Group 3-4 - Digital Interfaces Definition of Digital...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Digital Interfaces Definition of Digital Interface Abstractions Brief History of Digital Interfaces Mechanical Devices-Abacus, Printing Press, Mechanical Calculator Electrical Devices- Calculators, Electric Typewriters, Modern Computers, and Post-Modern Computers Clarification of Human Input Device and Interface Software Hardware Transitions Point of sales systems in restaurant environments operate on DOS , Windows , Linux or Unix environments. They can use a variety of physical layer protocols, though Ethernet is currently the preferred system. POS systems record sales for business and tax purposes. Illegal software dubbed " zappers " is increasingly used on them to falsify these records with a view to evading the payment of taxes. In retail, biometrics is used when a cashier presses his or her finger on the finger print scanner, which automatically logs them into the POS system based on their fingerprint....
View Full Document

This note was uploaded on 07/24/2011 for the course EEL 3531 taught by Professor Llewelyn during the Spring '09 term at University of Florida.

Page1 / 19

Group 3-4 - Digital Interfaces Definition of Digital...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online