Computer hardware (consultancy in the field of ); computer programming; computer programs (duplication of ); computer software design; computer software (installation of ); computer software (maintenance of ); computer software (updating of ); computer system design; computer systems analysis; consultancy in the field of computer hardware; creating and maintaining web sites for others; data conversion of computer programs and data (not physical conversion); design (computer system ); duplication of computer programs; hosting computer sites (web sites); installation of computer software; maintaining (creating and ) web sites for others; maintenance of computer software; recovery of computer data; software design (computer ); software (rental of computer ); software (updating of computer )