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CHAPTER 5Types of Computer systems

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 Batch-processing system

Control System

Automated system

Interactive system

Network system

Computer Systems 

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• Processes a large amount of data as one

 job

•No operator intervention

• Produces output that is not time

dependent

Batch-processing system

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• Involves sensors and feedback loops

• Responds within specific time to bring

changes in conditions• Used in oil refineries, chemical plants,

and integrated traffic control

Control System

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• Includes sensors, actuators and a user

interface with limited scope for interaction.

• Used in washing machines, electric oven, etc

Automated system

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• Allows user(s) to interact directly with the

running programs to influence the course of

processing

• E.g. PC

Interactive system

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• Uses network operating systems to allow 2 or

more computers to share controlled access to

facilities such as file storage, servers and

peripheral devices (e.g. printers). – Types of network

» LAN  – local area network  – consists no. of

networked devices connected on a singlesite (e.g. office)

»  WAN – wide area network  – for

communications over great distances

Network system

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 –

 Network Topologies» BUS NETWORK

• Connectors are expensive

•

If central cable stops working, whole networkgoes down

• If new stations are added, the performance

decreases

Network system (contd…) 

• less cabling

required• less expensive

network

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»RING NETWORK• Faulty connection between two

stations can cause network

failure

• Difficult to add a new device

Network system (contd…) 

• works well

during heavy

traffic

• possible to

create large

networks

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