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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