Page 1: ...aid for the more experienced programmer and operator It is condensed from the IBM RAMAC 305 Reference Manual Form No A26 3502 Reference should be made to that manual when more complete information is...
Page 2: ...not exceed 11 Maximum number digits in multiplicand cannot exceed 9 Maximum number digits in product cannot exceed 20 Product is developed in accumulators 0 and 1 Location of Product Units position of...
Page 3: ...des 30 ms for positioning dividend plus 30 ms for loading divisor 100 20 n 1 time in milliseconds n number of quotient digits 4 IBM RAMAC 305 OPERATING SPEEDS 370 Printer Output 80 positions 60 positi...
Page 4: ...ple should then be followed across to the character repre sented which in this case is the letter F Test Lock On 1st to Q From J 2nd On Q 3rd IWrite I From Q To TesT Lock Off 1st B To Q From J 2nd 8 P...
Page 5: ...press the desired Format key 6 IBM RAMAC 305 4 When the program reaches the step which tests the In quiry IN hub the Inquiry light will turn on and the program will stop The Cycle lights will show con...
Page 6: ...y be resumed by depress ing the Check Reset key setting the program selector switches to the next program step depressing Program Set and then Program Start METHOD 2 1 The Test Lock should be off 2 Th...
Page 7: ...over again Clock Error Stop Console Indication I Processing Stops Red Stop light on 2 CLOCK light on Cause Some phase of machine timing is out of step Restart Procedure 1 Make a note of the program st...
Page 8: ...put track to the printer 2 The print stick may not have been set up properly Restart Procedure 1 A Stop and Stop Depress Printer Check Reset key a Try printing the line again by depressing the Print R...
Page 9: ...y be the dam aged card The last punched card will be repunched because the information concerning this card is retained on the output track 4 Replace the cards in the hopper If necessary a gang punch...
Page 10: ...where the access arm Control Panel Summary has completed its use of the record If the arm is about to be moved by the program no harm will be done if the operator moves the access arm to some other re...
Page 11: ...0 0 0 0 0 0 0 0 0 o f o 0 o o 0 2 0 o o YES 0 I 2 3 4 5 6 Q 0 0 0 0 0 0 0 0 0 0 o o 0 1 0 o o o l o o l o o I o I 2 3 4 5 6 7 8 9 10 II 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32...
Page 12: ...up by changing the settings of the switches On the control panel these switches are wired in a manner similar to selectors Program exit impulses wired into the IN hubs emerge from the N normal hub of...
Page 13: ...wired to initiate functions such as zero suppression X elimination etc 14 IBM RAMAC 305 2 Distributors Impulses that are used to initiate several functions are wired through distributors that serve t...
Page 14: ...2 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 AN 0 0 0 0 0 3 0 0 0 0 l 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 AP 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 r 0 0 0 0 4 0 0 0 0 0 0 0 0 0...
Page 15: ...Will accept only line space 1 2 or 3 Wire from any print control exit Wire from ACI or print position exit only Wire from any print position exit Wire from any print control exit Wire from any print...
Page 16: ...t portion of the character being set up to be printed 17 NX Eliminate These hubs are impulsed from the Print Control Exits to allow only the sign portion of a character to be printed item 16 18 Ll Del...
Page 17: ...back into the following card 8 DP BC Det Entry These hubs may be wired from the punch brushes to check individual columns for double punching or lack of punching This is particularly valuable in nume...
Page 18: ...XIT pickup Improper operation will result if a program exit is wired to any other selector pickup When the P EXIT pickup is impulsed the selector will transfer immediately and will remain transferred...
Page 19: ...0 8 0 X 1 40 AA I 40 W 1 40 Z I 4O AH 44 H 31 40 G 31 40 AC AD 41 44 Q Z 41 44 Co Selector Transferred Digit Selector Common S 41 44 V 1 40 Y 1 40 AG 44 AK 41 AK 44 AJ 44 Pilot Selector PU Delay AS 3...
Page 20: ...n vertical column alignment 7 100 Type 100 Impulsing these hubs causes all 100 char acters to be typed from the typewriter track in position sequence without format control 8 Format These hubs emit co...
Page 21: ...F hub is impulsed item 23 or when a character other than zero is read from the track This arrangement allows the zeros in the high order position of fields to be suppressed Zero Suppression On is impu...
Page 22: ...utor exit is not overloaded CONTROL PANEL LOAD Print Space ENTRY HUB RATING Print Start 2 323 Print Stop 12 Skip to Hubs 3 BC Det Control 2 Symbols 12 BC Det Entry 2 X Eliminate 2 Column Splits 0 Zero...
Page 23: ...lldIDdktr International Business Machines Corporation Data Processing Division 112 East Post Road White Plains New York Printed in U S A G26 3540 0...
