Standard And Optional Features; General-Purpose Features - Xerox 560 Reference Manual

• Language processors and utilities and applications
software for both commercial and scientific users.
• Peripheral equipment includes:
• Card equipment: Reading speeds up to 1500 cards
per minute; punching speed of 100 cards per min-
ute; intermixed binary and EBCDIC card codes.
• Line printers: Fully buffered with speeds up to
1250 lines per minute; 132 print positions with
character sets containing 64 or 95 characters.
• Magnetic tape units: 9-track systems, single or
dual density (1600 or 800/1600 BPI), industry-
compatible; high-speed, automatic loading units
operating at 125 inches per second with trans-
fer rates up to 200,000 bytes per second; and
at 75 inches per second with transfer rates up
to 120,000 bytes per second.
• Rapid Access Data (RAD) and disk files: RAD
capacity of 2.9 million bytes, with a transfer
rate of 750,000 bytes per second; disk capa-
cities in increments of 86 mi Ilion bytes (format-
ted) per unit with a transfer rate of 806,000 bytes
per second, and in increments of 49 million bytes
per unit with a transfer rate of 312,500 bytes
per second.
• Keyboard printers: 10 characters per second.
• Data communications equipment: Complete line
of character-oriented, message-oriented, and
procedure-oriented equipment to connect remote
user terminals (including remote batch) to the
computer center via common carrier lines and
local terminals directly.
STANDARD AND OPTIONAL FEATURES
A basic system has the following standard features:
• A basic processor (BP) that includes:
• Full instruction set
• Memory map with access protection
• Register blocks (4)
• Multiplexor Input/Output Processor (MIOP) with:
• 16 subchannels
• 1- or 4-byte interface
• Input/Output Adapter
• Two memory units that include:
• Dual port access
~
Memory write lock protection
• A system control processor that inc I udes:
• Real-time clocks (4)
• Internal interrupts (14)
• Power fail-safe detection
• External Direct Input/Output Interface (DIO)
• External Control Subsystem (ECS)
• System Control Panel (SCP)
• Configuration Control Panel (CCP)
• Local and remote assist facility
• Error detecti on faci
I
i ti es
• Diagnostics
A system may have the following optional features:
• BP options:
• Up to 48 external priority interrupts (in groups
of 12)
• Memory options:
• Memory expansion up to 256K words
• Up to 4 additional access ports (in sets of 2).
• Input/ Output opti ons:
•
Multiple I/O cluster/.
• Up to 3 additional MIOPs, each with 16 sub-
channel s, per
cI
uster.
• One Input/Output Adapter (for one MIOP)
per cluster.
• One Rotating Memory Processor (RMP) per
cluster.
GENERAL-PURPOSE FEATURES
General-purpose computing applications are characterized
by emphasis on computation and internal data handling.
tThe aggregate of processor clusters is restricted by the max-
imum memory port limitation of 6.
Standard and Optional Features/General-Purpose Features 3