Advertisement
I
Gemini User's Manual
printer, computers communicate data even faster. The buffer can
accommodate 816 characters of memory, with an optional buffer
that can be expanded to 4K or 8K.
Qu'est-ce que UK"?
Computer memory is measured in terms of K, meaning
kilobytes.
A kilobyte is 1,024 bytes, and a
byte
equals one letter
of the alphabet (or a symbol, or a number).
The print-out is accomplished by the
printer mechanism,
also
shown in Figure 1-5 and represented in Figure 1-6. The printer
mechanism can produce a variety of typographical styles and
sizes (including superscripts and
b
. t ) variable line spacing
su
SCriP
s'
,
adjustable tabs, and block graphics. Plus, the Gemini is
outstanding for the full range of papers upon which it can print.
I r = - - - - - - - - - i
I I
CONTROL LOGIC
I
I
BOARD UNIT
I
Control & Drive
K:===:::I
I
:==C=i=rc=u=it=B=IO=C=k~
Printer Mechanism
Parallel Interface
I
Block
r
Serlailntertac; -,
I
Block (optional)
I
L
_ _ _ _ _ _
..l
I
r------,
Power Supply Unit
I
I
I
4KJ8K Buffer
I
~ ~:~~~~~_...J
_____ _
~
A.C. Power
Figure
1-6.
This block diagram presents, in simple terms, the relationship
among the transformer, power supply, printer mechanism, and circuit control.
For more information on the control circuit, please refer to Appendix L.
8
• •
• •
• •
• •
• •
• •
• •
• •
•
I
• •
• •
•
Advertisement
