Ques 61-III-D-13

61. Which of the following is not true with respect to a trackball and/or  spaceball

I. A trackball is a two dimensional positioning device while as a spaceball provides six degree of freedom

II. Unlike the trackball a spaceball does not actually move.

III. A trackball is a three dimensional positioning device while as a spaceball provides six degree of freedom.

(A) I & II

(B)  II & III

(C)  II only

(D) III only

ANS-(D)

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