(ii) a representation of such a sexual organ or anal region; or (iii) the breasts, or a representation of the breasts, of a female person who is, or appears to be, under 18 years of age; in a way that reasonable persons would regard as being, in all circumstances, offensive; (c) material that describes a person who is, or is implied to be, under 18 years of age and who: (i) is engaged in, or is implied to be engaged in, a sexual pose or sexual activity (whether or not in the presence of other persons); or (ii) is in the presence of a person who is engaged in, or is implied to be engaged in, a sexual pose or sexual activity; and does this in a way that reasonable persons would regard as being, in all the circumstances, offensive; or (d) material that describes: (i) a sexual organ or the anal region of a person who is, or is implied to be, under 18 years of age; or (ii) the breasts of a female person who is, or is implied to be, under 18 years of age; and does this in a way that reasonable persons would regard as being, in all the circumstances, offensive. ‘computer’ means any electronic magnetic, optical or other high-speed data processing device or system which performs logical, arithmetic and memory functions by manipulations of electronic, magnetic or optical impulses and includes all input, output, processing, storage, computer software, or communication facilities which are connected or related to the computer in a computer system or computer network; ‘critical infrastructure’ means electronic systems, devices, networks, computer programs, electronic data, so vital to the country that the incapacity or destruction of or interference with such systems and assets would have a debilitating impact on security, national or economic security, national public health and safety, or any combination of those matters; ‘data’ means a representation of information, knowledge, facts, concepts or instructions which are being prepared or have been prepared in a formalised manner, and is intended to be processed, is being processed or has been processed in a computer system or computer network, and may be in any form (including computer printouts, magnetic or optical storage media, punched cards, punched tapes) or stored internally in the memory of the computer; 2