TITLE
    System 7: Specifications
Article ID:
Created:
Modified:
7145
5/31/91
4/16/01

TOPIC

    This article contains some specifications of Macintosh System 7.


DISCUSSION

    Built-in Fonts
    Two types of fonts are supplied with System 7: TrueType and bitmapped.
    TrueType fonts include:
    * Times (plain, bold, italic, and bold italic)
    * Helvetica (plain and bold)
    * Symbol
    * Courier (plain and bold)
    * Chicago
    * New York
    * Monaco
    * Geneva

    Print Drivers
    The following print drivers are included with System 7
    * ImageWriter and AppleTalk ImageWriter
    * LaserWriter
    * Personal LaserWriter LS
    * Personal LaserWriter SC
    * ImageWriter LQ and AppleTalk ImageWriter LQ
    * StyleWriter

    Networking Capabilities
    With System 7, the AppleTalk network system supports LocalTalk, Ethernet (EtherTalk), or Token Ring (TokenTalk). Over 16 million nodes per network are provided for with AppleTalk Phase II networking. Using Macintosh file sharing, up to 10 folders per machine can be shared, each having an unlimited number of enclosed folders. Up to 10 guest users can be connected to a networked hard disk, with up to 50 guest users identified in the Users and Groups file. User management is built into the software to allow entry of user names, passwords, group memberships, and access privileges for opening and modifying files.

    Memory and Storage
    With 24-bit addressing, up to 8MB of physical memory can be accessed and up to 14MB of memory can be accessed with virtual memory, depending on which model Macintosh is being used. With 32-bit addressing, 1 gigabyte of physical memory is accessible (without taking into account the hardware limitations) and up to 1 gigabyte of virtual memory is accessible.

    A minimum of 2MB of RAM is required to run System Software Version 7.0. The amount of memory used by System 7 alone (without any additional third party software) is 1MB to 1.25MB, depending on configuration.

    Approximately 2.5MB to 4MB of disk space is consumed by System 7, depending on configuration.

    Compatibility
    System 7 is compatible with most Macintosh System 6 applications. The processor is compatible with 68000, 68020, and 68030 microprocessors, 68851 Paged Memory Management Unit (PMMU), and 68881 and 68882 floating-point units (FPUs).

    Disk Formats
    The following disk formats are supported by System 7: 400K, 800K, 1.4MB Macintosh disks, 720K and 1.44MB read/write MS-DOS or OS/2.

    Files and Volumes
    Up to 31 characters with mixed case, spaces, and symbols are allowed with System 7's file naming conventions.

    Maximum file and volume size is 2 gigabytes. The maximum number of files per volume is 65,536.

    The maximum number of volumes open at once as well as the maximum number of tasks supported are limited only by the amount of available system memory.

    Sound
    Sound can be played from disk and input to disk. The maximum number of simultaneous sound channels is 4.


Document Information
Product Area: Mac OS System Software
Category: System 7.0x-7.1.x
Sub Category: General Topics

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