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Technical Notes: Legacy Technologies
As Apple hardware devices evolve, the technologies they encompass change to meet the needs of developers and users. As part of this evolution, less efficient features, interfaces, and programming techniques are deprecated or retired in favor of newer ones. Apple makes these changes only when deemed absolutely necessary. A technology identified in the ADC Reference Library as deprecated has been superseded and may become unsupported in the future. A technology identified as unsupported is no longer available from Apple for use by developers. Legacy documents help developers understand legacy technologies, identify replacements, and update their products to operate with current Apple platforms.
View all Hardware Technical Notes.
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Title		 Sort by
Legacy Status		 Sorted by
Date
USB Software Locator (HTML)
TN1191.
 Unsupported 2004-07-06
ADB - The Untold Story: Space Aliens Ate My Mouse (HTML) (PDF)
HW01.
 Unsupported 2000-08-14
CD-ROM Driver Calls (HTML) (PDF)
DV22: Discusses public interface to Apple CD-ROM driver and supersedes information in AppleCD SC Developer's Guide.
 Deprecated 2000-08-14
LaserWriter 8.5.1: The Extended 'PAPA' Resource (HTML) (PDF) ()
TN1115.
 Unsupported 2000-08-14
MicroBug: The ROM Debugger (HTML) (PDF) ()
TN1136.
 Unsupported 2000-08-14
Our Checksum Bounced (HTML) (PDF)
DV12.
 Unsupported 2000-08-14
PowerPC Compatibility and Performance Issues (HTML) (PDF)
PT38.
 Unsupported 2000-08-14
Understanding the SerialDMA Driver (HTML) (PDF) ()
TN1018.
 Unsupported 2000-08-14
Writing Custom Hoses for LaserWriter 8.6 (HTML) (PDF) ()
TN1144.
 Unsupported 2000-08-14
The Monster Disk Driver Technote (HTML) (PDF)
TN1189.
 Unsupported 1999-11-01
Serial Port Apocrypha (HTML) (PDF) ()
TN1119.
 Unsupported 1998-04-01
AppleVision Technote (HTML) (PDF) ()
TN1105.
 Unsupported 1997-12-01
Power Management & PC Card Manager 3.0 (HTML) (PDF) ()
TN1099.
 Unsupported 1997-07-01
Power Management & The Energy Saver API (HTML) (PDF) ()
TN1086.
 Unsupported 1996-12-01
Power Management & Servers: Auto Restart From Power Failure (HTML) (PDF)
TN1079.
 Unsupported 1996-11-01
SIMMs to DIMMs: Making Sense Out of Memory Expansion for the Power Macintosh (HTML) (PDF)
TN1055.
 Unsupported 1996-07-01
Strategies for Dealing with Low-Memory Conditions (HTML) (PDF) ()
TN1042.
 Unsupported 1996-05-01
HFS Tidbits (HTML)
FL07.
 Unsupported 1995-11-01
Register A5 Within GrowZone Functions (HTML)
ME01.
 Unsupported 1995-11-01
On Power Macintosh Interrupt Management (HTML) (PDF)
TN1001.
 Unsupported 1995-10-01
Understanding PCI Bus Performance (HTML) (PDF)
TN1008.
 Unsupported 1995-10-01
Composite SIMMs Not Supported (HTML) (PDF)
HW33.
 Unsupported 1993-06-01
Docking Manager Q&As (HTML) (PDF)
DV526.
 Unsupported 1993-05-01
Sleep Queue Tasks (HTML) (PDF)
HW31.
 Unsupported 1993-05-01
+5 Volt Trickle (HTML) (PDF)
HW21.
 Unsupported 1993-04-01
Fixed CLUT Devices and the Single Techno Nerd (HTML) (PDF)
QD19.
 Unsupported 1992-12-01
Little PowerBook in Slumberland (HTML) (PDF)
HW24.
 Unsupported 1992-10-01
Macintosh 21" Color Display Technical Specifications (HTML) (PDF)
HW27.
 Unsupported 1992-10-01
PowerBook Miscellanea (Cold Serial in the Morning) (HTML) (PDF)
HW28.
 Unsupported 1992-10-01
Fear No SCSI (HTML) (PDF)
DV24.
 Unsupported 1992-09-01
Sense Lines (HTML) (PDF)
HW30.
