4, 5 , 6 , and plus key
456+
Answer:
<h2>The TCP/IP model consists of four layers: application, transport, internet, and network access. Of these four layers, it is the internet layer that is responsible for routing messages.</h2>
Answer:
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Explanation:
Answer:
Beeper
Explanation:
A buzzer pr beeper, as security device, converts electrical energy to sound energy.
Answer:
Cellphones have evolved rapidly since handheld mobile phones first appeared in the 1970s. ... Generally, phones have evolved to be more compact, to have longer battery life and to allow addition of features beyond making calls, like running apps and sending text messages.
Explanation: