Model D2 Plus
The Leading Edge Model D2 Plus, like the Model D2 before it, came equipped with an Intel
286 processor which could be selected using the keyboard to run at 8 or 12 MHz The D2 Plus is a
facelifted model which had a much‐needed physical revision and replaced the 720K
3.5" disk drive with a 1.44 MB 3.5" drive but retained the
5.25" 1.2MB drive. The computer could be configured with an optional hard
disk drive with a BIOS supporting multiple IBM compatible drives, optional VGA card, a
user upgradable 287 math co‐processor socket, and up to 4 MB of RAM with 1 MB being
standard. Pack‐in software included MS‐DOS 5.0,
GW‐BASIC, and mouse support software for the included Z‐NIX Inc mouse.
Starting at the front of the computer, a white plastic face‐plate greeted the user with the vibrant Leading Edge triple‐triangle in the upper left corner. Vertical accent lines molded into the plastic stretched across the face with the first five lines going nearly from top to bottom while the remining lines were much smaller. The central area of the face‐plate was flat and accommodated most of the forward‐features. First were the keyboard lock, hard drive activity light, and 12Mhz / 8Mhz clock‐speed indicator lights inside of a handsome grey‐accented label. Directly to the right of the keyboard lock and indicators were the two floppy drives, with the 5.25" 1.20 MB drive on top and the 3.5" 1.44 MB drive directly below it. To the right of the drives came the power on / off rocker switch with a red power LED above it and below the power rocker was the reset button. Finally, at the bottom of the front face‐plate and just left of center was the AT Keyboard jack.
Both the left and right side panels of the computer were a mirror image of each other. There was not much to speak of here other than a couple of screws on each side to aid in holding the case's top on, the rest of each side is flat with a small area near the bottom being pressed in slightly that gave the metal case rails for easy locating when placing the cover back onto the chassis.
The back of the case was all business. There were no pleasant little plastic trims to make it more eye‐pleasing, just the necessities. Starting at the left of the back panel with the user looking directly at it, were the Leading Edge label that indicated the model and power usage, typical FCC ID data, and some certifications. To the right of the label was the louvered fan vent and right of that were two power plugs, one for power in and the other for power out, usually intended to power a monitor. Directly below the power plugs and fan vent were the majority of the computers' I/O ports. These were the standard ports for each D2 motherboard and they included: a PS/2 mouse port, two serial ports, and one parallel port. North of the right‐side I/O port was a case break‐out that could accommodate additional I/O, usually serial. To the right of all of the motherboard's I/O were the vertical expansion bays. If a customer opted for the optional VGA card, it was generally populated on the last expansion port. There were a total of six expansion bays, including four 16‐bit and two 8‐bit ISA slots.
The bottom of the case, remarkably, was in a finished state with painted steel, some ventilation holes on the front and right side, and four cork feet to prevent furniture surface marring.