Device/technology specific: This is context information
that is related to the device and technologies being utilised
by the user during interaction with an application. Device
specific context information is also classified into two
groups: input and output characteristics. Input contextual
information includes features of the device that capture
input from the user into the application. Examples include
keyboard (touch vs. keypad), camera and microphone for
voice input. Output contextual information includes
features of the device that relay output from the system to
the user. Examples include the device screen and
speakers.