the internet and its uses (paper 1)
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define what the internet is
a global infrastrucure of interconnected networks
define what the world wide web is
all the web pages that are accessible via the internet
outline the difference between the internet and the world wide web
the internet is the basis and wires and infrastructure of the world wide web, which is all the web pages availiable on the internet
what does URL stand for
uniform resource locator
what is a URL
the unique text-based address each web page has
what do you use to access a web page
a program called a web browser
what is ‘https’
a protocol
what is a protocol
a set of rules for communication between devices
what do the rules of a protocol cover
• standards of physical connections • standards of cabling • standards of mode of transmission • data format • error detection
what does ‘http’ / ‘https’ stand for
HyperText Transfer Protocol (Secure)
what are the functions of a browser
• storing bookmarks and favourites • recording user histroy • allowing use of multiple tabs • storing cookies • providing navigation tools • providing an address bar
what code is used for a web pages
HTML = HyperText Markup Language
what is an IP address
the unique address given to every public-facing, networked computer or computing device in the world
what are the two different types of IP addresses
IPv6 and IPv4
what is the role of the domain name server
to convert a website address (URL) into an IP address so that a browser can makke a requestion to the correct web server with that web page
what happens if the domain name server does not have an entry for that domain name
it passes the request to another more authoritive domain name server and if not match is found still, an error message will be sent
what are cookies
text files with small pieces of data
what type of file is a cookie
a text file
what are cookies used for
to track user preferences, hold items in a shopping cart, store login details and other personal details
what are the two types of cookies
• session cookies • persistent cookies
what are session cookies
cookies that are created and replaced each time a user visits a website
what are persistent cookies
cookies that are created and saved on the first visit and retained until they expire
what is meant by the term digital currrency
any money-like asset that only exists in digital form and exchanged digitally
what is the most well known type of digital currency
bitcoin