Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof. 84 71 Automatic data processing machines and units thereof; magnetic or optical readers, machines for transcribing data onto data media in coded form and machines for processing such data, not elsewhere specified or included. Commodity Code Description 84 71 30 Portable automatic data processing machines, weighing not more than 10 kg, consisting of 84 71 41 Comprising in the same housing at least a central processing unit and an input and ou 84 71 49 Other, presented in the forms of systems 84 71 50 Processing units other than those of sub-heading 8471.41or 8471.49, whether or not co 84 71 60 Input or output units, whether or not containing storage units in same housing 84 71 70 Storage units 84 71 80 Other units of automatic data processing machines 84 71 90 Other