For the purpose of this Directive, the following terms shall have the following meanings:

1. (a)

   display screen equipment: an alphanumeric or graphic display screen, regardless of the display process employed;

2. (b)

   workstation: an assembly comprising display screen equipment, which may be provided with a keyboard or input device and/or software determining the operator/machine interface, optional accessories, peripherals including the diskette drive, telephone, modem, printer, document holder, work chair and work desk or work surface, and the immediate work environment;

3. (c)

   worker: any worker as defined in Article 3 (a) of Directive 89/391/EEC who habitually uses display screen equipment as a significant part of his normal work.