So, the user might press compose, /,
c to produce the cent symbol (??) or compose, c, comma to produce the letter c with a
cedilla (?§).
The most complex keyboard input methods are required for Asian languages, which
have very large alphabets of ideographs (idea-pictures). Input methods for Asian languages
typically involve entering several keystrokes to phonetically or structurally
describe the desired character; if this does not narrow down the selection to a single
glyph, then the final selection is performed graphically. Although these input methods
require multiple keystrokes per character, each character conveys more meaning,
so the average typing speed can be similar to that attained in languages with
smaller alphabets.
1.10
14 Chapter 1: Introduction to the X Window System
Most keyboards contain a simple microprocessor and a serial or USB interface, and
have three LEDs to indicate keyboard status.
Monitors
All video systems work by scanning dots (or pixels??”picture elements) from left to
right, top to bottom on the display. For each pixel on a color display, three pieces of
information are sent: the individual brightness levels for the red, green, and blue
(RGB) components of that dot.
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