The two functions are :
- used for network connectivity on cell phones, iPads, and laptops.
- data is carried through radio, infrared and microwave signals.
What is wireless media ?
- Unguided media or unbounded transmission media are other names for wireless communication.
- The transmission of electromagnetic signals in this form is not dependent on any physical medium. When communicating wirelessly, we can send our message by infrared, radio, or microwave waves through the air, water, or vacuum.
Therefore, functions of wireless media include network connectivity on cell phones, iPads, and laptops and radio, infrared and microwave signals to carry data.
You can learn more about wireless media from the given link:
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Answer:
Following are the query and its explanation:
Explanation:
SELECT invoice_number , invoice_total , FORMAT ((payment_total +credit_total),2) AS Credit FROM invoices;
In the above given select command it selects two columns that are "invoice_number , invoice_total" in which it uses the format method that adds "payment_total and credit_total" parameter value and divides the value, and holds its decimal point value use by the invoices table.
It is important to have regular maintenance on office equipment because by having regular maintenance they would be able to determine if a problem is about to occur on the office equipment before it puts the equipment out of commission. This would save money for the office because they would be able to fix the problem cheaper than buying new equipment.