Performance
The
Model 350
computer
provides 3-5
MIPS
computational
performance
and
offer high-
performance graphics display
to
match
the
CPU.
They
are
typically used as group resource
workstations
(shared by several designers)
and
as group
computational
and
shared
peripheral
resources when networked
to
lower performance workstations belonging
to
individual engineers.
These
workstations
must
be
able
to
run
UNIX-based applications for:
• Advanced design
tasks
(ME,
EE,
and
others)
•
Expert
Systems
Development
•
PC
Board
Routing
•
Circuit
Simulation
High-end
workstations
must
be
networked
via
industry-standard
LAN, preferably have
AT&T
System
V UNIX
2
operating
system
compatibility, high-resolution monochrome
or
color displays,
and
very large
RAM
capacities.
Performance
of
Model 350
workstations
is
about
four times that
of
a VAX 11/780*
minicomputer
doing integer
computation.
Now, applications once limited
to
large mainframes
can
be
executed
locally. New applications
of
artificial intelligence, coupled
with
design software,
can
now
be
developed
and
significantly increase
the
productivity
of
the
design professional.
Full
potential
of
the
MC68020 processor is realized by
the
use
of
a 32
Kbyte
cache
with
32-bit
wide entries
operating
at
a 120 nsec cycle
time
(zero processor wait
states).
This
large, high-
performance cache buffers
the
25
MHz processor from
the
main
memory
operating
at
an
average
180 nsec cycle
time
over a 32-bit wide system bus.
Hewlett-Packard's
custom
Memory Man-
agement
Unit
(MMU)
translates
virtual
memory addresses into physical memory addresses in
parallel
with
cache-miss detection
(HP-UX
only).
This
means
that
maximum
system
throughput
is
maintained
for very large
programs
and
multiple processes.
*
Workstation
vendors
use
the
VAX
11/780
performance
as
the
yardstick
for
system
CPU
performance
(MIPS).
Using
this
yardstick
makes
the
Model 350 a 4
MIPS
system.
2
UNIX
is a
trademark
of
AT
& T
4
Product
Information
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