Editing Apple IIe

{{Infobox computer
| name         = Apple IIe
| image        = [[File:Apple IIe.jpg|250px]]
| caption      = Apple IIe – The Enhanced Apple II
| manufacturer = Apple Computer, Inc.
| type         = Home Computer
| release date = January 1983
| discontinued = November 1993
| price        = US$1,395 (1983)
| cpu          = MOS Technology 6502 @ 1.023 MHz (later 65C02)
| memory       = 64 KB RAM (expandable), 16 KB ROM
| storage      = External cassette, 5.25" floppy disk drive (Disk II), optional 3.5" drive, hard disk
| display      = 40×24 or 80×24 text, 280×192 graphics (6 colours), 560×192 monochrome (with Double Hi-Res)
| sound        = 1-bit built-in speaker (toggle)
| dimensions   = 48 cm × 38 cm × 11 cm
| weight       = 5.4 kg
| os           = Apple DOS 3.3, ProDOS, CP/M (with Z80 card)
| predecessor  = [[Apple II Plus]]
| successor    = [[Apple IIGS]]
| codename     = Diana
| model        = A2S2000, A2S2128 (Enhanced), A2S2064 (Platinum)
}}

The '''Apple IIe''' (styled as "Apple //e") is the third model in the Apple II series of personal computers produced by Apple Computer, Inc. Introduced in January 1983, it became the most popular and longest-lived Apple II variant, widely used in education, business, and the home.

== Architecture and Processor ==
The Apple IIe is based on the '''MOS Technology 6502''' microprocessor, running at 1.023 MHz. Later revisions (the Enhanced IIe and Platinum IIe) used the CMOS-based '''65C02''' CPU, which offered additional instructions and improved reliability.

Key architectural features:
* 8-bit data bus, 16-bit address bus (64 KB addressable memory space)
* Integrated keyboard with full ASCII support and four-way cursor keys
* Support for 80-column text (with included or optional 80-column card)
* Seven internal expansion slots for peripherals and upgrades

== Memory and Storage ==
The standard Apple IIe shipped with:
* '''64 KB RAM''' on the mainboard (expandable via memory cards)
* '''16 KB ROM''' containing Applesoft BASIC, Monitor, and system firmware

Storage options included:
* '''Cassette tape interface''' (via rear port) for basic program storage
* '''Disk II 5.25" floppy drive''' – the most common storage medium
* Optional '''3.5" UniDisk drive''' (with controller card) for ProDOS support
* Optional '''hard disk''' (e.g., ProFile) via expansion card

The IIe could be expanded with auxiliary memory cards, enabling up to 128 KB or more for advanced applications and double hi-res graphics.

== Display and Graphics ==
The Apple IIe featured versatile text and graphics modes:
* '''Text:''' 40×24 characters standard; 80×24 with 80-column card
* '''Graphics:'''
** '''Low-res:''' 40×48 pixels, 16 colours
** '''Hi-res:''' 280×192 pixels, 6 colours (colour limitations per line)
** '''Double hi-res:''' 560×192 pixels, monochrome or up to 16 colours (with extended memory and Enhanced IIe)

Video output was provided via composite video (NTSC), suitable for colour or monochrome monitors and televisions.

== Sound Capabilities ==
The Apple IIe included a simple '''1-bit speaker''', driven by toggling a memory-mapped address. This allowed for basic beeps and software-generated tones, but no dedicated sound chip. More advanced audio could be achieved via third-party sound cards (e.g., Mockingboard).

== Input/Output and Expansion ==
The IIe was designed for expandability and connectivity:
* '''Seven internal expansion slots''' for disk controllers, serial/parallel cards, memory expansion, CP/M cards, and more
* '''Auxiliary slot''' (for 80-column/extended memory card)
* '''Game I/O socket''' for paddles, joysticks, and light pens
* '''Composite video output''' (NTSC)
* '''Cassette input/output''' (mini-jack)
* '''DE-9 joystick port''' (on later models)
* '''Keyboard with reset key and open-Apple/closed-Apple keys'''

The IIe supported a wide range of peripherals, including printers, modems, and networking cards.

== Gallery ==
<gallery mode="packed" heights="180">
File:Apple IIe.jpg|Apple IIe (original, 1983)
File:Apple Platinum IIe.jpg|Apple IIe Platinum (1987)
File:Apple IIe Inside.JPG|Apple IIe Main Logic Board
File:Apple IIe original.jpg|Apple IIe with Disk II drives and monitor
</gallery>

[[Category:Apple Vintage Computers]]
{{Navbox-AppleVintage}}

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