Webcams are used for a variety of purposes, including videoconferencing, remote monitoring, and creating time-lapse videos. Most webcams have a built-in microphone that can be used for videoconferencing. Some webcams also have a built-in speaker that can be used to play back recorded videos. Webcams can be connected to a computer using a USB cable, or they can be built into the computer. Webcams that are built into the computer are called integrated webcams. Webcams can be used to take still pictures as well as video. When taking still pictures, the webcam will capture a digital image that can be saved to the computer. Video captured by a webcam can be recorded and saved as a digital video file. Webcam video can also be streamed live over the Internet. Webcams are available in a variety of shapes and sizes. The most common type of webcam is the USB webcam. USB webcams are easy to connect to a computer and are very popular. Other types of webcams include wireless webcams, integrated webcams, and stand-alone webcams. Wireless webcams can be placed anywhere in the room and do not require a USB connection. Integrated webcams are built into the computer and cannot be removed. Stand-alone webcams are not connected to the computer and can be placed anywhere in the room.