Page 28 - DCAP403_Operating System

Unit 2: Operation and Function of Operating System

Figure 2.4: Diagrammatic Structure of Multiprocessor System Notes

PC platform

Memory System interconnect Processors
Multiprocessor chip
sets Intel IA-32 and IA-64
DDR
(Intel, AMD, VIA,
ServerWorks)
AMD Athlon

Multiprocessor
RAMBUS switch fabrics
(Sun, Unisys) Sun Ultra Sparc

System Bus

AMD Hyper
PCI/PCI-X InfiniBand
Transport

Peripheral Bus

USB 2 IEEE 1394 IDE SCSI Serial ATA Fibre Channel

Task Distinguish between multiprocessing and multitasking OS.

Networking Operating System

A networked computing system is a collection of physical interconnected computers. The
operating system of each of the interconnected computers must contain, in addition to its own
stand-alone functionality, provisions for handing communication these additions do not change
the essential structure of the operating systems.

Distributed Operating System

A distributed computing system consists of a number of computers that are connected and
managed so that they automatically share the job processing load among the constituent

computers, or separate the job load as appropriate particularly configured processors. Such a
system requires an operating system which, in addition to the typical stand-alone functionality,
provides coordination of the operations and information flow among the component computers.

The networked and distributed computing environments and their respective operating systems
are designed with more complex functional capabilities. In a network operating system, the users
are aware of the existence of multiple computers, and can log in to remote machines and copy

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