Neither, it is a storage device (removable storage).
memory card
Main memory is neither of these.
Input touchscreen Memory card Output touchscreen Ear piece
Normally unless something is broken, it is a storage device (it stores pictures and sometimes videos), an input device (it gets the photos and videos from something within it), and it is an output device (it has a screen)
INPUT
output
Memory Stick is a flash memory card. It is a data storage. In some situations it can be an input device (when you load pictures from it into an image editor), in some it can be an output device (when you write edited pictures back to your Memory Stick).
I expect you mean "Is Card reader/writer input or output?". If this is so, it is both an input and output device. Whenever you are trying to categorize a device as Input or Output, think of how it looks from the computer.If the computer is transmitting data to it, it is an Output device.If the computer is receiving data from it, it is an Input device.
Its an input and an output button OR It,s the basic input and output of a read only memory
Input Capture: The ability to record a time stamp in a memory when an input occurs Output Compare: Is the ability to trigger an output based on a time stamp in memory without interrupting the MCU
The sound card of a computer provides an output - speaker or headphone) and usually an input too - microphone.The card itself is not an output but is an I/O device(input output device) [a bit of semantics here].
Random Access Memory (RAM) is the volatile memory that is both an input and an output. You input data into the memory and can output the result on the monitor or print it out on paper, etc.