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NPP Computer Basics and Windows Fundamentals 61

Traffic Cams: These are the webcams used Q´>m{\$H$ H¡$_: BZH$m Cn`moJ Q´>m{\$H$ {Z`§ÌU hoVw
to monitor traffic. hmoVm h¡Ÿ&
Metro Cams: These are the webcams used _oQ´>mo H¡$_: EH$ {gQ>r H$m Ñí` àXmZ H$aZo hoVw
to provide view of the city.
hmoVm h¡Ÿ&
Weather Cams: These are used to monitor doXa H¡$_: _m¡g_ H$m AÜ``Z H$aZo hoVw Bg H¡$_ao
weather. H$m Cn`moJ hmoVm h¡Ÿ&
Volcano Cams: Used to monitor Volcanoes. dm°ëHo$Zmo H¡$_: Ádmcm_wIr Ho$ AÜ``Z hoVw BgH$m

Cn`moJ hmoVm h¡Ÿ&
Each webcam needs necessary software for àË`oH$ do~H¡$_ H$mo H$m`© H$aZo hoVw gm°âQ>do`a H$s
its operation. It provides following facility Amdí`H$Vm hmoVr h¡Ÿ& EH$ do~-H¡$_ _| {ZåZ gw{dYmE§ hmo
depending upon its feature:
gH$Vr h§¡:
1. Images can be viewed. 1. B_oO XoIZmŸ&
2. Capture still images. 2. pñWa Vñdra| coZmŸ&
3. Capture video. 3. {d[S>`mo eyqQ>J H$aZmŸ&
4. Save Captured file locally. 4. H¡$ßMa \$mBc H$mo god H$aZmŸ&
5. Upload Captured file to Internet server. 5. H¡$ßMa \$mBc H$mo gd©a na AncmoS> H$aZmŸ&
6. Privately email the files to desired email 6. BZ \$mBcm| H$mo B©-_oc H$aZmŸ&
account.
7. Time stamping images. 7. B_oO na {XZm§H$ d g_` S>mcZmŸ&
8. Automatic erasure of old files. 8. nwamZr \$mBcm| H$mo ñdV: hQ>mZmŸ&

Fig. 1.13: Webcam
Webcam includes a lens, an image sensor EH$ do~H¡$_ _| EH$ coÝg g|ga d BcoŠQ´>m°{ZH$ n[anW
and supporting electronics circuit. A plastic lens hmoVm h¡Ÿ& EH$ ßcmpñQ>H$ H$m c|g H$m\$s à{gÕ h¡ {OgH$mo
is common that can be moved to set focus.
Fixed focus lenses are also available. BYa-CYa {hcmH$a \$moH$g goQ> {H$`m Om gH$Vm h¡Ÿ&
pñWa \$moH$g dmco co§g ^r CncãY h¡§Ÿ&