Using

the

OS/400 System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*

------------------------------------------------------------------------

 

 

 

 

 

 

 

 

*

 

 

 

 

* Subprocedure

-- calculates overtime pay.

*

 

 

 

 

*

------------------------------------------------------------------------

 

 

 

 

 

 

 

 

*

 

 

 

 

P CalcPay

 

 

B

 

 

 

 

 

 

 

 

 

 

D CalcPay

 

 

PI

 

 

8P

2

 

 

 

 

 

 

D

Rate

 

 

 

 

 

5P

2

VALUE

 

 

 

 

 

D

Hours

 

 

 

 

 

10U

0

VALUE

 

 

 

 

 

D

Bonus

 

 

 

 

 

5P

2

VALUE

 

 

 

 

 

D Overtime

 

 

S

 

 

5P

2

INZ(0)

 

 

 

 

 

* Determine any overtime hours to be

paid.

 

 

 

 

 

C

 

 

 

 

IF

 

Hours >

40

 

 

 

 

 

C

 

 

 

 

EVAL

Overtime = (Hours - 40) * Rate * 1.5

 

 

 

 

 

C

 

 

 

 

EVAL

Hours =

40

 

 

 

 

 

C

 

 

 

 

ENDIF

 

 

 

 

 

 

 

 

 

* Calculate the total pay and return

it to the caller

 

 

 

 

 

C

 

 

 

 

RETURN

Rate * Hours + Bonus + Overtime

 

 

 

 

 

P CalcPay

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure

4

(Part

3

of 3).

A Sample Payroll Calculation Program

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using

the

OS/400 System

 

 

 

 

 

 

 

 

 

 

 

 

 

The

operating

 

system that controls all of your interactions with the AS/

 

 

 

is

called

the

Operating

System/400 (OS/400) system.

From your workstation,

 

 

 

OS/400

system

allows

you

 

to:

 

 

 

 

 

 

¹

Sign

on

and

 

sign

off

 

 

 

 

 

 

¹ Interact with the displays

 

¹

Use

the

online help

information

 

 

¹

Enter

control

commands

and procedures

 

 

¹

Respond to

 

messages

 

 

 

 

 

¹

Manage files

 

 

 

 

 

 

 

¹

Run

utilities and

programs.

 

 

If

you

have

internet

access,

you can

obtain a complete list of pub

discuss

the

OS/400

system

at the following URL:

http://publib.boulder.ibm.com/

 

 

 

 

You

can

also

 

orderAS/400 theV4

System

Library

,PosterG325-6334-02.

Interacting with the System

You can manipulate the OS/400 system using Command Language (CL). You interact with the system by entering or selecting CL commands. The AS/40 system often displays a series of CL commands or command parameters ap priate to the situation on the screen. You then select the desired parameters.

Commonly Used Control Language Commands

The following table lists some of the most commonly used CL commands, the function, and the reasons you might want to use them.

12 ILE RPG for AS/400 Programmer's Guide

Page 35 Page 37
Page 36
Image 36
IBM AS/400 manual Interacting with the System, OS/400 System, System Library, Commonly Used Control Language Commands
Page 35 Page 37

AS/400 specifications

The IBM AS/400, now known as the IBM iSeries, is a midrange computer system that has been a cornerstone of enterprise computing since its introduction in 1988. Designed to provide a robust platform for business applications, the AS/400 is celebrated for its reliability, scalability, and integrated database capabilities.

One of the key features of the AS/400 is its Integrated Operating Environment, which blends hardware and software resources seamlessly. This integration allows businesses to execute diverse workloads, ranging from traditional applications to modern web-based services, all on a single platform. The operating system, OS/400 (now IBM i), offers a rich set of APIs and tools for developers, simplifying application development and management.

Another standout characteristic of the AS/400 is its built-in database, DB2 for i. This powerful relational database management system allows for efficient data handling and provides advanced features such as support for SQL, XML, and JSON, making it easier for businesses to manage their data and integrate it with other systems. The database's tight integration with the operating system enables high performance and security.

In terms of scalability, the AS/400 can accommodate small businesses as well as large enterprises, with the ability to support hundreds of users simultaneously. Its architecture allows for easy upgrades in hardware, meaning that organizations can scale their systems without replacing the entire infrastructure.

Security is another critical attribute of the AS/400. With a sophisticated security model, it offers built-in user authentication, access control, encryption, and auditing capabilities to protect data and applications from unauthorized access.

The AS/400 also supports multiple programming languages, including RPG, COBOL, Java, and PHP, giving organizations the flexibility to choose the development tools that best fit their needs. This diversity helps maintain legacy applications while also developing new ones that leverage modern technologies.

Moreover, the platform supports both traditional green-screen interfaces and modern graphical user interfaces, allowing organizations to transition smoothly into contemporary user experience paradigms.

Overall, the IBM AS/400 stands out as a resilient, flexible, and secure computing platform that enables organizations to effectively manage their business operations, streamline processes, and adapt to changing market demands. Its unique combination of integrated features and capabilities ensures that it remains relevant in today's fast-paced technology landscape.
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