WEBCAM

 Webcams (short for web camera) is a term for real-time camera (meaning the current situation as well) whose image can be accessed or viewed via the World Wide Web, instant messaging programs, or video call applications. The term "webcam" also refers to the type of camera used for this purpose. 

There are various kinds of webcam brands, including Logitech, SunFlowwer, and so on. Webcams usually resolution of 352x288 / 640x480 pixels. There are Namunm quality up to 1 Megapixel.

 Webcam or web camera is a small digital video camera connected to a computer through a (usually) a USB port or COM port.

The term refers to the webcam technology in general, so that the web is sometimes replaced with other words that describe the scene shown on camera, for example, which shows StreetCam street scene. There is also Metrocam showing panoramic views of the city and countryside, TraffiCam used to monitor road conditions, weather with Weather Cam, even a state with VolcanoCam volcanoes. 

A simple web camera consists of a standard lens, mounted on a circuit board to capture an image signal; casing (cover), including the front casing and the casing side to cover a standard lens and the lens has a hole in the front casing that allows you to insert an image; support cables, made of flexible material, one end connected to the circuit board and another end has a connector, this cable is controlled to adjust the height, direction and perspective web camera. 

A web camera is usually equipped with the software, this software takes the images from a digital camera is continuously or within a certain time interval and broadcast it via an internet connection. 

There are several methods of broadcasting, the most common method is to modify the software in the form of images into JPEG files and upload to the web server using File Transfer Protocol (FTP).
 Frame rate indicates the number of images can take a piece of software and transfer in one second. For streaming video, it takes a minimum of 15 frames per second (fps) or ideally 30 fps. To obtain a high frame rate, required a high internet connection speed. 

A web camera is not necessarily connected to the computer, there is a web camera webcam software and web server bulit-in, so that it takes is an internet connection. Web camera like this is called "network cameras". We can also avoid the use of cables by using a radio connection, Ethernet connection or WiFi. 

The use of web camera including video conferencing, internet dating, video messaging, home monitoring, sharing images, video interviews, video phone-call, and many other things.
Web camera features and settings vary, including: 

Motion sensing - web camera will take pictures when the camera detects motion. 
Image archiving - users can create an archive that stores all the images from web camera, or just certain images as pre-set intervals. 
Video messaging - some messaging programs support this feature. 
Advanced connections - connect your home theater to a web camera with a cable or wireless. 
Automotion - robotic camera that allows taking pictures in a pan or tilt and extracting the program settings according to the camera position. 
Streaming media - professional applications, web camera setup can use MPEG4 compression for streaming audio and real video. 
Custom coding - import a user's computer code to tell the web camera what to do (eg automatically refresh). 
AutoCam - lets users create a web page for cameranya free web server web camera manufacturer. 
As more and more use of the web camera in the world, aggregator web site appears. This web site allows users to find live video streams based on location or other criteria.

 Another problem is a program called 'Trojan Horse', this program allows hackers to activate the web camera without the knowledge of the camera user. So that hackers can capture live video from the camera user. For overcoming it, the camera-equipped camera lens cover or LED lights that will light up if the camera is switched on. 

Web cameras can cause social problems. Ease of access to live video streams allows rampant illegal pornography or child pornography. Pedophiles can easily relate to the victim without the consent of the victim's parents. The Internet allows sexual transactions with controls almost nothing.

According to research conducted in America that aired on Oprah Winfrey Show, the biggest dream of the pedophiles is that they can be present in the middle of the kids, and web camera technology to realize the dream. Since the web camera not only allows people to meet each other but also allows people to show parts of their bodies. Children who have a high knowledge level will be very vulnerable to this.