 Unsupported 1992-09-01
FPU Operations on Macintosh Quadra Computers (HTML) (PDF)
HW23.
 Unsupported 1992-06-01
Serial PollProc (HTML) (PDF)
DV21.
 Unsupported 1992-06-01
'pslt' resource - What Is It? (HTML) (PDF)
HW29.
 Unsupported 1992-01-01
Macintosh Quadra Built-In Video (HTML) (PDF)
HW26.
 Unsupported 1991-11-01
Using a PurgeProc (HTML) (PDF)
ME11.
 Unsupported 1991-08-01
8*24 GC QuickDraw and Deaccelerated CopyBits (HTML) (PDF)
QD16.
 Unsupported 1991-02-01
Bus Error Handlers (HTML) (PDF)
DV04.
 Unsupported 1991-02-01
CD-ROM Notes (Most Excellent) (HTML) (PDF)
DV18.
 Unsupported 1991-02-01
CMOS On Macintosh LC PDS (HTML) (PDF)
HW07.
 Unsupported 1991-02-01
NuBus Block Transfer Mode sResource Entries (HTML) (PDF)
HW15.
 Unsupported 1991-02-01
Serial GPi (General-Purpose Input) (HTML) (PDF)
DV16.
 Unsupported 1991-02-01
A/ROSE & MCP Card Q&As (HTML) (PDF)
PT505.
 Unsupported 1990-10-01
Apple Desktop Bus Q&As (HTML) (PDF)
HW505.
 Unsupported 1990-10-01
CD-ROM Q&As (HTML) (PDF)
DV505.
 Unsupported 1990-10-01
Communications Toolbox Overview Q&As (HTML) (PDF)
CM505.
 Unsupported 1990-10-01
Connection Manager Q&As (HTML) (PDF)
CM510.
 Unsupported 1990-10-01
Device Management Overview Q&As (HTML) (PDF)
DV520.
 Unsupported 1990-10-01
Device Manager Q&As (HTML) (PDF)
DV515.
 Unsupported 1990-10-01
Floppy Disk Interface Q&As (HTML) (PDF)
HW510.
 Unsupported 1990-10-01
Graphics Devices Manager Q&As (HTML) (PDF)
DV530.
 Unsupported 1990-10-01
Keyboard Resource Q&As (HTML) (PDF)
TE515.
 Unsupported 1990-10-01
Memory Hardware Q&As (HTML) (PDF)
HW515.
 Unsupported 1990-10-01
Memory Management Overview Q&As (HTML) (PDF)
ME510.
 Unsupported 1990-10-01
Miscellaneous Tool Q&As (HTML) (PDF)
PT540.
 Unsupported 1990-10-01
NuBus Expansion Interface Q&As (HTML) (PDF)
HW520.
 Unsupported 1990-10-01
PDS Expansion Interface Q&As (HTML) (PDF)
HW525.
 Unsupported 1990-10-01
Power Manager Q&As (HTML) (PDF)
DV545.
 Unsupported 1990-10-01
Power Supply Q&As (HTML) (PDF)
HW530.
 Unsupported 1990-10-01
Processors & General Logic Q&As (HTML) (PDF)
HW535.
 Unsupported 1990-10-01
SCSI Manager Q&As (HTML) (PDF)
DV550.
 Unsupported 1990-10-01
SCSI Port Q&As (HTML) (PDF)
HW540.
 Unsupported 1990-10-01
Serial I/O Port Q&As (HTML) (PDF)
HW545.
 Unsupported 1990-10-01
Slot Manager Q&As (HTML) (PDF)
DV560.
 Unsupported 1990-10-01
Sound Input Q&As (HTML) (PDF)
TB565.
 Unsupported 1990-10-01
Token Ring Q&As (HTML) (PDF)
NW580.
 Unsupported 1990-10-01
VIA IC Q&As (HTML) (PDF)
HW550.
 Unsupported 1990-10-01
Video Hardware Q&As (HTML) (PDF)
HW555.
 Unsupported 1990-10-01
Byte Smear(ing) Tactics (HTML) (PDF)
HW05.
 Unsupported 1990-08-01
Driver Education (HTML) (PDF)
DV23.
 Unsupported 1990-08-01
Macintosh IIfx: The Inside Story (HTML) (PDF)
HW09.
