UNIVAC 1101 MANUFACTURER Universal Automatic Scientific Computer ~101 Remington Rand Univac Division Sperry-Rand Corporation Photo by Georgia Institute of Technology Engineering Experiment Station, Rich Electronic Computer Center APPLICATIONS STORAGE Georgia Tech Media Words Access Microsec Gommercial and scientific data processing. F.ducation Magnetic Drum 16,384 32 - 17,000 and research in all fields of engineering and science. Magnetic Core 4,096 10 Provides research assistance to commercial and indus­ Georgia Tech trial sponsors. A modified 1103A Magnetic Core System has been in­ stalled on the 1101. The computer has a 24 binary PROGRAMMING AND NUMERICAL SYSTEM digit word which is transferred and operated on in a Internal number system Binary parallel mode. Binary digits/word 24 Binary digits/instruction 24 Instructions per word 1 INPUT Instructions decoded 48 Medium Instructions used 43 Paper Tape (35 words, 140 frames, 14 in)/sec Arithmetic system Fixed point Instruction type One address OUTPUT Number range 1_223 to 223_ 1 Media Speed Negative numbers used are in the ones complement r Paper Tape (Teletype) arithmetic. +5 00000005 and -5 TIm(72 octal. 60 char/sec = = Typewriter (Flexowriter) 10 cha:r/sec ARITHMETIC UNIT CIRCUtT ELEMENTS OF ENTIRE SYSTEM Exclud Stor Access Tubes MiCI'osec 2,695 (18 types) Diodes 2,385 Add time 5 Mult time ::!60 Diy time 324 Construction Vacuum tubes CHECKI NG FEATURES Basic pulse repetition rate 400 Kc/sec Improper command stops the machine. Arithmetic mode Parallel Timing Asynchronous PRODUCTION RECORD Operation Sequential Total number of Univac 1100 Series (all models) deliv­ ered is 45. UNIVAO 1101 900 Photo by Georgia Institute of Technology Engineering Experiment Station, Rich Electronic Computer Center Operation tends toward open shop. POWER, SPACE, WEIGHT, AND SITE. PREPARATION Technician training is conducted at scheduled times Power, computer 16 KVA 0.95 pf and programming courses are offered in the Mathematics Power, air conditioner 1.2 KVA (Gas operated) Space, computer 2,880 cu ft, 360 sq ft DepartR£YlAB IlITY, OPERATI NG EXPERI ENeE. Space, air conditioner 384 cu ft, 48 sq ft AND T ME AVAILABILITY Room size, computer 720 sq ft Average error-free running period 5.6 Hours Room size, air conditioner 192 sq ft Good time 34.5 Hours/Week (Average) Floor loading 44 lbs/sq ft Attempted to run time 38.0 Hours/Week (Average) Capacity, air conditioner 5 Tons Operating ratio (Good/Attempted to run time) 0.80 Weight, computer 16,000 lbs Above figures based on period 1 May 60 to 1 Aug 60 Weight, air conditioner 1,500 lbs Passed Customer Acceptance Test Aug 55 False floor (plenum for A.C.). Separate room for Time is available for rent to outside organizations. M.G. and A.C. Distribution duct from A.C. to computer. Rental is $75.00 per hour (including operator). ADDITIONAL FEATURES AND REMARKS COST, PRICE AND RENTAL RATES Outstanding features include a large library of sub­ Machine donated to Georgia Institute of Technology routines, including fixed point, floating point, (evaluated at $500,000). function evaluation, etc., and stop address interrupt Magnetic Core System $39,000 feature. Bull Equipment 4,000 (approx) Maintenance performed by Georgia Tech staff. FUTURE PLANS PER SONNEl REQU I REMENTS The addition of index registers and floating point One 8-Hour Shift hardware is being considered and modifications are in Used Recommended progress to add punch card input-output with the Bull Supervisors 1 1 Controlled Reproducer with independent input and out­ Analysts 2 2 put buffers. Programmers, Coders 4 6 INSTALLATIONS Librarians 1 1 Georgia Institute of Technology Operators 1 1 Engineering Experimental Station Engineers 1 1 Rich Electronic Computing Center Technicians 2 2 Atlanta, Georgia 901 UNIVAC 1101 UNIVAC 1102 MANUF ACTU RER Universal Automatic Scientific Computer 1102 Sperry Rand Corporation Remington Rand Univac Division Photo by Arnold Engineering Development Center, ARDC, Tullahoma, Tennessee APPLICATIONS ARITHMETIC UNIT Arnold Engineering Development Center Exclud Stor Access Data reduction in Wind Tunnel and Engine Test Facil­ Microsec ities. Three computers are used on-line during wind­ Add time 17 max. tunnel and aerodynamic testing. Mult time 264 max. Div time 340 max. Construction Vacuum tubes PROGRAMMING AND NUMERICAL SYSTEM Rapid access word registers I Internal number system Binary Basic pulse repetition rate 500 Kc/sec Binary digits per word 24 Arithmetic mode Parallel Binary digits/instruction 24 Instructions per word I STORAGE Instructions decoded Depends upon program Octal digits/instruction not decoded 8 Media Words Access Microsec Arithmetic system Left circular shift Magnetic Drum 8,192 8,500 max. Instruction type One address Number range Accumulator holds 48 binary digits INPUT Media Speed Tape Reader 200 lines/sec Raw Data Scanner Scans 252 channels in 12.5 sec or 20/sec. The raw data scanner is connected to transducers measuring test data. UNIVAC ll02 902 