With the rapid spread of the Internet every- where in the world, the (31) number of users, one of the most exciting developments on the Internet is E-commerce— (32) commerce. E-commerce has two forms, (33) business- to-business, or B-to-B, and business-to-consumer, or B-to-C. B-to-C was the first of these developments. It grew (34) from the first days when people started to buy things in their homes without going to a shop. First came “catalogue shopping” (35) you choose what you want from a catalogue (36) pictures and other details of everything that is (37) sale. You then send an order with a check by post and the things you have chosen (38) to your home. Then (39) “television shopping”, where (40) a catalogue, the items for sale are shown or (41) on television. (42) , the customer sends a check and the item is delivered to his or her home. Online shopping is the (43) development, where the “catalogue” is (44) on the Inter- net, combining the advantages of both the book catalogue and the television and indeed adding more (45) . The customer (46) his choice but rather than sending an order and a (47) through the post, he places the order and pays for it using his credit card, all using (48) . Many people worry about giving details of their credit card over the Internet and the danger that it may be deceitfully used. (49) , the general view is that with modem systems of secure encoding the dangers of the misuse of credit cards is (50) greater in a shop, garage or restaurant than using it for shopping on the Internet.