Operating System (OS)
To install the new font in window XP

Start -> setting -> control panel -> font
Start -> setting -> control panel -> font -> install new font
Start -> setting -> font
Start -> control panel -> font -> install new font

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Operating System (OS)
A public key encryption system

allows only the correct sender to decode the data
allows only the correct receiver to decode the data
allows anyone to decode the transmission
None of these
does not encode the data before transmitting it

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