The Apple IIe Card is a compatibility card which allows compatible Macintosh computers to run software designed for the Apple II series of computers. Released in March 1991 for use with the LC family, 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
Apple asked the media to call the peripheral the "Apple IIe option board", as earlier "emulator" cards were not successful. Like the Apple IIe itself, the Apple IIe Card uses an onboard 65C02CPU. 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 is handled through software using native Macintosh QuickDraw routines, which often results 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 color High-Resolution graphics and 560x192 monochrome double-high-rez/80 column text mode, using the card's onboard 17.234mhz oscillator in place of the usual video clock thanks to the local bus nature of the PDS slot. This was particularly applicable to the Color Classic which is otherwise fixed at 512×384 resolution; the monitor scan rate remains the same, but horizontal pixel density is increased by 10% to fit the greater resolution in the same width. The IIe card has 256K RAM; half is used to emulate the Extended 80-Column Text Card's 128K of memory, and half stores the IIe's ROM. Macworld reported that because Apple IIGS engineers helped design the IIe Card, all copy-protected and other software except for "a few very esoteric games" are compatible. 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 System 7 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, SCSIhard drive, and AppleSharefile 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 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. The product included an owner's manual, Y-cable, and two 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 .
Reception
Apple claimed that the LC helped the company regain educational market share lost to inexpensive PC clones., about half of the LCs sold to schools used the IIe Card.
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" floppydisk 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 the Apple IIe, only a full-screen mode is available and all native Macintosh functions are suspended while running. Macintosh functions and control resume only once emulation is completely shut down and exited.
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 lists the following models as Apple IIe Card-compatible: Color Classic, Colour Classic II, 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. To enable 24-bit addressing on supported systems, use the Macintosh Memory control panel.
