Friday, October 7, 2011

How WiFi Cameras Work

In this day and age, it may be a big deal to connect something, such as a camera, to your computer to transfer information.WiFi cameras, are aimed at solving cable clutter by making it possible to transfer photos wirelessly from a digital camera to a Web site or your computer. This means you can do things like e-mail photos of your trip while you're still on vacation, or get pictures directly off your camera and to an editor quickly if you're a photojournalist.
 These SD cards have a WiFi antennae built into them, which allows them to offer basically the same functions as a camera with built-in WiFi, but they lack the on-screen interface if a camera doesn't directly support it. With the Eye-Fi, you set up the card on your computer, then place it in the camera, where it automatically uploads photos to your computer or Web space anytime it detects a compatible WiFi network.
As with non-WiFi cameras, your choice of camera will be dependent on how you plan to use it. WiFi-enabled point-and-shoot cameras retail for a little bit more than their plug-and-play counterparts, 
The difference between WiFi cameras and Eye-Fi cards is straightforward: WiFi cameras are already built to use WiFi functions out of the box, whereas Eye-Fi cards are an extra memory card. Both require a brief setup process and offer the same basic functionality.
If you're worried the simplicity of having a WiFi camera comes at the cost of image quality, your concerns are well directed. Certain models, especially early ones, may upload files at lower resolutions than what is stored on the camera. The high-quality shots remain on the camera, so they can still be transferred through a wired connection when you have the chance. You won't have that problem with most newer models, though.
So, once you've got your WiFi-enabled camera in your hands, you'll need to set up basic features, automatic functions and the Web site or computer to which you plan to upload your pictures.

Thursday, October 6, 2011

How to Detect if Someone's Stealing Your WiFi


Okay, it's time to get down to it. Is your wireless network running slowly? Do you have intermittent losses in Internet access and you can't figure out why? Chances are, you've already detected a WiFi squatter and didn't even know it. If you regularly experience these problems, maybe you have something wrong with your wireless connection. But if you're suddenly having intermittent problems with your Internet performance, especially at the same time each day, it's a red flag that someone is piggybacking off your wireless connection and it's time for you to diagnose your WiFi network.
The first and simplest thing you can do is check out your wireless network connection and see if it's secure. When you install your router, you're given the option of setting a wireless encryption protocol (WEP) key. Basically this is a password-protected method for you to log on to your own wireless network. If you don't have one, you're operating an open network. That means anyone within range can use your wireless for free. While it's not hacking, it is debatable as to whether this is actually stealing. In any case, if you don't have a WEP key, you're vulnerable to WiFi squatting and certainly not deterring squatters.
Even if you have a WEP key, that doesn't necessarily mean your neighbor hasn't bypassed it. To determine if he or she is logging onto your wireless network, you can do so by checking your wireless network log. To do this, click your Start Menu in Microsoft Windows, then double-click My Network Places. Next, double-click View Entire Network. If there are more devices connected than you have allowed on your network, you have WiFi thieves.
A similar method to determining the status of your WiFi user list is to check your router's DHCP client table. Much like viewing your network, your DHCP client table will list the machines on your network. If the number exceeds what you've set up, you have someone stealing your WiFi.
Nobody wants to be taken advantage of. What's more, you certainly don't want illegal information flowing through your wireless network. That's why you need to take matters in your own hands.

Understanding Your WiFi Network


Before you can detect if someone is ripping off your wireless Internet connection, it's important to understand some basic computer networking lingo. For more information on how to set up a wireless network, you must know how WiFi works. Now, let's look at a few of the areas in a wireless network that will give you a baseline for determining if your WiFi signal is being sapped unexpectedly.
A wireless network is comprised of a broadband Internet connection from a DSL, cable or satellite modem. You attach the modem to the wireless router, which distributes the signal and creates a network.
This is what's called a local area network (LAN). This LAN is where you set up computer peripherals such as your desktop or laptop computer and printer. Your router will have what's called a dynamic host client protocol (DHCP) table. In essence, your DHCP table is your guest list of every allowed piece of computing equipment.
Each device has its own media access control (MAC) address. Think of this as its signature. MAC addresses are assigned by the manufacturer, but can be changed by users, if they know how. Your router uses these addresses to assign each machine on your network an Internet protocol or IP address. The MAC and IP addresses of your equipment will be useful in a moment when we look at ways to detect whether or not someone is stealing your WiFi. For a more in-depth understanding of IP addresses.
If you're confused by some of this computer rhetoric, don't be. What's important is that you know what to look for when we get ready to diagnose your WiFi connection. Make sure you read the next post.

Thursday, September 22, 2011

Another piece of silver ware.

Looking for a smart business phone?? Then you don't need to search any more because the BlackBerry Bold 9930. It comes in handy compared to the iPhone 2. Although i am a stunt Nokia user, i definitely recommend this one plus its durable. This piece of device was previously rumored as BlackBerry Montana.


GENERAL2G NetworkGSM 850 / 900 / 1800 / 1900
 CDMA 800 / 1900
3G NetworkHSDPA 900 / 2100
 CDMA2000 1xEV-DO
Announced2011, May
StatusAvailable. Released 2011, August
SIZEDimensions115 x 66 x 10.5 mm
Weight130 g
DISPLAYTypeTFT capacitive touchscreen, 16M colors
Size640 x 480 pixels, 2.8 inches (~286 ppi pixel density)
 - QWERTY keyboard
- Touch-sensitive controls
- Optical trackpad
- Proximity sensor for auto turn-off
- Accelerometer sensor for auto-rotate
SOUNDAlert typesVibration, MP3 ringtones
LoudspeakerYes
3.5mm jackYes
MEMORYPhonebookPractically unlimited entries and fields, Photocall
Call recordsYes
Internal8GB storage, 768 MB RAM
Card slotmicroSD, up to 32GB, buy memory
DATAGPRSYes
EDGEYes
3GRev.A, up to 3.1 Mbps, HSDPA, 14.4 Mbps; HSUPA, 5.76 Mbps
WLANWi-Fi 802.11 b/g/n, dual-band
BluetoothYes, v2.1 with A2DP, EDR
Infrared portNo
USBYes, microUSB v2.0
CAMERAPrimary5 MP, 2592x1944 pixels, LED flash
FeaturesGeo-tagging, face detection, image stabilization
VideoYes, 720p
SecondaryNo
FEATURESOSBlackBerry OS 7.0
CPU1.2 GHz QC 8655 processor
MessagingSMS, MMS, Email, Push Email, IM
BrowserHTML
RadioNo
GamesYes + downloadable
ColorsBlack
GPSYes, with A-GPS support, BlackBerry Maps
Java 
 - NFC support
- BlackBerry maps
- Digital compass
- Document viewer
- MP4/WMV/H.263/H.264 player
- MP3/eAAC+/WMA/WAV player
- Organizer
- Voice memo/dial
- Predictive text input
BATTERY Standard battery, Li-Ion 1230 mAh
Stand-byUp to 307 h (2G) / Up to 307 h (3G)
Talk timeUp to 6 h 40 min (2G) / Up to 5 h 50 min (3G)
Music playUp to 50 h

you need to check out the O/S and CPU, its incredible..