Apple 250 manual About This Note, Conventions Used in This Note

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P R E F A C E

About This Note

This note is a supplement to the Macintosh Developer Notes, Number 2, Macintosh Duo System, APDA publication number R0457LL/A. It describes the design features of the PowerBook Duo 250 computer, which is basically a PowerBook Duo computer with an active-matrix display and expanded hard disk capabilities.

This note provides the hardware or software developer with the additional information needed to design hardware and software elements for the PowerBook Duo 250 computer. This publication assumes you are familiar with the functionality and programming requirements for Apple Macintosh computers. It consists of three chapters

Chapter 1, “Introduction to the PowerBook Duo 250 Computer”

Chapter 2, “Hardware Modifications”

Chapter 3, “Software Modifications”

It also contains an index.

Conventions Used in This Note

This developer note uses the following conventions:

Note

A note like this contains information that is interesting but not essential for an understanding of the text.

IMPORTANT

A note like this contains information that is essential to an understanding of the text and of the equipment or software described.

W AR N I N G

A note like this directs your attention to something that could cause injury to staff, damage to equipment, or loss of data.

A slash in front of a signal name (/RESET) indicates an active low signal.

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Contents PowerBook Duo Limited Warranty on Media and Replacement Contents Page Figures and Tables Page Conventions Used in This Note About This NoteLCD Other Reference MaterialApda For More InformationPage Introduction to the PowerBook Duo 250 Computer PowerBook Duo 250 Computer Features Main expansion connector Page Hardware Modifications Active-Matrix Display Features MB Hard Disk Drive Inverter/Speaker BoardEnvironmental Specifications Housing Requirements1Hard disk drive housing Hardware Modifications Bracket for the hard disk drive Interface Requirements Hard Disk InterfaceGND Terminator Startup Not Applicable Random Operation Idle Standby Power RequirementsSoftware Modifications PowerBook Setup Panel PowerBook Duo 250 Control PanelsCustom and Easy Controls for Battery Conservation PowerBook Control PanelPower Conservation Index X, Y, Z
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