2. Since the claims may be couched in terms which tend to obscure the fact that the invention relates to a computer program, it is always essential to analyse them, in the light of what is described and of the prior art, in order to identify the contribution to the art and hence determine whether this advance resides in, or necessarily includes, technological features, or is solely intellectual in its content.
For example, if the new feature comprises a set of instructions (program
, which may be formulated and presented in any one of a variety of ways, designed to control a known computer to cause it to perform desired operations, the computer being suitable for the purpose without special adoption or modification of its hardware or organization then, no matter whether claimed as a computer arranged to operate etc or as a method of operating a computer etc .Such a subject matter is not patentable and hence excluded from patentability.|3. If the implementation of a new program requires internal modification to a computer of such a nature that it may reasonably be regarded as a new computer then clearly a claim to this computer is not excluded, even though at first sight the invention may seem to relate merely to a program and the purpose of modifying the computer is subsidiary to this. The modification must however be inventive itself; if a computer is modified in a manner which is the obvious way of implementing the program, then the inventive contribution will still reside solely in the program itself.)