Patent ID: 7221360

Claim:
An apparatus comprising: a computer ( 2 ) including a housing ( 3 ) that carries a screen ( 4 ) and control means ( 6 ; 6 ′) adapted to be manipulated by a user to generate movements of a mobile object on the screen in at least one direction, said control means comprising a fixed part ( 10 ; 10 ′) and a mobile part ( 7 ; 7 ′) fastened to the housing and cooperating with each other, said fixed part being electrically connected to the housing and said mobile part comprising movement transducer means ( 9 a , 9 b , 9 c , 9 d , 9 ′ a , 9 ′ b , 9 ′ c , 9 ′ d ) which are adapted, in response to movement of the mobile part, to transmit to the fixed part information in the form of electrical signals relating to movement of said mobile object; and a stylus ( 1 ; 1 ′; 1 ″) having an end ( 1 a′ 1 ′ a ; 1 ″ a ) that comprises fixing means ( 1 b , 1 ′ b , 1 ″ b ) adapted to cooperate with complementary fixing means ( 13 ; 13 ′; 13 .sub. 1 ; 17 , 18 , 19 ; 17 ′, 18 ′, 19 ′) fastened to said mobile part to fasten the stylus to said mobile part to form a control that may be manipulated by the user.