? Is it a
bitmap?
This is so off-topic, you wouldn''t believe it. Although I shouldn''t do this
(because it may encourage others to post OT here as well):
<OT>
In the old days (and still today if you switch to CLI/DOS mode or run a
UNIX-like OS without a GUI like X) the characters were stored in memory in a
special location (setting some pointers in the BIOS memory, you could
override these) as bitmaps. The characters (or glyphs) used in GUI''s like
Windows and X use more often than not a combination of curves (and sometimes
hints) to describe what they should look like.
</OT>
--
Martijn
http://www.sereneconcepts.nl
Martijn wrote:
th*********@comcast.net wrote:My question is what exactly IS a text character? Is it a
bitmap?
This is so off-topic, you wouldn''t believe it. Although I shouldn''t do this
(because it may encourage others to post OT here as well):
<OT>
In the old days (and still today if you switch to CLI/DOS mode or run a
UNIX-like OS without a GUI like X) the characters were stored in memory in a
special location (setting some pointers in the BIOS memory, you could
override these) as bitmaps. The characters (or glyphs) used in GUI''s like
Windows and X use more often than not a combination of curves (and sometimes
hints) to describe what they should look like.
</OT>
Nonsense. In the old days, characters were little metal
dies that pressed an inked ribbon against paper (various
mechanical arrangements were used). With the right sequences of
characters you could get some printers to emit sounds that had
pitch and could produce recognizable tunes, but that tended to
eat holes in the ribbon and earn you a stern talking-to from the
computer operators.
--
Eric Sosman
es*****@acm-dot-org.invalid
In article <-O********************@comcast.com>,
Eric Sosman <es*****@acm-dot-org.invalid> wrote:Martijn wrote:th*********@comcast.net wrote:My question is what exactly IS a text character? Is it a
bitmap?
This is so off-topic, you wouldn''t believe it. Although I shouldn''t do this
(because it may encourage others to post OT here as well):
<OT>
In the old days (and still today if you switch to CLI/DOS mode or run a
UNIX-like OS without a GUI like X) the characters were stored in memory in a
special location (setting some pointers in the BIOS memory, you could
override these) as bitmaps. The characters (or glyphs) used in GUI''s like
Windows and X use more often than not a combination of curves (and sometimes
hints) to describe what they should look like.
</OT>
Nonsense. In the old days, characters were little metal
dies that pressed an inked ribbon against paper (various
mechanical arrangements were used). With the right sequences of
characters you could get some printers to emit sounds that had
pitch and could produce recognizable tunes, but that tended to
eat holes in the ribbon and earn you a stern talking-to from the
computer operators.
Nonsense. Everyone knows that in the old days, characters
were shapes chiseled in stone.
--
rr
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