Apple IIe Card

The PDS-based Apple IIe Card, featuring a 65C02 CPU, Mega II, IWM and 256 kB of RAM

The Apple IIe Card (Apple Computer part #820-0444-A) is a compatibility card which allows compatible Macs to run software designed for Apple II computers (except the 16-bit Apple IIGS). Released in March 1991 for use with the LC family of Macintosh computers, Apple targeted the card at its widely dominated educational market to ease the transition from Apple II-based classrooms, with thousands of entrenched educational software titles, to Macintosh-based classrooms.

Features

Like the Apple IIe itself, the Apple IIe Card uses an onboard 65C02 CPU. The CPU is software-configurable to run at the Apple IIe's native 1.0 MHz speed or at an accelerated 1.9 MHz. Video emulation (text and graphics) was handled through software using native Macintosh QuickDraw routines, which often resulted in operations being slower than a real Apple IIe except on higher-end machines. Any Macintosh that supports the card can be switched into 560×384 resolution for better compatibility with the IIe's 280×192 High-Resolution graphics (essentially doubled on the Macintosh). This was particularly applicable to the Color Classic which was otherwise fixed at 512×384 resolution.

The host Macintosh emulates, or provides native access to many of the expansion cards and peripherals one might install in a bare Apple IIe. These services provided to the IIe card makes the simultaneous running of the host's OS 7.x.x impossible. Hardware services include a 1.44 MB 3.5" SuperDrive, mouse, 1 MB RAM, 80-column text and graphical monochrome or color display, clock, numeric keypad, two hardware serial ports (in addition to the emulated serial necessary for the IIe mouse), SCSI hard drive, and AppleShare file server. An included "Y-cable" enables the attachment of up to two external 140 KB floppy disk 5.25" Drives, an 800 KB "intelligent" 3.5" UniDisk drive, and a joystick or paddle control for use with the hard-coded Apple IIe emulator. 800 KB 3.5" Drive and 1.44 MB SuperDrives are not recognized when attached via the Y-cable due to the Disk Controller on the IIe card lacking support. (chip labeled U1A located in zone A1 of card - lower left as pictured above)

The product included an owners manual, Y-cable, and 2 disks: the Apple IIe installer disk and the Apple IIe card startup disk. 2.2.2d1 is the latest version of the startup disk. Version 2.2.1 and a patch to reach 2.2.2d1 are available at Apple Support Area.

Technical specifications

Mega II ("Gemini" chip); a complete Apple IIe on chip minus RAM, firmware and CPU
IWM (Integrated Woz Machine); floppy control functions
256 KB RAM built-in (128 KB for Apple II memory, 128 KB reserved for Macintosh)
65C02 processor running at either 1.023 MHz or 1.9 MHz
High-density 26-pin connector with "Y-cable" supports joystick/paddles and two Apple 5.25" or UniDisk 3.5" floppy disk drives
Ability to access up to 1 MB of native Macintosh RAM
All Apple IIe text and video modes supported, via QuickDraw software emulation

Notes: When emulating an Apple IIe, only a full-screen mode is available and all native Macintosh functions are suspended while running. A graphical control panel is available for configuring the virtual Apple II slots and peripherals; however, the Macintosh (as well as Apple IIe emulation) still remains suspended during this activity. Macintosh functions and control resume only once emulation is completely shut down and exited.

Host system compatibility

The card plugs into the PDS slot in many of the LC-series Macintoshes, but not all models and system software combinations are supported. Apple's Tech Info Library article #8458 lists the following models as Apple IIe Card-compatible: Color Classic, LC, LC II, III & III+; LC 475, 520, 550, 575; Quadra 605 and Performa 4XX, 52X, 55X, 56X, and 57X. However, other models that have an LC-compatible PDS slot and support 24-bit memory addressing are compatible with the Apple IIe Card but are not officially supported. Systems 7.0 through 7.5.5 support both 24- and 32-bit addressing on suitable Macintosh models. (From System 7.6 onwards, Macintosh system software does not support 24-bit addressing.) To enable 24-bit addressing on supported systems, use the Macintosh Memory control panel.

