发信人: monopoly (MN国庆回来还要带鱼片么？), 信区: BBS_Help
标 题: 终端体验之旅（序）
发信站: 日月光华 (2005年09月18日13:28:31 星期天), 站内信件
很久很久以前，还不存在PC机，
当时的电脑网络是由一台主机(host)和若干台终端(terminal)组成。
主机有硬盘，有操作系统；而古老的终端甚至没有硬盘，用软盘上的DOS启动。
BBS也是如此，主机就是现在的BBS服务器，终端则演变成我们PC机上的一个小软件，
也就是我们现在常说的Win Telnet、Fterm、Cterm、Sterm、Qterm等等。
也是在很久很久以前，键盘只有59个键（而不是我们现在标准键盘的101键）。
这是从打字机键盘演变过来的，也就是现在标准键盘中的主键盘区，分别为
10个数字键：1-9 0 及其上档符号 ! @ # $ % ^ & * ( )
26个字母键：A-Z 及其小写字母 a-z
11个符号键：~ ` _ - + = { [ } ] | \ : ; " ' < , > . ? /
6个功能键：<Esc> <Tab> <CapsLock> <BackSpace> <Space> <Enter>
3对组合键：左右Shift、左右Alt、左右Ctrl
后来随着计算机的发展，键盘上的按键也逐渐增多
出现了方向键↑ ↓ ← →、F1-F12 功能键、辅助键盘区和小键盘区，
甚至于后来出现的左右Win键和快捷菜单右键，
更不用说那小巧玲珑的鼠标，和GUI（图形用户界面，而不是命令行）的程序。
这些都极大地方便了人们操作电脑，但是我们不禁发出疑问：
在没有后来这些按键的古代，人们是怎么样通过仅仅59个键来操作终端的？
作为远古时代留下来的遗迹，BBS给了我们一次机会。
现在，让我们抛弃辅助键盘区和小键盘区，只用主键盘区来操作终端，
进入我们的终端体验之旅！
旅行（一）：Ctrl控制键，0-127 ASCII码表；
旅行（二）：Esc组合键简介；
旅行（三）：Esc组合键为特殊按键；
旅行（四）：Esc组合键为可见字符；
旅行（五）：Esc组合键为不可见字符。
(to be continued)
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※ 转载:·日月光华 bbs.fudan.edu.cn·[FROM: 10.100.111.111]
※ 修改:·monopoly 於 09月18日13:36:37 修改本文·[FROM: 10.100.111.111]
Sender: monopoly MN Do you still need to bring fish fillets when you come back during the National Day? Message area: BBS Help
Title: Terminal Experience Journey Preface
Sending site: Sun and Moon Guanghua September 18, 2005 13:28:31 Sunday, site mail
A long, long time ago, PCs didn't exist
The computer network at that time consisted of a host and several terminals.
The host has a hard disk and an operating system, but the ancient terminal does not even have a hard disk and uses DOS on a floppy disk to boot.
The same is true for BBS. The host is the current BBS server, and the terminal has evolved into a small software on our PC.
That is what we often call Win Telnet Fterm Cterm Sterm Qterm and so on.
It was also a long, long time ago that the keyboard only had 59 keys instead of the 101 keys we have today on the standard keyboard.
This evolved from the typewriter keyboard, which is now the main keyboard area of the standard keyboard. They are
10 numeric keys 1 9 0 and its upper gear symbols ! @ # $ % ^ & *
26 letter keys A Z and its lowercase letters a z
11 symbol keys { [ } ] : ; " ' < , > . ?
6 function keys <Esc> <Tab> <CapsLock> <BackSpace> <Space> <Enter>
3 pairs of key combinations: left and right Shift, left and right Alt, left and right Ctrl
Later, with the development of computers, the number of keys on the keyboard gradually increased.
The direction keys F1 F12 function keys, auxiliary keyboard area and small keyboard area appear.
Even the left and right Win keys and shortcut menu right keys that appeared later
Not to mention the small and exquisite mouse and GUI graphical user interface instead of command line program
These have greatly facilitated people's computer operation, but we can't help but ask questions
How did people in ancient times operate terminals with only 59 keys before these later keys?
As a relic from ancient times, BBS gave us a chance
Now, let us abandon the auxiliary keyboard area and the small keyboard area and only use the main keyboard area to operate the terminal.
Enter our terminal experience journey
Travel 1 Ctrl control key 0 127 ASCII code table
Travel 2 Introduction to Esc key combination
Travel 3 Esc key combination is a special key
Travel 4 Esc key combination is a visible character
Travel 5 Esc key combination is an invisible character
to be continued
Reprint: Sun and Moon Guanghua bbs.fudan.edu.cn [FROM: 10.100.111.111]
Modification: monopoly modified this article at 13:36:37 on September 18th [FROM: 10.100.111.111]
