computer network

1. www

1.1. web browsers

1.2. components

1.3. url's

1.4. web servers

1.5. website pages

2. networks

2.1. node

2.2. link

2.3. small lab network

2.4. home network

2.5. SMB & enterprise network

3. internet

4. hardware and software

4.1. NIC

5. user apps

5.1. email

5.1.1. sending email-senders perspective

5.1.2. sending email-network perspective

6. voice calls

6.1. anolog

6.2. digital

6.3. end-to-end,mobile calls

7. recorded videos

7.1. digital videos

7.2. video files

7.3. videocompression