Distributed user applications
User applications usually consist of executable programs
(binaries and scripts), support files (such as error message
and language libraries), and data storage files or directories.
Stand-alone applications operate on a single computer, with
the binaries executing on the local CPU and on libraries
and application data stored on the local hard disk.
Network applications, on the other hand, make use of the
filesharing and file-copying capabilities of the network to:
In most cases, the user is unaware that the program or data access is
over the network.
Distribute the system load from a server machine to users' desktop
machines. For example, a database application may be exported via an
NFS-mounted filesystem from a database server to a user's desktop
machine. When the user runs the database program, his or her CPU
does the processing. This allows for central maintenance of the database
program and for efficient sharing of CPU resources.
Create easily manageable data servers. For example, a calendar program may
run on the local filesystem on many users' desktop machines, while the actual
calendar data exists on a calendar server. The data is served to
users as requested over TCP/IP. This allows for centralized maintenance
of large user databases.
The key enabling technologies for distributed user applications are
network protocol stacks
such as NFS and SCO Gateway for NetWare filesystems.
Your SCO OpenServer system provides these applications, which can
be configured to operate locally or, with the Desktop
or Enterprise systems, over the network:
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003