Electronic appliances and services related to the personal computer, including the PC (desktop or laptop), and communication between computers and the services required by intercommunication networks. These fundamentally include:
Personal computer (Desktop PC, Laptop and PDA).
Email. May be but are not necessarily linked to the PC; mobile phone and TV also make these services possible.
Internet connection. Like email, may be linked to the PC, but not necessarily as both mobile phones and TV can have these services.