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Computing Basics
計算機學 基礎篇

Chinese KEYBOARDS

Ideographic Languages

數字
系統
Truth Table
Eight Qua
系統
變換
加減
乘除
字母
數字
符號
計算器
顯數窗
點陣
現字
漢字
顯現
簡明
易用
見字
設碼
漢字
數據化
玲瓏
系統
組合語言
Assembly
Language
uP
Software

十進位數 與 二進位數

9 + 1 = 0, 進位 1 (即 9+1=10);

1 + 1 = 0, 進位 1 (即 1+1=0, 進位 1)
[0001 + 0001 = 0010].

COMPUTING

BINARY

BCD & HEXADECIMAL

Logic Circuits
Chinese Eight Qua

Chinese stopped here some 7,000 years ago!

Letter, Number, & Symbol.

ASCII & EBCDIC

Note:
(1) IBM computers use EBCDIC.
(2) Mini- & Micro-computers use ASCII.

7-Segment Display

used by calculators

DOT MATRIX
DISPLAYS CHARACTERS

(Letters, Numbers, & Symbols)

Character Generator

Internal CODES & LETTERS


JOHN DOE

Letter, Number, or Symbol pattern (dot-matrix) is pre-set in ROM,
internal code(s) actually is(are) Memory ADDRESS(es).
Pattern (Letter, Number, or Symbol) can thus be called out, shown on screen.

"100001" is an executable instruction(addresses), machine language.
"J" is its corresponding "Symbolic Pattern(symbolic addresses)";

"110000" is an executable instruction(addresses), machine language.
"blank" is its corresponding "Symbolic WORD(symbolic addresses)".

THIS IS HOW & WHERE
Computer Language GETS STARTED.

電腦係以 二進位數 運作

How About Chinese?

They are also
FORMED BY DOTS .

English Character = 1 ASCII code

Character Width = 1 byte

Chinese Character = 2 ASCII codes

Character Width = 2 bytes

HexaDecimal System is used
to "represent" BINARY numbers
for simlicity.

為簡潔計, 通常均以 "十六進位數" 表 "二進位數".
例如:
4F = 01001111
B3 = 10110011
....... etc.

INTERNAL CODE 內碼

Chinese characters' INTERNAL CODES are
HexaDECIMAL (ROM addresses),*
0 1 .... 8 9 & A B C D E F,
with character fonts, Chinese thus can be shown on computer screen.

* See example above, one Chinese character has 2 ASCII Codes A4 & 41.

INPUT CODE 輸入碼

ZuYin: Using 26 letters, 10 numbers, & 6 symbols
PinYin: Using 26 letters & 3 numbers
ChongChi: Using 25 letters
TaYi: Using 26 letters, 10 numbers, & 4 symbols
GeoStroke : Using 10 numbers only

Which system has the
shortest character searching time,
least brain effort,
least finger(s) effort?

Chinese KeyBoards

You Know its Input Code
When See a Character.

THE CATCH IS
HOW TO MAKE THE
INPUT METHOD
SIMPLE
,
so that an average Chinese can use it EASILY,
and like to use it daily.

要點是:
使漢字數據化, 讓人見字即知輸入碼,
立即可以上機打字
.

Digitizing the Chinese characters

You Know its Input Code
When See a Character
.

Using Chinese Characters as
Email Address & Web Address