1. Joshua Mathew
2nd period
Arpanet is the first operational
packet switching.

2. Hard and Soft Bounce
• The difference between them is that hard is
undeliverable mail, and soft is when it gets as
far as the recipient.

3. Computer Spam
• It is junk mail, that usually advertises
products.

4. Internet and Intranet
• The difference between them is that intranet
is a personal network, that uses internet.

5. POP
• Is postal office protocol, this is a way to
receive e-mail over TCP/IP connection.

6. Phishing
• This is a security system that protects from
identity theft.

7. Encryption and Decryption
• Encryption is transferring
information, decryption is the opposite.

8. Netiquette

9. Router
• A router is a way for you to connect more than
one computer to a network.