This article is presented by:Dr.Yatindra Nath Singh
Mobile Computing Networks



What is mobile computer?
• A computer which you can take with you all around.
• You can do all the things which can be done with a
desktop computer.
• You should be able to use same software, which you use
on a desktop computer.

Mobile computer - How?
• One possibility is to have a standalone computer capable of
• storing large amount of software and data files,
• processing power to support the required applications.
• Modern day laptop computer are something like this.

Whenever you are static, connect to internet through an
access point and you can do the file transfer, telnet, web
browsing etc..
• While on the move, connectivity is desired for using
software which require cooperation of at least two
machines.

Option for connectivity
• An easy option
• Use cellular mobile phone network to connect to some
Internet Service Provider and hence to internet.
• What you need - cellular phone/ corresponding modem.
• Not a good option for campus wide mobile network.
• dependent on the mobile telephone network operator
• cheaper wireless LAN options available
Other extreme of mobile computer
• Mobile computing device
• acts as a terminal
• have wireless connectivity to the network
• Whatever command or application you run is executed
on a remote server.
• Mobile computing device acts as remote terminal.
Advantages/ disadvantages of this extreme
• Very small, compact and light weight mobile computer
• Less power consumption and large battery life - this may
not be true, if radio communication requires more power
than to power up all necessary devices for a standalone
computer on average basis.

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