apple macintosh plus free download

File name macintosh_plus.pdf

K Service Source Macintosh Plus K Service Source Basics Macintosh Plus Basics Overview - 1 Overview This manual contains complete repair procedures for the Macintosh Plus, shown at left. Figure: Macintosh Plus K Service Source Specifications Macintosh Plus Specifications Introduction - 1 Introduction Specifications information for this product can be found in this chapter and also in the Spec Database, which you can access in one of three ways: -- Launch it directly by double-clicking the Apple Spec Database runtime alias at the top level of the Main Service Source CD. -- Select "Apple Spec Database" from the Service Source drop-down main menu. -- Click the Acrobat toolbar icon for the database, which is near the right end of the toolbar with the letters "SP." Specifications Processor - 2 Processor CPU Motorola 68000 microprocessor 7.83 MHz 32-bit internal data bus Specifications Memory - 3 Memory RAM 1 MB, expandable to 4 MB (150 ns or faster SIMMs) ROM 128K PRAM CMOS custom chip with 4.5 V, user-replaceable battery backup (includes 256 bytes of memory; remembers system parameters even with the machine switched off) Specifications Disk Storage - 4 Disk Storage Floppy Drive Internal, double-sided drive: uses 3.5-in., hard-case floppy disks--either double-sided, 800K capacity or single-sided, 400K capacity Specifications I/O Interfaces - 5 I/O Interfaces Floppy Drive External drive port; DB-19 connector SCSI One SCSI parallel port; DB-25 connector Mouse Mouse port; DE-9 connector Keyboard Synchronous serial keyboard bus; RJ-11 connector Serial Two RS-422 serial ports; mini DIN-8 connectors Specifications I/O Devices - 6 I/O Devices Keyboard 78 keys, including numeric keypad and cursor keys; RJ-11 connector Mouse Mechanical tracking; optical shaft encoding at 3.54 pulses per mm (90 pulses per in.) of travel; DE-9 connector Specifications