numerous different applications and markets, and there will be many
different hardware and software implementations, which is why it is
essential for NCs to conform to the Network Computer Profile (see
Some of the general areas which the areas of Network Computers can
home NCs, typically with lower bandwidth, intermittent, network
access and with a TV as a display device.
* corporate NCs, typically higher bandwidth (eg Ethernet) network
access, with better display devices, more like a traditional PC.
* set top box NC, used to access digital or cable TV, normally with
* dumb terminals, not really NCs as they just display the output of
programs run on servers, however some NCs also support this method
of operation for backwards compatibility.
* PC NCs, normal computers which are running software which conforms
to the same open standards as Network Computers.
* Mobile NCs, devices such as palmtops, laptops, and PDAs, which
which can be used as NCs when connected to a network but will also
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There are two main types of networks:
1. Server client network: This is a network where there is one central point in a network that supplies the network resources, this point has administrator privliges in the network and controls the whole network.
2. Peer to peer network : In this network all network resources are evenly shared , between all the users. All users in the network have the same amount of adminastrative privlages.
LAN and WAN were the original categories of area networks, while the others have gradually emerged over many years of technology evolution.
WAN - Wide Area Network (e.g. The WWW)
LAN - Local Area Network (e.g. school / work place network)
local area net work(LAN),wide area network,(WAN), metropolitan area network (MAN), and storage area network (SAN).