Question

Identify all of the output devices at a supermarket self checkout machine. What data is output for each device?

Answer 1

The output devices at a supermarket self checkout machine include a display screen, receipt printer, and cash dispenser (if applicable). They output visual information, printed receipts, and physical cash.

Step-by-step explanation:

The output devices at a supermarket self checkout machine include:

• Display screen: This device outputs visual information to the user, such as the prices of scanned items, total amount due, and any error messages.
• Receipt printer: This device outputs a paper receipt that includes the list of purchased items, prices, discounts, and total amount paid.
• Cash dispenser: If the self checkout machine accepts cash, it can also output physical cash as change to the user.

The data output for each device includes visual information on the display screen, a printed receipt from the receipt printer, and physical cash from the cash dispenser (if applicable).