Appendix b: rampak 4gs power, Consumption, Appendix c: bits and bytes – Orange Micro RAMPAK 4GS User Manual
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APPENDIX B: RAMPAK 4GS POWER
CONSUMPTION
Independent of memory configuration:
Power Supply Voltage
Current
5 Volts
500 MA
(Maximum)
APPENDIX C: BITS AND BYTES
This is not intended to provide anything more than
a superficial understanding of bits and bytes and how
they relate to RAM chips and memory expansion.
All computer data is made up of zeros and ones, or
yesses and nos. This type of data is called BINARY by
people who define such things, as the data can come in
only two forms. When a computer deals with a single
zero or one, this is called a BIT. Of course, a system had
to be developed to allow computers to deal with diverse
forms of information, so that zeros and ones could be
translated into the letters, numbers and symbols
required to deal with real problems. Most
microcomputers, including your Apple IIGS, read eight
BITS together as a single piece of data. This unit of
binary data is called a BYTE. In general, you can think of
a BYTE as a character and a BIT as a building block.
Chips are generally measured by the number of
BITS they can hold. For this reason, the chips on your
RamPak are called 1-Meg Chips, even though you need
eight of them to add a MegaBYTE to your system. Since
we now know that there are eight BITS in a BYTE, it is
easy to see that you need eight megaBITS to make one
megaBYTE.
If you are interested in learning more about RAM,
Bits, Bytes and the science behind the computer, there
are many good books and magazines available on the
subject. Consult your dealer or visit your local library for
more information.
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