Tec11

1- Input:keyboard-you type,mouse-you can click with,bar code readers-scans bar codes on products,printers-print saved documents

out-put: The monitor- projects what in the desktop, projector-enlarges and projects what is a computer,scanner-scans,speaker-projects sound

• A bar code scanner scan the items and allows it to be viewd on the clerks screen, then its then allowed to be printed as a receipt, which helps both the clerk and the buyer to have a secure reliable transaction.
• A credit card machine, which allows transaction to occur directly without the use of cash, which makes safe and secure transaction possible.
• 1- a touch pad: This is an excellent alternative because it allows the user to intract with the computer directly, and it senses the heat source from the users hands. 2-This responds to the persons heat source on the monitor. This allows more interactivity than the touch pad, because you actually touch what you want making it easier and more pleasant for the user. 3- Track balls are more for think pads, bot they allow more room for hands are for the user

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