Digital Cameras
A digital camera doesn’t use film. Photos are stored as digital
data (bits made up of 1s and 0s), usually on a tiny storage device
known as a flash memory card. You can connect the camera or
memory card to a PC and then alter the images (you can cut, paste,
add effects, etc.) using a program like Adobe Photoshop, or you
can view the images on a TV set. Many printers have a special
socket so that you can print images directly from a memory card or
camera.
Camcorders and Web Cameras
A camcorder, or digital video camera, records moving pic-
tures and converts them into digital data that can be stored and ed-
ited by a computer with special video editing software. Digital
video cameras are used by home users to create computer art and
video conferencing. They are also used to send live video images
via the Internet. In this case they are called web cameras, or
webcams. They can be used to record photos and video onto your
hard disc.
The resolution of webcams is expressed in megapixels (mil-
lion pixels). Webcams connect to the PC via a USB (universal se-
rial bus) or FireWire port; they display video at 24 to 30 frames
(pictures) per second. Some include a headset with a microphone
and earpiece.
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