What is RPG, Lansa?

The RPG or RPG/400 programming language is designed to make it easier for AS400 programmer to create business software applications in AS400 environment.

LANSA is web based development tool for AS400 or AS400e environment.

You could visit www.ibm.com to find out more detail about RPG and LANSA. Just type the RPG or LANSA, the search machine will bring you there.
 

RPG comes in a few flavours - RPG400, RPG4, and RPGLE.
Most folks tend to develop in RPG4/LE these days, as the support for older RPG400 is lacking, and RPG4/LE is far easier to understand.
LANSA gives the 'Russian TV' appearance of RPG programs a GUI interface, and it looks a hell of a lot better!

LANSA however has also been around for a fairly long time and started its life as a 4GL Tool. on the S38. RPG also started out as a Report Generating Tool. Its earliest incarnations use a thing called the RPG cycle (Essentially basic report writing is read a record, print a record, read a record, print a record, ..... et al) and so RPG (Report Program Generator) used a cycle so that its users would not have to bother with the reading/writing elements but just define the input and output. This was fine for early machine but when the S3X units (predecessors to AS/400) came along that supported displays it needed to evolve. the latest implementation RPGLE has evolved to make better use of modularised code.

Thanks for all these answers!

WHo gets the points then?

Hy!
you gave me many tehnical information but I am not familiar with any of them (4GL, S38, S3X)...I don't have a background in AS400 ...

I need some extra information:
what prog. language is RPG familiar with?
can I find an online  RPG introductory course?

Sorry Ommitted Web Site address for ATS RPG Course :-

http://800ibmuser.com/train/dsfolder/arp1ds.htm

Many Thanks P_S_Price!
For me this was an excellent answer...

Bye!

The information I got was really cool.
Thanks to P_S_Price!