Chapter 2 Flashcards
(145 cards)
what is the web?
is a service consisting of websites located
on computers around the world, connected through the
Internet.
what is the internet?
is a global collection
of millions of computers linked together to share
information.
What is the ARPANET?
a network that (1) allowed scientists
at different physical locations to share information and
work together on military and scientific projects and (2)
could function even if part of the network were disabled
or destroyed by a disaster, such as a nuclear attack and linked scientific and academic researchers in the US
what is a host?
is any computer or device that
provides services and connections to other computers or
devices on a network.
Net neutrality
is the concept that one website
has the same value or priority as other websites, resulting in
equal, unrestricted access to each site.
Internet service provider
a
company that sells Internet access, must provide the same
level of service to all websites, regardless of their content or
purpose.
Bandwidth
is a common term used to describe the capacity of a
communications channel.
What do high-bandwidth connections do?
support capacity for
transferring content such as videos, music, and other large fil es; it also can support online gaming
What is another word for high-bandwidth connection?
broadband connections
What do low-bandwidth connections do?
support
only slower transfer speeds, as they have less capacity - like sending and receiving emails.
What is another term for a low-bandwidth connection?
narrowband connection
is tl1e transmission of messages and fi les
via a computer network.
Describe the difference between the Internet and the Web
The Internet is a global
system of networks that provides billions of users around
the world to access a variety of services by connecting
networks and devices. The web, along with email, file
transfer services, and messaging, is one of those services.
The web provides information to users via webpages and
websites.
What is a webpage?
is a specially formatted document that can contain text, graphics,
sound, video, and links to other webpages.
Hyperlinks (links)
are words or graphics you can click to
display a webpage or other resources on the Internet, such
as a file.
Static webpage versus dynamic webpage
When you visit a static webpage, you see the same content each time. With a dynamic webpage, by contrast, the content of the
webpage is regenerated each time you display it.
website.
A collection of related webpages (often shortened to
“pages”) and associated items, such as documents and
photos, stored on a web server
Web server
is a computer that delivers requested web
pages to your computer or mobile device.
responsive web design (R\VD)
that adapts the layout of the website to fit the screen on
which it is being displayed.
HTML (Hypertext Markup
Language) i
set of code that developers use to specify
the headings, paragraphs, images, links, and other content
elements that a webpage contains
Name the two core technologies for developing webpages
HTML and CSS
What is CSS?
(Cascading Style Sheets0 and it is used to specify the content’s design and appearance
What is a browser?
An application designed to display webpages
Cache
As you navigate websites, your browser keeps a copy
of each page you view in a holding area (cache) so the next time you go to a webpage, it loads more quickly.