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Hardware Configuration:

DEC KI-10 Central Processor,
	software, manuals, and training		      $	250,000
(perhaps a discount can be obtained)

DEC MF-10 Core Memory,
	64K words (36 + 1 bits/word)
	1.0 usec cycle time, 4 ports,
	interleaved addressing. $ 84,000
	each. 4 recommended.				336,000
(if the memory is bought from an independent supplier,
the cost would be about half.)

Swapping Drum.
	A variety of suitable drums are
	available.  Vendors include
	Digital Development Corporation
	and General Instruments. 
	Estimated cost for 1.5 M words			120,000

IBM 3330 disk drives
	3830-2 control unit and 3333 controller
	and 3 3330 drive units. 8 pack capacity.	160,000
	(Two year lease price of double-density
	3330 file storage facility is less than
	5 cents/track/month. Each track holds
	more than 11,000 characters.
(This would be shared with the 370 computer)

IBM-compatible Selector Channel.
	Systems Concepts SA-10, $ 37,000
	each.  Each SA-10 is actually two
	independent channels.  Required
	to communicate with IBM peripherals
	(3330 disks, Magnetic tape units,
	line printers, etc.)
	Two SA-10's a recommended			 74,000
(It may be better to get by with one)

DEC disk system,
	Includes a single density 2314-style
	drive, controller and channel. We do
	want this.  It has been suggested that
	DEC will not maintain the KI-10 without
	it; we hope that this is subject to
	negotiation.					 60,000

BBN Terminal Interface Message Processor (TIP)
	Communicates with 64 terminals, 3 host
	computers and the ARPA-net.			120,000

Terminal System						200,000
	Includes 64 terminals, any 32 of which
	may be active simultaneously.  This
	system will have access to each of the
	CPU's in the configuration.

DEC Tape system.
	Provides a controller and two DEC Tape
	drives.						 20,000

Industry Magnetic Tape
	We anticipate being able to share this
	resource with the other CPU's in this
	facility.

Miscellaneous Peripherals
	Line printer, plotter, special interfaces	100,000


Total Hardware Cost:				      1,440,000


Operating Cost:

	Systems Programmers (3)
	Operators	    (3)
	User Services	    (3)
	Management	    (1)
	Yearly total personnel, indirect costs:
					      200,000 - 250,000
(These operational costs are in accordance with present Stanford
Computation Center practices.  Other PDP-10 installations use no
operators at all.  A more Spartan system would have two system
programmers (one doubling as manager) and two other people sharing
the administrative, user services, and operational responsibilities.)

	Maintenance and supplies			 50,000


One Time Costs:  ?


Configuration Goals

	We  wish to  bring  to  the  Stanford community  a  class  of
interactive  computing that is  not presently available  and which is
not  included  in  existing  plans.    The  Campus   facility  offers
excellent  batch/remote entry  service.   This proposal  would extend
the service  of the Campus facility to include an interactive service
on a new computer system.  

	We  have selected  the  Digital Equipment  Corporation  KI-10
Central processor as  the nucleus of the system proposed here.  There
are several  reasons for  selecting the  KI-10,  which are  explained
below.   Despite  our feeling  that the  KI-10 is  the most  suitable
computer,   the goal  here is to  provide a new,  needed and valuable
service to Stanford.  Details  of this proposal may be changed,   but
the  overriding  consideration  is  to  further the  educational  and
research goals of the University.

	There  are several  reasons for  selecting a  KI-10 computer.
Stanford has  two PDP-10's  (KA-10's)  already and  they have  proven
themselves  in service since  1968.   The KI-10  is the  successor to
these machines.   Better  and larger  interactive systems  have  been
built on PDP-10's  than on any  other computer; a  complete selection
of software  (assemblers, compilers, loaders,  debuggers, editors) is
available with full product support from the manufacturer.   PDP-10's
are in  widespread use  throughout universities  and industry.   Many
applications programs are available through the DEC Users Society.

	The proposed  configuration provides  for interactive use  by
64 terminals,   with the ability to  expand to 256. Interactive users
will  have access  to  the  facilities  of  the  370/158  and  to  an
extensive file system.

	In  this  system   we  shall  keep  to  a   minimum  software
modifications  that make  compatibility  with future  developments in
either machine difficult.

	In addition to  providing interactive facilities  for program
and  document preparation,   the  KI-10 system  will provide  users a
large, inexpensive, file storage facility.

	Mini-computer users will be able to access the facilities of
the KI-10 to perform data analysis.

	The Stanford community  will have access to the  resources of
the  ARPA-net through the TIP  which acts as  a terminal concentrator
in addition to providing the network link.

	Each of  the  CPU's in  this configuration  will  be able  to
communicate  with  the others  by  means  of the  TIP.    Shared file
storage   also   allows   inter-processor   communication.       This
organization is  quite flexible; it allows  problem preparation using
the  editing facilities  of the KI-10,  online, interactive debugging
on  the  KI-10,  and  submission  of  production  runs  to  the  370.
Undergraduate  student's   jobs,  which  are   typically  very  small
computational loads,  can  be done  entirely  on the  KI-10.    Other
users, who require the  compute power of the 370/158 will  be able to
use  the KI-10  to prepare  their programs and  data, and  submit 370
jobs from  the KI-10. Languages  that are  standardized, FORTRAN  and
COBOL,  for   example,  are   available  on   all  machines   in  the
configuration.    Syntax errors  can  be  detected on  the  KI-10 and
removed before submitting the job  to the 370. The languages  used by
the Computer  Science Department in  their courses, ALGOLW,  MIX, and
LISP are all available on the KI-10.


	In   summary,  the   proposed   configuration  offers   these
	advantages:
	1. Interactive Computation
		Online program, data, and text preparation.
		Interactive execution of programs.
		Rapid turn-around.
		Online debugging.

	2. Inexpensive and flexible file storage.
		IBM 3330 double-density disk drives offer 
		file storage for 5 cents/track/month.
		(16,000 characters for a dollar a year.)

	3. Access to the ARPA net

	4. Flexibility.
		PDP-10 operating systems are easily adaptable.
		User needs which are not foreseen at present
		can be satisfied without disrupting the
		computational environment and without excessive
		costs of systems programming.  Modifications to
		the operating system can be made with ease. An
		entire new operating system can be assembled
		in a matter of minutes.