Yes. Almost all mobile phones have at least one output port - to connect it to a computer via a USB cable.
Audio output.
Yes, the speaker and the screen.
Yes, cell phones are input-output devices.The 'input' part is you pressing keys to dial a number. The 'output' is the display screen.
NO, cell phones contin a cpu, input and output devices but no hard drive
output
Unicorns
just the magnets in the built in speakers
It is an output which is the band of frequencies which are audible when fed to a suitable transducer, e.g. a loudspeaker or a pair of 'phones.
no...probably
try this Q5 search that in google u can see.
3GP is a video file format that is output by certain mobile phones.
electronics such as phones