Siemens 7LF4941-0 USB Adaptor And Software For SIEMENS Timer Clock...

USB - Universal Serial Bus

AC - Alternating Current

Digital - A system that uses only 0s and 1s to transmit data

Clock - A device used for telling the time

PC - Personal Computer - an electronic device for acheiving multiple electronic tasks including word processing, emails and internet access

USB - Universal Serial Bus. A method of connecting a device to a computer

Simple - Basic, easy no difficulty in understanding.

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