I nedd SAP history, SAP R/2 , 2 represents what

[Former Member]

hi

Need the SAP history. what is SAP R/2, 2 represents what, can any one explain in detail.

[Former Member]

Hi

@ means 2 tier architecture of the R2 system

that time no APPLICATION server in that system

ONLY client and SErver will be there

that time it is mainly used/run in MAIN FRAMES

after that 3 tier system came

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Regards

Anji

[Former Member]

R - tier ...

sap R/2 Means <b> 2 tier </b> Architecture .... earlier sap was started with 2 tier ..

1 is database and 2 is presentation layer (it is mixture of Application & presentation layers ) .... later

SAP R/3 it mean <b>3 tier </b> Architecture which has

<b>1</b> is <b>database layer</b> your oracle or sun solaris or SQL...etc

<b>2</b> is <b>application layer</b> Your SAP derive where all workprocess are there and execute's all program ,transcationcode ....etc .

<b>3</b> is <b>presentation layer</b> where the user see all the screen ..

for any <b>user and abap </b> only the presentation layer is visisble .

for basis only all 3 layers are visible .

reward points if it is usefull ...

Girish