apparatus for data processing, transmission and reproduction of data including computer terminals, coders and decoders, scramblers screens and other peripheral equipment for computers software magnetic, optical and electronic data carriers, provided with computer programs or not printed computer programs; instruction books and manuals for computer operation and programming and other printed matter business advice relating to finances and organization, in particular to financial institutions maintenance and repair of computers and peripheral equipment therefor providing telecommunication services to financial institutions by means of a computer network, training of computer operators and organization of courses and seminars, the aforesaid relating to computers and peripheral equipment therefor, to be used in the financial telecommunication; development of computers and peripheral equipment for computers and software for use in a telecommunication network; system analysis and adaptation of individual computer systems to the network system writing and adapting of computer programs rental of computers and peripheral equipment for computers; advice relating to telecommunications services