Scientific Development Corporation Minivac 601 Getting Acquainted
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Scientific Development Corporation Minivac 601 Getting Acquainted

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Getting acquainted with
M
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S C IE N T IF IC
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D EV ELO P M EN T
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T i r S t S t e p
tow ard th e exciting world o f electronic
c o r p o r a t io n
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d ata processing via digital com puters

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Summary of Contents for Scientific Development Corporation Minivac 601

  • Page 1 Getting acquainted with S C IE N T IF IC D EV ELO P M EN T . . . 3 T i r S t S t e p tow ard th e exciting world o f electronic c o r p o r a t io n w—...
  • Page 2 I he M IN I V A C 601 computer and this book are used together to demonstrate the operation of digi+al computer components and to teach p rinciples basic to their use. As you become fa m ilia r w ith M IN IV A C 601 and understand its relationship to large digital computers, you w ill be performing the operations basic to a modern ele ctro n ic...

  • Page 3: Table Of Contents

    P A G ES I ) POW ER S U P P L Y ..................P R O G R A M M IN G W IR ES....................... Closed C ircuit' P rin c ip le ............Using the Programming W ire s..........Experiment 1: Use of Programming W ire s....
  • Page 4 The M ini vac Manual was prepared and edited by the staff of S c ie n tific Development Corporation First Printing— August, 1961 EX LIBRIS ccapitalia.net Copyright 1961 by S c ie n tific Development Corporation, 372 Main Street, W atertow n, Massachusetts...

  • Page 5: I ) Pow Er S U P P L Y

    POWER SU PPLY he power supply converts the 110-volt A C power obtained from a standard e le c tric outlet in your home to a safe working level of 12 volts D C . This low voltage DC is used to power M IN IV A C and is connected to a ll terminals + and - on the power p a n e l.

  • Page 6: Programming W Ires

    PROGRAMMING W IRES ^Programming wires of different lengths are provided to make e le ctrica l ( programming) connections between various terminals on M IN IV A C 601 . These wires establish closed e le c tric a l circ u its and route the current through one or more components to create a desired computer c ir c u it .

  • Page 7: Experiment 1: Use Of Programming W Ire S

    EXPERIMENT | OF PROGRAMMING WIRES his experim ent demonstrates the use of programming wires to make connections on M IN IV A C 601 . l y Take two programming w ire s. G rasp one end of the first w ire firm ly between your thumb and forefing er.

  • Page 8: 3Fc) L Ig H T S

    < id entical lights Iabeled "B in ary O utput" are used in M IN IV A C 601 to show what is happening in various parts of the computer. A light w ill come on when is connected in a closed c irc u it so rrent flows through the lig h t.

  • Page 9: Experiment 2: Single Light O P E Ra Tio N

    — I EXPERIMENT 2 SINGLE LIGHT OPERATION his experiment demonstrates the operation of a single binary output lig h t. Using two short programming w ire s, make the connections A and Turn the power switch O N (be sure the main power cord is plugged into a proper o u tle t).

  • Page 10: Pushbuttons

    PUSHBUTTONS he section of the computer panel labeled "B inary Input" contains six identical pushbuttons w hich are used by the operator to supply information to the computer. The pushbuttons may be used to tell the computer what to do, or to in dicate the value of input numbers. Pushbuttons may be used to control the other components of M IN IV A C 601 Each pushbutton is id entified by its section number on the computer p a n e l.

  • Page 11: Experiment 3: Pushbutton O P E Ra Tio N

    EXPERIMENT 3 PUSHBUTTON OPERATION I his experiment uses a light to demonstrate the operation of a pushbutton Both norm ally open and norm ally closed circu its are connected. jl x -*— The normally open pushbutton-light > ) circuit drawing looks like this: Program this circuit by making the following connections: 1+/1Y, 1)(/1A, 1-/1B Turn the power switch O N .
  • Page 12 EXPERIMENT 4 SERIES CIRCUIT I his experiment demonstrates the use of two pushbuttons connected together in series to form a c irc u it where both pushbuttons must be pushed at the same time before the c irc u it is closed. 0 Program this c irc u it by making the follow ing connections: 1+ /1Y...
  • Page 13 EXPERIMENT 5 ! PARALLEL CIRCUIT his experiment demonstrates the use of two pushbuttons connected together in p arallel to form a c irc u it where either pushbutton may be pushed to complete the c ir c u it . Program this c irc u it by making the follow ing connections: 1+/1Y...
  • Page 14 ^ ix identical relays labeled "storage-processing" are used by M IN IV A C 601 to store or "remember" and to process computer inform ation. Each re lay has two sets of contacts, sim ilar to the pushbutton co ntacts, w hich open and close together.
  • Page 15 EXPERIMENT £ MANUAL RELAY OPERATION m is experiment uses two lights to demonstrate the basic operation of a re la y sw itch . > Connect the contacts of re la y 1 to turn light 2 O N when the re lay is O F F , and to turn lig ht 1 O N when the re la y is O N .

  • Page 16: Electrical Operation Of The Relay

    Electrical Operation of the Relay covfO U n lik e the pushbutton w hich must be operated m an u ally, the re la y can be operated e le c t r ic a lly . Each re la y has a round w hite c o il, located to the le ft of the arms.

  • Page 17: Experiment 7: E Le C Tric A L Relay O P E Ra Tio N

    EXPERIMENT ELECTRICAL RELAY OPERATION ^ T h is experiment demonstrates the basic e le ctrica l operation of a r e la y . Additions to the "manual re la y operation" c irc u it of Experiment permit the re la y to be operated e le c tric a lly through a pushbutton.
  • Page 18 EXPERIMENT 8 RELAY CONTROLS ANOTHER ■ his experiment shows how a re la y may be used to control another r e la y . | ) The program for this c irc u it is: 14-/1V 1+/1H 2+/2H 1 V 1 C 1 G /2 C 2 G /2 A 1 F / l -...

