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3742
Reference manual
IBM 3742 Reference Manual
Data entry system; data station; dual data station
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Contents
Table of Contents
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Table of Contents
Table of Contents
Chapter 1. Ibm 3740 Data Entry System
System Overview
IBM 3741 Data Station and IBM 3742 Dual Data Station Overview
Chapter 2. IBM Diskette
Disk Layout
Index Track Layout
Index Track Data Set Labels
Chapter 3. Data Station Operating Information
Buffers
Modes of Operation
Enter Mode (E)
Update Mode (U)
Verify Mode (V)
Modulus
Field Correct Mode (C)
Search Mode (S)
Read Index Mode (X)
Modify Mode (M)
Field Totals Mode (F)
Starting Information
Record Advance Operation
Deleted Records
Mode Considerations for Deleted Records
CE Mode
Chapter 4. Operator Interface
Display
Keyboard
Switches
Function Select Keys
Character Keys
Function Keys
Chapter 5. Programming Information
Program Coding
Loading a Program
Selecting a Program
Displaying a Program
Modifying a Program
Program Chaining
Operator Guidance
Chapter 6. Production Statistics
Counters
Keystroke Counter
Record Counter
Verify Correction Keystroke Counter
Displaying Production Statistics
Chapter 7. Field Totals
Online Field Totals
Displaying Field Totals
Read Out/Reset Fields
Online Field Total Restrictions
Example
Offline Field Totals
Selecting Offline Field Totals
Mask Statements
Displaying Offline Field Total Accumulators
Writing Field Totals into Record on Disks
Example
Chapter 8. Second Disk
Dual Disk Preparation on 3742
Dual Disk Operation on the 3741 and 3742
Search Operations on the Second Disk
Copy
Copy All or Part of Disk 2
Copy All or Part of a Data Set
Copy up to a Specified Record on Disk 2
Handling Disk Errors that Occur While Copying All or Part of Disk
Chapter 9. Disk Initialization
Initialization Procedure
Disk Checking
Chapter 10. Self-Check Feature
Computing the Self-Check Digit
Modulus 10
Chapter 11. Communigations
Teleprocessing Bibliography
Programming Support
Networks
Communications Facilities
Communications Throughput
3741 Transmission Modes
Features
Synchronous Clock Feature
Terminal Identification Feature
Operator Identification Card Reader Feature
Keylock Feature
Operating Procedures
Communication Modes
Transmit Mode (T)
Transmit-Transparent Mode (P)
Receive Mode (R)
Transmit/Receive Mode (B)
Transmit-Transparent/Receive Mode (D)
Communications Example
Line Termination and Error Conditions
Termination of Data Call
BSCA Error Conditions and Indications
BSCA Disk Errors
Track and Sector Indicators
Status Message Format
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Ibm 3741 Data Station and Ibm 3742 Dual Data Station Overview
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Systems
GA21-9151-0
IBM 3740 Data Entry System
IBM 3741 Data Station
IBM 3742 Dual Data Station
Reference Manual
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This manual is also suitable for:
3740
3741
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