A. modem or d. voice input. Not a port because a port allows one to insert a peripheral device but not really communicate. I have no idea what an expansion slot is. It could be d. voice input because this allows a person to hold an audible conversation.
But I'd go for modem because a modem lets you connect devices like laptops, tablets, phones, computers etc. and share data between them. So things like mailing are possible (I THINK)! <span />
Answer:
Research what kind of computer you want.
Explanation:
I don't know exactly what you are asking here but when doing research you have got to know what you want like how much ram you want, how much storage you want, what brand of computer you want, what core processor you want, and what graphics card you want. You also have to decide if you want a laptop or a full sized desk top computer.
Answer:
By pressing key ALT and F4 to close a window application.
Explanation:
<em>Closing Microsoft application comes in different ways such as:
</em>
<em>
a. Pressing ALT and F4 to close an active window application.
</em>
<em>b. Press the X button at the upper right of the screen.
</em>
<em>
If you are using a MAC or apple computer with Windows emulator, you can simply press on COMMAND key and W key to close an active window application.</em>