  • Page 19: Experiment 9: A Relay Controls Its E Lf

    — I EXPERIMENT A RELAY CONTROLS ITSELF I his experiment demonstrates how a re lay may be used to control its own operation. The re la y is connected to remain O N when it The program for this c irc u it is: is turned O N , and to remain O FF when it is I F / turned O F F .

  • Page 20: S W It C H E S

    SLIDE SWITCHES $ i x id e n tica l slide switches labeled "Secondary Storage" are used by M IN IV A C 601 for manual storage of data and for other computer switching functions. Each switch has two sets of contacts w hich open and close together.

  • Page 21: Experiment 10: Slide Sw Itch O P E Ra Tio N

    EXPERIMENT / ' J k SLIDE SWITCH OPERATION his experiment demonstrates the operation of a slide switch controlling two lig hts. Program this c irc u it by making the follow ing connections: 1-/1B 2 -/2 B 1S/1+ 1V/1S 2 ) Move switch 1 to the LEFT and turn the power O N .
  • Page 22 § h e rotary sw itch , labeled "D ecim al Input-O utput, may be m anually rotated or motor d riv e n . Connected d ire c tly with the pointer knob there is a w iper arm underneath the computer p an el.

  • Page 23: R O T A R Y S W It C H

    EXPERIMENT II MANUAL OPERATION OF ROTARY SWITCH | his experiment demonstrates basic manual - • operation of the rotary sw itch . Connect the rotary switch to operate lights 5 and when the pointer knob points to numbers re sp e ctive ly. The program for this c irc u it is: 6+/D16 D1/5A...

  • Page 24: Motor D Riv E

    m o t o r d r iv e (corrf The rotary switch may be positioned either by hand or by the motor d riv e . A DC motor turns the rotary switch through a frictio n d riv e . rotary switch connections are made seq uentially whether the pointer is turned by hand or driven by the motor.

  • Page 25: Experiment 12: Basic Motor O P E Ratio N

    experim en t a s ic m o to r o p e r a t io n f his experiment demonstrates the basic motor drive operation. The c irc u it looks like th is: / I Connect the motor to operate with pushbutton 5 vJ/_ control using the follow ing program: -•--...

  • Page 26: Pulse Generator

    The particular connections which are made to accomplish a series of computer operations are called a "program." A ll digital computers, including MINIVAC 601 must be "programmed" to solve a specific problem. The use of the rotary switch for "programming"...

  • Page 27: M Atrix

    M ATRIX he m atrix provides convenient junction points for use when the computer plays games or recognizes symbols. The m atrix consists of a number of term inals, located in the upper right corne of the computer p an el. The term inals are used as junction points, and there are no connections to the term inals below the p an el.

  • Page 28: 0 ) L O O K In G A H Ea D W Ith M In Iv A C 6 0 1

    Book I - - "G ettin g Acquainted w ith M IN IV A C 601 " — has examined the operation of each M IN IV A C 601 component. The symbols and shorthand of c irc u it drawings have been introduced and basic computer programs were developed in the experim ents.

  • Page 29: Make Logical D Ecisions 26 Book Iv : How Computers Do A Rith M E Tic

    A d ig ital computer performs ad d itio n , subtraction, m u ltip lica tio n , d iv is io n , and other more com plex ca lcu latio n s in an arithm etic u n it. Some computers use D EC IM A L numbers, but most high-speed d ig ital machines do arithm etic w ith B IN A R Y numbers.

  • Page 30: Problem S Fo R M In Iv A C 6 0 1

    4 ) Continue with each part of the problem in turn, adding or changing connections to meet the new requirements. 3 ) From your completed drawing, program the solution on your MINIVAC 601. PROBLEMS 1 THROUGH 6 USE PUSHBUTTONS, LIGHTS for this problem.
  • Page 31 ANSWER. 1 ./ y 2+/2Y 1+/1Y 2 V 2 A 7 8 1 £ 8 . i < i V IA J l l + 2 - J 1 2B/2- 1 B/l - ANSWER 2 1Z/2X 1 B/l - 1V 2 Z ANSWER 3 —...
  • Page 32 ANSWER. 7 > y . 1-/1B 1X/2X JULSJUU l+ < 1A/1X 2Y/1C |£ I+/1Y 1F/2- • t l - ANSW ER 8 1-/1B < 1V1R 1+/1S © © 1S/IV l6< 1W/1C 1F/1- 2-/2 B 2A/1T 2-/2F 2C/1U ANSW ER 1+/1G 1G/1X 1Y/1H 1H/1C...
  • Page 33 ANSW ER 12 2 P. /~ 1J 2-/2B 2+/2Y 2A/1T 2Y/1 Y 1T/2R 1 V i c 2R/1J 1 F/l — 1J/2G 2 V 2 C 1+/1S 2F/2- Q Q -*JU U U U > - 1S/2S 2S/1 H 1H/2H •...
  • Page 34 ANSWER 17 6+/6J 6C/6L 6J/6K 6L/D18 6K/D6 6H/D17 6E/D16 6-/6N 6F/6- 6N/6G 6G/D1 ANSWER 18 P 1 7 6+/6Y P IS 6X/DU M-/D18 5Z/D18 5Y/DO P lfe P l 9 D16/D19 PJ.7 ANSWER 19 D1/1A 6+/6Y 1 — • -------------------- -• D ie •------ •->...
  • Page 36 M IN IV A C 601 A N D THE M IN IV A C M A N U A L ARE PRO D UCTS O F : C O R P O R A T IO N S C IE N T IF IC D EV ELO P M EN T 372 Main Street, W atertow n, Massachusetts...

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