42 Designing of machines, apparatus, instruments or systems composed of electronic and telecommunication machines and apparatus; designing of machines, apparatus, instruments, including their parts, or systems composed of such machines, apparatus and instruments; computer programming; technical advice relating to performance being the operation, and operation of computers, automobiles and other machines that require high levels of personal knowledge, skill or experience of the operators to meet the required accuracy in operating them, none of the foregoing including technical advice relating to installation, manufacture, and repair services; quality control for others; calibration being measuring; testing of and scientific research on machines, apparatus and instruments; rental of measuring apparatus; rental of computers; providing temporary use of online, non-downloadable computer programs for database management; rental of laboratory apparatus and instruments