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COMPUTER SCIENCE
Question:- What do you know about audio input and video
input devices?
AUDIO INPUT
Audio input is the sound, such music or voice that is entered into the computer. It
is usually entered into the computer through the microphone. The microphone
converts the analog sound signals into digital signals. The digital signals are then
stored in the computer.
VIDEO INPUT
Video input is the motion pictures that are entered into the computer.
Video devices usually use analog video signals. Computers, however, use digital
signals. For video input, a video camera, VCR or other video device is connected
to a video capture card. The video capture card converts the analog video signals
into digital signals that a computer can store and process.
There are two types of video capture cards. These are:
FRAME-GRABBER VIDEO CARDS: These cards capture only a single frame at a
time.
FULL-MOTION VIDEO CARDS: These cards convert analog signals to digital signals
at a rate of up to 30 frames per second. This gives the effect of a continuous
motion. These cards also known as video adapters.
New video cameras use digital technology. A digital video(DV) is a video camera
that records video as digital signals. A DV camera, therefore, does not need a
video card to connect to the computer. It connects directly to a parallel or USB
port on the computer.

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COMPUTER SCIENCE Question:- What do you know about audio input and video input devices? AUDIO INPUT Audio input is the sound, such music or voice that is entered into the computer. It is usually entered into the computer through the microphone. The microphone converts the analog sound signals into digital signals. The digital signals are then stored in the computer. VIDEO INPUT Video input is the motion pictures that are entered into the computer. Video devices usually use analog video signals. Computers, however, use digital signals. For video input, a video camera, VCR or other video device is connected to a video capture card. The video capture card converts the analog video signals into digital signals that a computer can store and process. There are two types of video capture cards. These are: FRAME-GRABBER VIDEO CARDS: These cards capture only a single frame at a time. FULL-MOTION VIDEO CARDS: These cards convert analog signals to digital signals at a rate of up to 30 frames per second. This gives the effect of a continuous motion. These cards also known as video adapters. New video cameras use digital technology. A digital video(DV) is a video camera that records video as digital signals. A DV camera, therefore, does not need a video card to connect to the computer. It connects directly to a parallel or USB port on the computer. Name: Description: ...
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