The Enhancement was to make the IIe machine more compatible with the Apple II+ and IIc models. The 65C02 CPU added more instruction sets, the new ROM firmware fixed bugs and improved Applesoft BASIC, Monitor and 80 column routines. The only difference was thatfour socketed chips had been changed on the motherboard: 6502, CD and EF ROMs, and the Video ROM. Introduced in March 1985, the Enhanced Apple IIe was almost identical in every aspect to the original IIe.Double-Hi-Res graphics required an Extended 80 Columns Card plugged in (128 kB RAM total), as well as a Revision B or greater motherboard. It also added a special video signal available to slot-7. A few month after its release, Apple came out with a new IIe motherboard, labeled Revision B, that allowed the computer to display Double-Hi-Res graphics.It wasn’t until 1984 that ProDOS came around. However, the first Apple IIe’s came with the standard of DOS 3.3. In fact, ProDOS made the Apple IIe the easiest-to-use computer of its time. The Apple IIe was the first computer to be shipped with ProDOS operating system, which was used in the Apple III’s SOS (Sophisticated Operating System).Among them was the ProDOS operating system, which was based on Apple III’s Sophisticated Operating System (SOS).

Some of its features were carried over in the design of the Apple IIe. Two and a half years before the Apple IIe, Apple produced and unsuccessfully marketed a computer called the Apple III for business users.Terminated: March 1985, replaced by an updated Apple computer model. Input/Output by joystick or Mouse:DE-9.In fact, revision B boards which came with IIe had the very same videomodes as the //c). With revision B boards, it was also possible a 4 bit, 80×48 mode. (In fact 140 x 192 and 240 x 192 of 280 x 192, they were the very same video mode, displayed differently depending on what type of display monochrome or color was attached. Operation System:Standard DOS 3.3 in 1983-1984.Expansion Slots: Eight proprietary slots.RAM slots: Expansion via the first slot.Platinum edition, released in 1985, was shipped with 128 kB as standard.

Maximum RAM: 128 k, with Extended 80 Columns Card.

Processor: CPUMOS Technology/SynerTek 6502.

A numeric keypad was now built-in, besides the main keyboard had the same layout as the Apple IIgs and Macintosh SE (see also below).

Indeed the color was changed from beige to the then standard platinum/grey color. The biggest difference consisted in the case color. Changes in this version were though cosmetic and superficial. In January 1987 the Platinum Apple IIe was released. The enhanced model was identical in every aspect to the original Apple IIe with a few improvements (see below). In March 1985 Apple introduced the Enhanced Apple IIe.

Apple computer serial number specs