Skip to content

06Jun.md

Latest commit

 

History

History
26 lines (22 loc) · 840 Bytes

06Jun.md

File metadata and controls

26 lines (22 loc) · 840 Bytes

ICT lesson, June 6 notes

1. Internetservices and applicantions

  • Search Engines
    • e.g. Google
  • Social Media
    • e.g. Facebook YouTube
  • Discussion platform
    • LIHKG

2. How does search engines work

  • Provide quick search results using spider programs / web crawlers
    • these progams automatically listen to any websites on the internet
    • read the contents of the webpages and index the webpages = indexing

3. How does discussion boards work ?

  • Save user / msg to Database via SQL

4. How do e-Mails work?

- Send by SMTP, send to specific domain / server and the server redistribute to the desginated user
- In an email:
	- cc = carbon copy
		- basically no difference in normal "To" field
		- Means no special action required
	- bcc = blind carbon copy
		- same as cc, just can't see replies from CC/TO