AT&T 3B2/300 Technical Reference Manual page 28

EQUIPMENT D E S C R I P T I O N - - - - - - - - - - - - - - - - - - - - - - - - - - -
3B2/400 computer
3B2/500 computer
3B2/600 computer
Beginning midrange model providing:
• One integral floppy disk drive
• One or two integral hard disk drives
• One cartridge tape drive
• Twelve feature card slots
• System Board, ED-4C637-30,G2 or GS equipped with a
WE 32100 Microprocessor, WE 32101 Memory Management
Unit, 10-MHz oscillator (system clock), and a WE 32106 Math
Acceleration Unit (optional, GS).
Expanded midrange model providing:
• One integral floppy disk drive
• One Small Computer System Interface (SCSI) hard disk drive
• One cartridge tape drive
• Seven feature card slots
• Five performance card slots
• System Board (CMS18A) equipped with a WE 32100
Microprocessor, WE 32101 Memory Management Unit, 18-MHz
oscillator (system clock), and a WE 32106 Math Acceleration
Unit.
Larger midrange model providing:
• One integral floppy disk drive
• Two SCSI hard disk drives
• One cartridge tape drive
• Twelve feature card slots
• Twelve performance card slots
• System board equipped with a WE 32100 Microprocessor,
WE 32101 Memory Management Unit, 18-MHz oscillator
(system clock), and a WE 32106 Math Acceleration Unit.
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