It's all 3.
An SD card is considered a storage device rather than an input or output device. It is used to store data such as photos, videos, and documents. When data is written to an SD card from a computer or camera, it is considered an output action, and when data is read from an SD card into a device, it is considered an input action.
Speakers are considered to be an OUTPUT device, as the signal is traveling out of your device, and into the speaker.
input device
A keypad is an input device.
input device
Input.
A camera is an input device. The information recorded can be displayed on an output device such as a screen. The screen may be a part of the camera body.
If it is a basic (non smartphone) then the input devices it uses are a radio receiver, a microphone and a small keypad. If it is a smartphone then the input devices are, a camera a magnetometer a tilt meter, an accelerometer, a touch screen, a GPS receiver, a radio receiver and a microphone.
input
Input When connected to a computer the camera inputs images
Yes they are input devices.
Input
yes it can be
Yes.
yes it is
A digital camera is an input device because it captures information and stores it on the device via the memory card(which is a storage device).
Web cam is an input device.