RELIAB IlITY, OPERATI NG EXPER I ENCE, OUTPUT AND TIME AVAILABILITY Media Speed Arnold Engineering Development Center Automatic Typewriter 10 char/sec The following performance figures are given for the Automatic Plotter three computers for the period January through Sep­ tember 1956. The last of the three computers was accepted on 1 March 1956. Each column is for a CIRCUtT ELEMENTS OF ENTIRE SYSTEM separate engineering facility at the Arnold Engineer­ Tubes 2,700 ing Development Center. Diodes 3,000 ETF WI' G))F Magnetic elements 700 relays Manned Time 57.0% 25.6% 30.1% Number of separate cabinets 3 Utilization 51.4% 20.3% 24.8% Number of different kinds of plug-in units 47 Computer Efficiency 87.5% 89.3% 84.4% Reliability 96.8% 99.310 97.9% Scheduled Maintenance 9.5% 10.0% 13.9% Unscheduled Maintenance 3.0% 0.7% 1.7% CHECKI NG FEATURES Maintenance Factor 0.331 0.301 0.388 Accumulator overflow indicator "Oversize quotient" check Terms and Definitions of Computer Performance Improper operation code check o - Operational Time - Productive computer hours used Address check on tape loading in data reduction, engineering problems, program checking, or other productive computations. It does not include hours used in running of check problems for maintenance purposes. POWER, SPACE,. WEIGHT. AND SITE. PREPARATION I - Idle Time - Computer hours during which the com­ Power, computer 22 Kw puter is manned and in condition for productive opera­ tion but not in use for such purposes. Volume, computer 772 cu n Area, computer 122 sq n U - Unused and Unmanned Time - Hours during which Weight, computer 14,000 lbs personnel are not scheduled for computer operation. Power, air conditioner 9 Kw C - Marginal Checking - Daily routine testing prior Volume, air conditioner 80 cu n to operation to determine that the computer is in Area, air conditioner 12 sq n operable condition. Weight, air conditioner 3,000 lbs P - Preventive Maintenance - Computer hours used for Capacity, air conditioner 25 Tons testing of the computer to improve its performance and which does not detract from scheduled operation­ al time. PRODUCTION RECORD R - Unscheduled Maintenance - Hours consumed in re­ Number produced 3 storing the computer to operating condition wheh Number in current operation 3 failure occurs. C.M. - Concurrent Maintenance - Hours spent in repair and testing of computer components which does not consume computer time. COST, PRICE AND RENTAL RATES E.M. - Engineering Modifications - Computer hours Three computing systems were developed and manufac­ used in accomplishing engineering modifications to tured under contract. Total cost was approximately the computer and its circuitry. $1,400,000. T - Total Time = 0 + I + U + C + P + R + E.M. On a daily basis Total Time is twenty-four hours. PER SONNEl REQU I REMENTS Manned Time 100 (T-U)/T Daily Operation No. of Eng. No. of Tech. Utilization One 8 Hour Shift 5 2 Above totals are for one computer. 100 (O+E.M.)/(O+I+U+E.M.) Computer Efficiency 100 (O+I+E.M.)/(T-U) Reliability 100 (O+I+E.M. )/(O+I+R+E.M.) Scheduled Maintenance 100 (C+P)/(T-U) Unscheduled Maintenance 100 R/(T-U) Maintenance Factor (C+P+C.M.+R)/T-U+C.M.) 903 UlfIVAC 1102 U N I V A C I I 0 3 I I 03 A MANUFACTURER Universal Automatic Computer Model 1103 - 1103A Remington Rand Univac Division Sperry Rand Corporation Photo by Lockheed Aircraft Corporation APPLICATIONS systems, e.g. gyro error coefficients, vibration Manufacturer analysis, acceleration and velocity translation to Scientific computation. tangent plane coordinates, satellite orbit calcula­ White Sands Missile Range tions, and missile performance analysis. Systems Integrated Range Mission-DRD, N. M. are integrated into the Real Time Data Assimilator. Located in Building 1512, White Sands Missile Range, Digital Computation Branch (WWDCD) WADD, W-P AFB the primary use of the ERA 1103A, is for computations Located in Building 57, WADD, W-P AFB, Ohio, the sys­ incident to conversion of range flight test data to tem is used in the solution of scientific and other engineering formats and computations of problems R&D problems, in conducting research in numerical associated with flight simulation and a small amount analYSis and digital computer programming techniques. of general purpose computing for range custcmers. National Aeronautics & Space Administration, 3208th Test Gp (TF), APGC (roVMC) Lewis Research Center Eglin AFB, Florida Located at the NASA-Lewis Research Center, 21000 Located in Building 625, Eglin AFB, Florida, the Brookpark Road, Cleveland 35, OhiO, the system is used l103A is used for impact predictions (real time), for reduction of experimental data from wind tunnels, slew testing of radars and ballistics. test stands, rocket stands, etc., engineering and Air Force Missile Development Center scientific analysis-type problems. Holloman AFB, New Mexico Experimental data is recorded on automatic recorders Both systems are used for reduction of data obtained of our own design.