Skip to Main Content
Learning DCOM
book

Learning DCOM

by Thuan L. Thai
April 1999
Intermediate to advanced content levelIntermediate to advanced
502 pages
15h 5m
English
O'Reilly Media, Inc.
Content preview from Learning DCOM

Distributed Computing Using RPC

In a three-tier environment such as the one shown in Figure 1-4, software developers distributed responsibility among each participant. They took away some intelligence from the clients, in a way that clients would act only as a front-end. In other words, clients were responsible for simply displaying, capturing, and validating user data. From this, a new terminology came into existence. The term “thin client” was used to represent the first tier in a three-tier system. PCs that ran these clients did not need to be high-end. These first-tier clients would communicate with the middle-tier servers via a remoting standard, remote procedure calls (RPC), to be discussed in a moment.

Three-tier technology

Figure 1-4. Three-tier technology

The middle tier was a server tier that supported complex business processing (e.g., calculate expense and calculate factorials) for its clients. Most of the performance problems found on the client end in the client/server scenario had now been relocated to this second tier. Therefore, the middle tier had to be powerful and smart. It had to be a high-end computer, running operating systems such as Windows NT or Solaris, with multiple CPUs to take advantage of symmetric multiprocessing. These middle-tier servers would communicate with the back-end third tier, again using the RPC standard.[1] The third-tier, back-end servers managed persistent business ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Windows Internals, Fifth Edition

Windows Internals, Fifth Edition

David A. Solomon Mark E. Russinovich and Alex Ionescu
Windows® via C/C++, 5th Edition

Windows® via C/C++, 5th Edition

Jeffrey Richter, Christophe Nasarre
Learning Go

Learning Go

Jon Bodner

Publisher Resources

ISBN: 9781449307011Supplemental ContentErrata Page