Timeline of Apple II family models

Timeline of Macintosh LC models

External links

Apple hardware before 1998

Computers

Apple	Apple I Apple II series II II Plus IIe IIc IIc Plus IIGS Apple III

Compact Macintosh	128K 512K 512Ke Plus SE SE/30 Classic Classic II Color Classic

Macintosh II	II IIx IIcx IIci IIfx IIsi IIvi IIvx

Macintosh LC	Macintosh LC LC 500 series Macintosh TV

Macintosh Quadra	700 900 950 800 840AV 600 series 610 650 660AV 605 630

PowerBook	Macintosh Portable 68k-based PowerBooks 100 series 100 140 170 160 180 150 190 200 series 210 230 500 series PowerPC-based PowerBooks 2300c 5300 1400 3400c 2400c

Power Macintosh	6000 series 6100 6200 and 6300 6400 and 6500 7000 series 7100 7200 and 8200 7220 7300 7500 7600 8000 series 8100 8500 8600 5000 series 9000 series 9500 9600 G3 (beige)

Miscellaneous	Apple Lisa Macintosh XL Macintosh Performa Macintosh Centris Apple IIe Card (Macintosh PDS) Apple Workgroup Server 9150 Apple Network Server Twentieth Anniversary Macintosh

Peripherals

Displays	Monitor III Monitor II AppleColor Composite IIe AppleColor High-Resolution RGB Macintosh Color AudioVision 14 Multiple Scan 14 ColorSync 750

External drives	Disk II Macintosh ProFile Hard Disk 20 Hard Disk 20SC AppleCD PowerCD Tape Drive 40SC

Input devices	Keyboard Desktop Bus Extended Keyboard Adjustable Keyboard Mouse Scanner QuickTake

Networking	Apple II serial cards Apple Modem LocalTalk Apple Communication slot GeoPort

Printers	Silentype Dot Matrix Printer Letter Quality Printer ImageWriter LaserWriter 410 Color Plotter Color LaserWriter StyleWriter

Newton	MessagePad eMate 300

Other	Paladin PowerCD Interactive Television Box Pippin

Apple hardware since 1998

Apple hardware

Mac

Desktop

Current	iMac Mac Pro Mac Mini

Discontinued	Apple I Apple II series Apple III Apple Lisa Compact Macintosh Macintosh II series Macintosh SE Macintosh SE/30 Macintosh Classic Macintosh LC Macintosh LCII Macintosh Quadra Macintosh Performa Macintosh Centris Power Mac eMac

Laptop

Current	MacBook (Retina) MacBook Air MacBook Pro

Discontinued	Macintosh Portable PowerBook iBook MacBook (pre-2015)

Server

Discontinued	Apple Workgroup Server Apple Network Server Xserve Mac Mini Mac Pro

Devices

Current	Apple TV Apple Watch iPad Air Air 2 iPad Mini 2 4 iPad Pro iPhone 6 / 6 Plus 6S / 6S Plus SE iPod Nano Shuffle Touch

Discontinued	Interactive TV Box iPad 1st 2nd 3rd 4th iPad Mini 1st 3 iPhone 1st 3G 3GS 4 4S 5 5S 5C iPod Classic iPod Hi-Fi iPod Mini Newton Apple Pippin PowerCD Apple QuickTake

Accessories

Current	AirPort AirPort Express Router AirPort Extreme Router AirPort Time Capsule Displays Apple Thunderbolt Display Magic Mouse 2 Magic Trackpad 2 Apple Pencil Smart Keyboard Remote Siri Remote External SuperDrive Magic Keyboard

Discontinued	Displays Cinema Studio Drives iSight Modems Printers Scanners Mighty Mouse Magic Mouse Magic Trackpad Apple Wireless Keyboard

Apple Mobile Processors

64-bit	Apple A7 Apple A8 Apple A8X Apple A9 Apple A9X

32-bit	Apple A4 Apple A5 Apple A5X Apple A6 Apple A6X Apple S1

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