Friday, April 3, 2009

Classifying complete computers

Items that are classified under heading code 8471 as "automatic data processing machines" - computers - are machines that must be capable of all the following operations:storing the processing programs that run on them - and at least the data that's needed to run a program.being freely programmed in accordance with the requirements of the user.performing arithmetical computations specified by the user.executing - without human intervention - a processing program for which they need to modify their execution by making logical decisions throughout the process.


Note 5a to Chapter 84 defines the term "automatic data processing machine" for the purposes of heading code 8471. Essentially, goods that are classified as computers must be able to use standard operating software and to perform functions like word processing and spreadsheet applications. They must incorporate a hard disk drive.

A computer may take the form of a system made up of several separate units - for example a keyboard, monitor, base unit and so on. With some exceptions, a unit is treated as part of a computer system if it meets all of the following conditions.

it's of a type solely or principally used in a computer system.it can be connected to the central processing unit (CPU) either directly or through one or more other units.it can accept or deliver data in a form usable by the system - such as codes or signals.Keyboards, X-Y coordinate input devices like joysticks and mouse devices, and disk storage units only need to meet the last two conditions.

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