Answer:
monitor
Explanation:
this is because monitor displays information so it an output
Answer:
Put the Computer to sleep or hibernate Mood
Explanation:
The best way to save power when the computer will not be use for an extended period is to put the computer to sleep or hibernate mood depending on the OS (Operating System) you are using.
For instance in windows 10, all you need do is to Press the Windows key on the keyboard, then click on Sleep.
Answer: Please see below as the answer is self-explanatory
Explanation:
Digital phones, normally uses a keyboard, with the digits 0-9, and special characters like # and *.
When the caller presses any keyboard, an electronic circuit within the phone generates two pure sinusoids, of frequencies within the vocal bandwidth (between 300 Hz and 3 khz, roughly), which identifies uniquely (as decoded by the receiving switch) which was the key pressed.
In this way, the switch reconstructs the phone number called, separating country code, area code and the local number as it receives the tones.
This system is called DTMF (dual tone multi frequency).
The correct answer is: [A]: "data manipulation" .
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