REPLACEMENT OF COMPUTER CENTRAL PROCESSING UNITS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-01794R000100200032-4
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 7
• Document Creation Date: December 12, 2016
• Document Release Date: December 26, 2001
• Sequence Number: 32
• Publication Date: June 14, 1973
• Content Type: MF

Approved For Rel
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MEMORANDUM FOR: Deputy Director for Management and Services
VIA: Deputy Director for Operations
Director, Office of Joint Computer Support
Chairman, Information Processing Board
SUBJECT: Replacement of Computer Central Processing Units
1. Paragraph 10 requests your approval to replace
two 370/155 computer Central Processing Units (CPU's) in
Information Services Division/DDO with two 370/158 CPU's.
2. The DDO has nearly finished loading to computer
storage the machine language representing the Main
We expect to search this large data
over eig t million records) by computer programs
late this summer, thus replacing reliance on the manual
3x5 card file. As confidence grows in the machine index,
the manual index will be phased out. A large part of the
confidence factor for the machine system will be based on
it being reliably available for use sixteen and one-half
hours each day.
3. Thirty-five remote terminals (Visual Display Units
- VDU's) will be attached to this system. An average of
thirty will be in use throughout the day, and approximately
twenty on the evening shift.
4. In addition to the Main index System 25X1C
the DDOr is g
three other on-line systems during the normal working day,
with a current compliment of twenty-one remote terminals,
5. The programs to run the four on-line systems are
too large to fit in the memory of either one of the present
CPU's, and must therefore be split between the two. If
either of the CPU's is down, some on-line systems must
stop and the others operate in a significantly degraded
mode.
6. It is therefore necessary to replace the smaller
of two CPU's with a 370/158, increasing the main memory
size from one million bytes of storage to two million
bytes. This will enable all on-line programs to run in
Approved For Release 2002/01/15 : CIA-RDP80-01794R000100200032-4
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one CPU, and provide better utilization of that machine.
The second CPU will be used for batch jobs, program
development and partial back-up. This change of CPU types
(from a 155 to a 158) will also permit study and
expermentation with the new Virtual System programs recently
released by IBM.
ILLEGIB
7. The CPU rents i,wou initially increase by a gross
of $8,235 per month. However, two separate disk storage
controllers could be released, resulting in a net increase
of $6,021. This chap a would take place #n January 1974.
8. If this CPU,replacement is approved, we plan to
exchange the present 370/155 1.5 memory,, for a 370/158
1.5 memory in April 1974. This would result in a net
saving of $4,309 per month. Therefore the total cost of
converting to 370/158's and increasing the total memory
by 1 million bytes would be a net of $1,712 per month.
This configuration was suggested by the Office of Joint
Computer Support and may be changed, depending on their
future plans. However, it should be scheduled at this
time.
9. Cost figures are detailed in attachments.
10. Your approval is requested for DDO/ISD to replace
the 370/155 Central Processing Unit (with one million bytes
of main storage) by a 370/158 Central Processing Unit (with
two million bytes of main storage), at a not cost of $6,021
per month and further to replace the 370/155 Central
Processing Unit (with 1.5 million bytes of main storage)
by a 370/158 Central Processing Unit (with 1.5 million
bytes of main storage) at a net decrease of $4,309 per
month.
25X1A
Chief, Information Services Division
Attachments (4): a/s
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 ? Approved For Rely R - - iTTuuO1172tfi4
25X1A
Deputy Director for Operations
25X1A
25X1A'
25X14
~ ?5 ~ 3
Chairman, in formation P ssing Boar D t
APPR
Deputy Director for Management an Services Date
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 370/155 Costs
Additional Features Equivalent to 370/158
Block Mux
3rd
1433
$405.
Block Mux
4th
1434
378.
Extended
Precision
Floating Point
3700
189.
3215 Adapter
7855
216.
3215 Printer
200.
$1,388.
155
Model
Million
Bytes
CPU +
Memory
Additional
Features
Storage
Total Controllers
Total
Cost
J
1.0
$32,570.
$1,388.
$33,958.
5,414.
$39,372.
JI
1.5
40,300.
1,388.
41,688.
5,414.
47,102.
K
2.0
46,840.
1,388.
48,228.
5,414.
53,642.
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date
 3830 Storage Controller Costs for 370/155
Two Per System
Approved For Re
3830-2 Storage Control $2,025.
Two Channel Switch 8170 200.
Control Store Expansion 2150 470.
3333 String Switch Attach. 8152 12.
'2707.
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 Approved For Rel
370/158 Costs
Additional Features Equivalent to 370/155
Block Mux 3rd 1433
$405.
Block Mux 4th 1434
378.
3213 Printer Attch 7840
100.
3213 Printer
210.
Extended Precision Floating Point 3700
N/C
$1,093.
Additional Features Available only on 158
Integrated Storage Controller(ISC)
4650
$2,200.
Two Channel Switch for ISC
7905
400.
Control Storage Expansion
2150
600.
$3,200.
158
M
de
Million
es
B
CPU +
Memor
Additional
Features To
S
tal Co
torage
ntrol(ISC)
Total
Cost
o
l
yt
J
1.0
$35,900.
$1,093. $36
,993.
$3,200.
$40,193.
JI
1.5
38,500.
1,093. 39
,593.
3,200.
42,793.
K
2.0
41,100.
1,093. 42
,193.
3,200.
45,393.
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 Approved For Releas*200
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Cost Recap
2.0
158 basic
$42,193.
w/ISC
$45,393.
1.0
155 basic
33 958.
w/3830's
39,372.
+
($6,021.)
1.5
155 basic
$41,688.
w/ISC
$47,102.
1.5
158 basic
39 593.
w/3830's
42,793.
,309.
($1,712.)
tT
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date 1 2 -DU.