| The screenshots (and their accompanying descriptions) in this book are mainly from Mac OS X 10.3, also known as Panther. In most cases, you'll find that the descriptions will still work fine for Mac OS X 10.2 (Jaguar). This book uses the following abbreviations: -
- Hz, kHz, MHz, and GHz
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Hertz (cycles per second), kilohertz (one thousand hertz), megahertz (one million hertz), and gigahertz (one billion, or 10 9 hertz) -
- bps, kbps, Mbps
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Bits per second, kilobits (1024 bits) per second, and megabits (1,048,576 bits) per second -
- KB/s, MB/s
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Kilobytes (1024 bytes) per second and megabytes (1,048.576 bytes) per second This book uses the following typographic conventions: -
- Constant width
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Constant width is used for listing the output of command-line utilities. -
- Italic
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Italic is used for emphasis, for first use of a technical term , and for example URLs. -
- .. .
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Ellipses indicate text that has been omitted for clarity.  | This icon indicates a tip, suggestion, or general note. | |
 | This icon indicates a warning or caution. | |
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