CHAPTER 3 Flashcards
refers to any network of interconnected networks.
internet (with small I)
refers to the global system of interconnected networks that we use in our day-to-day lives.
Internet (with capital I)
can be any interconnected-network of computers or similar things between any organization(s) or group of people which may not be known or accessible to the public.
internet (with small I)
the kind of inter-network or internet in short which we are using now, i.e. “www”(World wide web).
the largest internet we have in this world which comprises of trillions of computers being connected to each other. Because of its size, it is very much public.
Internet (with capital I)
a massive network of networks, a networking infrastructure that uses TCP/IP to transmit data via various types of media.
Internet (with capital I)
sometimes called simply “the Net”
Internet (with capital I)
the space of electronic movement of ideas and information.
cyberspace
Rather than moving through geographical space, it moves your ideas and information through cyberspace
Internet (with capital I)
a network of networks in which users at any one computer can, if they have permission, get information from any other computer (and sometimes talk directly to users at other computers)
computer networks
a worldwide system of computer networks
Internet (with capital I)
TCP/IP stands for:
Transmission Control Protocol/Internet Protocol
a suite of communication protocols used to interconnect network devices on the internet.
also used as a communications protocol in a private computer network (an intranet or extranet).
TCP/IP (Transmission Control Protocol/Internet Protocol)
The origins of the internet are rooted in the USA of the ______.
1950s
Computers in the 1950s, back then filled up entire rooms scientists and researchers used it for years to communicate during the ________. At this time, computers were large, expensive machines exclusively used by military scientists and university staff.
Cold War
the first practical schematics for the internet would not arrive until what year?
Early 1960s (1962)
Who popularized the idea of an “Intergalactic Network” of computers.
MIT’s Joseph Carl Robnett Licklider
a method for effectively transmitting electronic data that would later become one of the major building blocks of the internet.
packet switching
the transfer of small pieces of data across various networks.
a method of splitting and sending data
packet switching
A computer file is effectively broken up into thousands of small segments called what?
packets
each packets are typically around _________. Distributed across a network, and then reordered back into a single file at their destination.
1500 bytes
This method is very reliable and allows data to be sent securely, even over damaged networks; it also uses bandwidth very efficiently and doesn’t need a single dedicated link, like a telephone call does.
packet switching
In this year, the first version of the internet was created and set up as a network
1969
the first version of the internet was created and set up as a network called ARPANET, ARPANET stands for:
Advanced Research Projects Agency Network
. A student programmer named ________ sent the first message over ARPANET
Charley Kline
When did Charley Kline sent the first message over ARPANET?
October 29, 1969
The technology continued to grow in the year ______ after two scientists developed Transmission Control Protocol and Internet Protocol, or TCP/IP.
1970s
The two scientists who developed Transmission Control Protocol/Internet Protocol (TCP/IP)
Robert Kahn and Vinton Cerf
allowed computers to speak the same language, and it helped the ARPANET to grow into a global interconnected network of networks, an example of ‘internetworking’—internet for short.
Transmission Control Protocol (TCP)
Every device connected to the internet is given a unique IP number. Known as what?
(the number can be used to find the location of any internet-connected device in the world.)
IP address
In what year did the US National Science Foundation created Computer Science Network which allowed computer science departments and industrial science laboratory to connect with ARPANET.
1981
When did ARPANET adopted TCP/IP?
This is also the date where researchers began to assemble the “network of networks” that became the modern Internet.
January 1, 1983
In what year did the online world then took on a more recognizable form, when a computer scientist invented the WWW.
1989
The computer scientist who invented the WWW.
Tim Berners-Lee
The decade when the Internet appeared
1990s
isa group of two or more computers or other electronic devices that are interconnected for the purpose of exchanging data and sharing resources.
Network
How to access the internet? Through what?
Internet Service Provider (ISP).
a commercial organization with permanent connection to the Internet that sells temporary connections to subscribers.
Internet Service Provider (ISP).
When did Tim Berners-Lee written the three fundamental technologies that remain the foundation of today’s web (and which you may have seen appear on parts of your web browser) ?
October 1990
The three fundamental technologies that remain the foundation of today’s web:
- HTML (Hypertext Markup Language)
- URI (Uniform Resource Identifier) or commonly called URL (Uniform Resource Locator)
- HTTP or HTTPS (Hypertext Transfer Protocol or Hypertext Transfer Protocol Secure)
The markup (formatting) language for the web.
HTML: HyperText Markup Language
A kind of “address” that is unique and used to identify to each resource on the web
URI (Uniform Resource Identifier) or commonly called URL (Uniform Resource Locator)
Allows for the retrieval of linked resources from across the web.
HTTP or HTTPS (Hypertext Transfer Protocol or Hypertext Transfer Protocol Secure)
The four structures of URL:
- Protocol
- Subdomain
- Domain name
- Path/Page
Identify the four structures of URL in this example:
https://www.hostinger.com/tutorials/what-is-a-domain-name
https:// (Protocol)
www. (Subdomain)
hostinger.com (Domain name)
/tutorials/what-is-… (Path/Page)
a way of accessing information over the medium of the internet.
World Wide Web (www) or simply web.
The web also utilizes 1._______, such as Internet Explorer, Firefox or Google Chrome to access Web documents called 2._______
- Browsers
- webpages
this contain graphics, sounds, text and video
web documents
HOW TO SEARCH ON THE INTERNET EFFECTIVELY?
- Keep it simple
- Use specific keywords
- Use quotation marks for exact phrases
- Boolean searching (Use + and - to narrow your search)
Uses/Benefits of Internet
- Access to Information
- Communication
- Convenience
- Entertainment
- E-commerce
- Improve healthcare
- Increased social connections
Disadvantages of Internet
- Cybersecurity risks
- Addiction
- Misinformation
- Isolation
- Privacy Concerns
- Digital divide
a system where the computers are connected within a primary physical space.
It is more secure because outside devices have no access to the network
Ethernet
a system of interconnected computer networks which use the TCP/IP protocol to link devices worldwide.
It is less secure as anyone can access the network and gain the information
Internet
Example of Ethernet
LAN (Local Area Network)
Example of Internet
WAN (Wide Area Network)
Uses broadcast network to implement communications.
It allows only one communication at a time.
Ethernet
It uses point to point network to implement communications.
It allows multiple communications taking place concurrently along its different paths
Internet
MEMA LANG:
The title of Chapter 3
THE INTERNET AND THE WWW
