Hardware Components

Hardware Components
Hardware components are divided into physical hardware and application hardware,
as follows:
Physical hardware. The hardware needed to support the radio physical layer�"
putting 0s and 1s on to a radio carrier, and getting 0s and 1s off a radio carrier
Application hardware. The hardware needed to capture subscriber content
(microphones, vocoders, imaging, and video encoders) and to display content
(speakers, displays, and display drivers)
A typical 3G handset includes a microphone (audio capture); CMOS imager and
MPEG-4 encoder (for image and video encoding); a keyboard (application capture); a
smart card for establishing access and policy rights; and, on the receive side, a speaker,
display driver, and display. The addition of these hardware components (CMOS
imager, MPEG-4 encoder, and high-definition color display) changes what a user can
do and what a user expects from the device and from the network to which the device
is connected.