introduction to the as/400 as/400 mid-range operating system
TRANSCRIPT
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Introduction to the AS/400
AS/400 Mid-Range Operating System
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AS/400 Market Niche
IBM Midrange computer that bridges the gap between Mainframes and PCs
Transaction Based Processor
Reliable
As powerful as a mainframe, but more cost effective
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Industry Examples(See http://cs.senecac.on.ca/~ops234)
Manufacturing
Distribution
Retail
Entertainment
Construction
Banking
Pharmaceutical
Telecom
Medical
Automotive
Education
Microsoft!!!
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AS/400 is:
»Multiuser
»Multitasking
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OS400
Operating System
Object-Based
Types of Objects include: User Profiles– Job Queues– Files– Programs
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Definitions
DOS/Unix Word AS/400 WordDirectory Library (all libraries at the same
level – no sub-libraries)File ObjectExecutable File Program ObjectDatabase File File ObjectSearch Path Library ListUser Account User ProfileVI Editor or NLED Source Entry Utility (SEU)Exit or ^D Signoff
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Data Storage Heirarchy
Library
ObjectsMembers contain data - Files only
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AS/400 Menu Driven
Create Library Command
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Type option 4
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Type Option 2
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Type Option 2
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Type in the Library Name
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IBM AS/400 Help
Menu Driven
Field Level
Extended Help
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Move the cursorto the Top Lineand Press F1
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Extended Help(Command Help)
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Move the cursorto a specific Fieldand Press F1
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Field LevelHelp
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Important Function Keys
Function Keys DescriptionF1 HelpF3 ExitF4 PromptF12 Cancel
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Function Keys Cont’d
To Access F13 Type Shift+F1
To Access F24 Type Shift +F12
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CL (Control Language)
• Language used to communicate with the AS/400
• English Based (Verbs & Nouns)
CRTLIB
LibraryCreate
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Data Representation on the AS/400
• EBCDIC!
• Main Data Types Used are :– Alphanumeric– Signed or Zoned Integers– Packed Data Decimals