Technical information

xi
PREFACE
Note
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for an understanding of the text.
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IMPORTANT
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Standard Abbreviations 0
When unusual abbreviations appear in this book, the corresponding terms are
also spelled out. Standard units of measure and other widely used
abbreviations are not spelled out. Here are the standard units of measure
used in this developer note:
Other abbreviations used in this note include
A amperes mA milliamperes
dB decibels µ A microamperes
GB gigabytes MB megabytes
Hz hertz MHz megahertz
in. inches mm millimeters
k 1000 ms milliseconds
K 1024 µ s microseconds
KB kilobytes ns nanoseconds
kg kilograms Ω ohms
kHz kilohertz sec. seconds
k Ω kilohms V volts
lb. pounds W watts
$ n hexadecimal value n
ADB Apple Desktop Bus
AGC automatic gain control
BIOS basic input/output system
CAS column address strobe (a memory control signal)
CD compact disc
CGA Color Graphics Adapter
CLUT color lookup table
CPU central processing unit
DAC digital-to-analog converter
DC direct current
DMA direct memory access
continued