Browsing by Author "Choudhury, Subhajit"

Now showing 1 - 3 of 3
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    From Cabling to Decabling the Libraries in Emerging WLAN Standards
    (INFLIBNET Centre, Ahmedabad, 2004-02) Choudhury, Subhajit; Kumar, Divik; Kumar, S
    Introduces need for WLAN due to cabling faults and costly management of cables. WLAN use Infrared and Radio Frequency technologies. Gives benefits of WLAN. Gives an account of Data Transmission in WLAN and use of 2.4 GHz for WLAN allotted for International Radio Frequency Allocation. Gives brief account of two RF technologies-Spread Spectrum and low power Narrow Band used in various RF technologies. Gives in brief an account of IrDA, Bluetooth, Wi-Fi, UWB, HomeRF, SWAP and Zigbee technologies presently in use for WLAN. Study kept an eye for various IR/RF based notebooks and computer peripherals available in India and US market provides salient features and price of these. Concludes with benefits of WLAN and library applications by undoing of what has been done in last few decades-laying cables in LAN. Provides eight references and 05 websites for further study.
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    Spam : A Threat to Network Security in Digital Library and Information Centres
    (INFLIBNET Centre, 2005-11-10) Choudhury, Subhajit; Dey, Biswanath; Kumar, S.
    The paper introduces with a brief history of spam. Defines the term spam as Electronic junk mail or junk newsgroup postings. The trick of spam operators. Enlightens with some tips of Spam handling. It also describes various tools of spam and a through investigation of spam filtering, its importance, and available software that can help for spam filtering and information security in an information system. Lastly, the importance of anti-spam filtering to libraries and information centres have been discussed. Concludes with suggestion for using anti-spam software.
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    Wi-Fi and HOTSPOTS:Emerging WLAN Technology in Indian Context
    (INFLIBNET Centre, Ahmedabad, 2004-02) Kumar, S; Choudhury, Subhajit; Shah, Leena
    Paper introduces with brief account of advantages of wirefree LAN technology. Discusses technologies of data transmission-infrared and radio waves technologies in WLANs for data transmission. Discusses 802.11a,b and g technologies in brief. It gives an idea of planning with Wi-Fi. Gives an account of common standards of Wi-Fi technology. The cost involvement of Wi-Fi is also given for consideration. The brief discussions on Wi-Fi applications Hot-Spots. Gives Hotspots in India and abroad and its applications in the Library and Information centers. Suggests for easy licensing, fee free and cheaper technology for Library and Information Centres. Includes seven references and six websites.