No it is not.
out put
output
out put
output device
No, VDU is an output Device.
no its storage
It depends on the construction. A 'standard' monitor is simply an output device... however - a 'touch-sensitive' monitor is also an input device.
VDU stands for Visual Display Unit
Any input device, such as a mouse or keyboard, can manipulate anyhting on the vdu (visual display unit), in this case it can affect what you see on your monitor.
No it is not.
A VDU is hardware.
Diagonally