Computer Crimes 7 (3) For the purposes of paragraph (2)(c), a person uses a program if the function he causes the computer to perform— (a) causes the program to be executed; or (b) is itself a function of the program. (4) For the purposes of paragraph (2)(d), the form in which any program or data is output and in particular whether or not it represents a form in which, in the case of a program, it is capable of being executed or, in the case of data, it is capable of being processed by a computer is immaterial. (5) For the purposes of this Act, access of any kind by any person to any program or data held in a computer is unauthorized if— (a) he is not himself entitled to control access of the kind in question to the program or data; and (b) he does not have the consent or exceeds any right or consent to access by him of the kind in question to the program or data from any person who is so entitled. (6) A reference in this Act to any program or data held in a computer includes a reference to any program or data held in any removable storage medium which is for the time being in the computer. (7) For the purposes of this Act, a modification of the contents of any computer takes place if, by the operation of any function of the computer concerned or any other computer— (a) any program or data held in the computer concerned is altered or erased; (b) any program or data is introduced or added to its contents; or (c) any event occurs which impairs the normal operation of any computer, and any act that contributes towards causing such a modification shall be regarded as causing it.