 Unsupported 1990-04-01
Monitor Depth : Gimmie Depth Or Gimmie Death (HTML) (PDF)
DV10.
 Unsupported 1990-04-01
SCSI Termination (HTML) (PDF)
DV15.
 Unsupported 1990-04-01
Sony Driver: What Your Sony Drives For You (HTML) (PDF)
DV17.
 Unsupported 1990-04-01
Absolute Pointing Device Memory Structure (HTML) (PDF)
DV01.
 Unsupported 1990-02-01
High-Level Control and Status Calls: When a Good Call Goes Bad (HTML) (PDF)
DV09.
 Unsupported 1990-02-01
Cache As Cache Can (HTML) (PDF)
HW06.
 Unsupported 1989-10-01
Macintosh Portable PDS Development (HTML) (PDF)
HW12.
 Unsupported 1989-10-01
Macintosh Portable ROM Expansion (HTML) (PDF)
HW13.
 Unsupported 1989-10-01
NuBus Power Allocation (HTML) (PDF)
HW18.
 Unsupported 1989-10-01
Slot Interrupt Prio-Technics (HTML) (PDF)
HW20.
 Unsupported 1989-10-01
Drivers & DAs in Need of (a Good) Time (HTML) (PDF)
DV19.
 Unsupported 1989-08-01
Opening the Serial Driver (HTML) (PDF)
DV11.
 Unsupported 1989-08-01
Cooperating with the Coprocessor (HTML) (PDF)
HW22.
 Unsupported 1989-06-01
NuBus Physical Designs - Beware (HTML) (PDF)
HW17.
 Unsupported 1989-06-01
Speedy the Math Coprocessor (HTML) (PDF)
HW32.
 Unsupported 1989-06-01
Macintosh SE/30 Info (HTML) (PDF)
HW14.
 Unsupported 1989-04-01
NuBus Interrupt Latency (I Was a Teenage DMA Junkie) (HTML) (PDF)
HW16.
 Unsupported 1988-12-01
Macintosh Memory Configurations (HTML) (PDF)
HW25.
 Unsupported 1987-11-01
Hard Disk Hacking (HTML) (PDF)
DV08.
 Unsupported 1987-09-01
ADBReInit on the SE with System 4.1: Don't Call It (HTML) (PDF)
HW02.
 Unsupported 1987-07-01
Color Monitor Connections (HTML) (PDF)
HW08.
 Unsupported 1987-07-01
Macintosh Plus ROM Versions (HTML) (PDF)
HW11.
 Unsupported 1987-07-01
SCSI Bugs (HTML) (PDF)
DV14.
 Unsupported 1987-07-01
Suppliers for Macintosh II Board Developers (HTML) (PDF)
HW03.
 Unsupported 1987-07-01
System Error 33, "zcbFree has gone negative" (HTML) (PDF)
ME08.
 Unsupported 1987-07-01
LaserWriter ROMs Bugs (HTML) (PDF)
PR05.
 Unsupported 1987-05-01
_AddDrive, _DrvrInstall, and _DrvrRemove (HTML) (PDF)
DV02.
 Unsupported 1987-03-01
Boot Blocks (HTML) (PDF)
DV03: Warns that Boot Block form and function will change and describes undocumented Boot Blocks features.
 Deprecated 1987-03-01
MoveHHi and SetResPurge (HTML) (PDF)
ME05.
 Unsupported 1987-03-01
Break/CTS Device Driver Event Structure (HTML) (PDF)
HW04.
 Unsupported 1986-12-01
Large-Screen Display Compatibility (HTML) (PDF)
OV07.
 Unsupported 1986-11-01
ImageWriter II Paper Motion (HTML) (PDF)
PR17.
 Unsupported 1986-04-01
Finding Drivers in the Unit Table (HTML) (PDF)
DV06.
 Unsupported 1986-02-01
Forcing Floppy Disk Size to be Either 400K or 800K (HTML) (PDF)
DV07.
 Unsupported 1986-02-01
Macintosh Plus Pinouts (HTML) (PDF)
HW10.
 Unsupported 1986-01-01
Pinouts (HTML) (PDF)
HW19.
 Unsupported 1985-04-01
Finders and Foreign Drives (HTML) (PDF)
TB10.
 Unsupported 1984-05-01