Input and output device designed for being detachably mounted to an electronic equipment

A system, comprising:

• an electronic equipment;
• and
• an input and output device for at least one of inputting data and displaying information of the electronic equipment, the input and output device being detachably mountable to the electronic equipment in at least two different rotational positions,
• wherein, the input and output device includes a plurality of first contacting arrangements, each of the first contacting arrangements configured to electrically couple to a second contacting arrangement of the electronic equipment, the first contact arrangements spaced-apart and disposed at different rotational positions along the input and output device to permit electrical coupling between the input and output device and the electronic equipment at said different rotational positions,
• the system further comprising a first attachment arrangement disposed on the input and output device and a second attachment arrangement disposed on the electronic equipment, said first and second attachment arrangements complementanly configured to permit rotational engagement of the input and output device relative to the electronic equipment until a point of secure engagement is reached therebetween, and
• wherein the first attachment arrangement and the second attachment arrangement together form a bayonet joint.