Topic 5 - The Internet And Its Uses Flashcards
Internet
Global network of interconnected computers
World Wide Web
Part of the internet which users can access using web browser, it is a large collection of web pages
Web browser
Software that allows users to access & display web pages on their device screens. They interpret HTML sent from websites
URL format
Protocol://website address/path/file name
Protocol
http/https
Website address format
- domain host- www
- domain name - website name
- domain type - .com, .org, .net, .gov
And sometimes country code - .uk, .de, .cy
What does HTTP and HTTPS
Hypertext transfer protocol (secure)
Functions of a web browsers (9)
- have a home page
- store users favourite website / web page as bookmarks
- history of websites
- allow users to go forwards & backwards on a website
- allows many web pages to be open at the same time using tabs
- they make use of cookies
- they make use of hyperlinks
- Data is stored as a cache
- provide address bar
DNS servers
A server that converts domain names to IP addresses
Cookies
Cookies are small data’s that get stored on a users computer which are sent by web servers to the browser, they hold key info preferences like language1 currency and previous browser activity
What are the two types of cookies
-Session cookies - ceases to exist when the browser is closed
- persistent cookies - permanently stored on the hard drive