Macintosh SE FDHD(1989.8.1 - 1990.10.15)

Code names: Plus Plus, Maui, Aladdin, Chablis, Freeport

Processor

CPU

Motorola 68000 microprocessor

7.83 MHz

32-bit architecture

Memory

RAM

1 or 2 MB, expandable to 4 MB

Addressing Modes: 24-bit

ROM

256K, ID: $037A, Ver: 0

PRAM

256 bytes of memory

CMOS custom chip with seven-year lithium battery

Disk Storage

Floppy Drive

1.4 MB floppy drive

Optional second internal and external floppy drive

Hard Drive

Optional 20 or 40 MB hard drive

Optional external hard drive

I/O Interfaces

Expansion

Macintosh SE expansion slot; uses a 96-pin Euro-DIN connector

SCSI

Uses a 50-pin connector (internal) and a DB-25 connector

   (external)

Apple Desktop Bus

Two Apple Desktop Bus (ADB) connectors for communication with

   keyboard, mouse, and other input devices

Serial

Two RS-232/RS-422 serial ports; 230.4 Kbaud maximum; mini

   DIN-8 connectors

AppleTalk Ver: 48

Sound

For external audio amplifier (standard miniature)

I/O Devices

Keyboards

Apple Keyboard: 81 keys, including numeric keypad and cursor

   keys

Apple Extended Keyboard: 105 keys, including 15 function keys,

   separate cursor pad, and 10-key numeric keypad

Mouse

Mechanical tracking; optical shaft at 3.94 pulses per mm (100

   pulses per in.) of travel; ADB connector

Sound and Video

Sound Generator

Four-voice sound with 8-bit digital/analog conversion using 22-

   kHz sampling rate

Video Display

9-in. (diagonal) screen; high-resolution, 512 by 342 pixel,

   bit-mapped display

Electrical

Line Voltage

90–140 VAC; 170–270 VAC

Frequency

47–63 Hz

Maximum Power

100 W, 0.83 A

Physical

Dimensions

Height: 13.6 in. (34.5 cm)

Width: 9.6 in. (24.4 cm)

Depth: 10.9 in. (27.6 cm)

Weight

17–21 lb. (7.7–9.5 kg)

Weight varies depending on whether hard drive or second floppy

   drive is installed

Mac OS Supported