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DISCUSSION The Apple Macintosh Portable computer offers complete Macintosh functionality in a portable design. It runs virtually all current versions of Macintosh software and provides full compatibility with other Macintosh hardware. There are two versions of the Macintosh Portable. The new Macintosh Portable features a backlight for added display visibility in low-light conditions. The Apple Macintosh Portable computer is the one Macintosh for the workplace, home, and any destination. With built-in networking and the ability to run virtually all current versions of Macintosh software twice as fast as the Macintosh Classic, the Macintosh Portable gives you all the capabilities you need for your primary computer. You also can take the Macintosh Portable with you and use it at meetings, at a client's office, or at home because everything you need--central processing unit (CPU), screen, standard size keyboard, pointing device, battery, and disk storage--is integrated into a single, easy-to-carry package. The Macintosh Portable delivers the superior graphics that people have come to associate with the Macintosh. Its backlight, active-matrix liquid crystal display (LCD) lets you see the full page width for easy editing of word-processing and other documents. This screen also has such a fast response time that the Macintosh interface looks and feels just like any other Macintosh computer. And the display's backlighting can be adjusted for a wide range of lighting situations, so you can see the screen as easily in bright light as you can in a dimly lit room. The Macintosh Portable has been designed to conserve power and extend battery life, so you can use it for 3 to 6 hours (6 to 12 on non-backlighted units) before the battery needs recharging. A battery desk accessory monitors and warns you when the battery is getting low. Like other Macintosh computers, the Macintosh Portable comes with the 1.4 MB SuperDrive, which allows you to work easily in different computing environments because it can read from and write to 3.5-inch Macintosh disks as well as MS-DOS, OS/2, and ProDOS disks. In addition, an internal 40MB hard disk drive accommodates large files and applications. You'll also find plenty of opportunities to extend the Macintosh Portable's capabilities. You can use eight built-in ports to expand the system with popular peripheral equipment, such as scanners and printers. Four internal expansion slots let you customize the Macintosh Portable to your specific needs. Your system can accommodate up to 8 MB of memory if you use third-party memory cards in the processor-direct slot. You also can use the processor-direct slot to add high-performance expansion cards for video, networking, and communications. Specifications: CENTRAL PROCESSING UNIT (CPU) - Microprocessor: 16MHz CMOS 68000 - Address Bus: 24-bit - Registers (32-bit): 17 - Addressing Modes: 14 COPROCESSOR - Power Manager Processor, Mitsubishi M50753 microcomputer chip MEMORY - Original Macintosh Portable: 1 MB of static RAM, expandable to 2 MB through the installation of a memory card in the RAM slot, and up to 9 MB when higher-density chips become available; 1 Wait state to access SRAM - New Macintosh Portable: 1, 2, or 4 MB of pseudostatic RAM, 2 and 4 MB through the installation of a memory card in the RAM slot, and up to 8 MB through the PDS slot (Apple Memory Card must be removed when you install a PDS memory card)*; 0 wait states to access PSRAM; PSRAM has a refresh cycle to refresh the chips every 15.6 Áseconds. - 256K bytes of ROM (Read-Only Memory) - 128 bytes of settable parameter memory with built-in battery backup - 32K bytes of RAM for the video display SCREEN - Active-Matrix Liquid Crystal - Full-page width - 640x400 pixels - New Macintosh Portable features a CCFL backlight for up to 55 nits of brightness KEYBOARD - Built-in 63-key keyboard - Optional 18-key numeric keypad (as trackball alternative) - Keyboard on New Macintosh Portable uses quiet keyswitches TRACKBALL - Low-power Apple Desktop Bus Trackball, 1.3-inch diameter trackball as pointing device - Left- or right-hand placement - Replaceable by numeric keypad MOUSE - Low-power Apple Desktop Bus Mouse (ADB), mechanical tracking, optical shaft encoding at 3.54 pulses per mm (90 pulses per inch) of travel DISK DRIVE - One 1.4 MB high-density SuperDrive (internal); two internal floppy drives when hard drive is not installed - External connector for 800K or 1.4 MB external floppy HARD DISK DRIVE - A low-power, ruggedized internal 3.5-inch 40MB drive - 40MB hard drive is standard on the new Macintosh Portable INTERFACES - One Apple Desktop Bus (ADB) connector for keyboard, mouse, and low-speed input devices - Two RS-232/RS-422 serial ports, 230.4K baud maximum (up to 0.920 Mbit per second if clocked externally) - SCSI interface - Stereo sound port for external audio amplifier - External drive port - External video port SOUND GENERATION - Apple Sound Chip (ASC) including 4-voice, wave-table synthesis and stereo sampling generator capable of driving stereo mini-phono-jack headphones or stereo equipment - Mixed stereo monophonic sound output through internal speaker ELECTRICAL REQUIRMENTS - Line voltage: 70 to 270Vac - Line frequency: 48 to 62Hz - Maximum power consumption: 15 watts ENVIRONMENTAL REQUIREMENTS - Operating temperature: 50 to 104F (10 to 40C) degrees - Storage temperature: -40 to 140F (-25 to 60C) for a period not to exceed 3 days; storage for longer periods must be within operating temperature range - Relative humidity: 5% to 95% - Altitude: 0 to 10,000 feet (0 to 3048m) SIZE AND WEIGHT - Height - Rear panel: 4.05 inches (102.87mm) - Front panel: 2.1 inches (53.34mm) - Base to highest point with display open: 11.0 inches (279.4mm) - Width: 15.25 inches (387.35mm) - Depth: 14.83 inches (365.25mm) - Weight (including battery): 13.75 lbs. (6.25kg) - Weight (including battery and hard drive): 15.75 lbs. (7.16kg) ----- Here is a list of changes to the Macintosh Portable. Original Macintosh Portable Backlight Macintosh Portable Model --------------------------- ---------------------------------- * 640x400 Active-Matrix * 640x400 Backlight Active-Matrix Display Display * 1MB SRAM on logic board, * 1MB CMOS Pseudostatic RAM, 1 wait state 0 wait states * Screen brightness-controlled * CDEV controls backlight contrast * 1MB Memory Card * 1MB and 3MB Memory Cards Pseudostatic * System Software 6.0.4 * System Software 6.0.7 and new CDEV disk * Backlight upgrade available * Backlight standard * Standard keyswitches * Quiet keyswitches * Hybrid chip * Custom resistor packs * Custom Macintosh Portable manuals * Standard manual suite with Macintosh Portable handbook * Steel plate in keyboard * Aluminum plate for keyboard * 6- to 12-hour battery life * 3- to 6-hour battery life * Apple Memory Card and third-party * Third-party PDS card memory PDS card memory supported cannot be used when Apple Memory Card is installed* *A problem with the memory decode chip on the Apple Memory Cards (1 MB and 3 MB) prevents third-party memory cards in the PDS slot from correctly addressing memory. Article Change History: 18 Oct 1995 - Changed title. Support Information Services EXTENDED Information section - Apple Internal Use - Service Providers and Support Professional APPLE EYES ONLY Information section - Apple Need-To-Know Confidential Article Change History: |
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