A netbook is a lightweight computer which consists of a long battery life and is known as ideal for travelling. Netbooks have built in Wifi and are optimized for browsing the World Wide Web and Email.
Cloud computing is a general term for anything which involves delivering hosted services via the Internet. An elaborated definition would be a self - service environment for the creation of highly - scalable applications, with the immediate availability of compute power and granular levels of billing. Cloud computing is simply Internet-based computing, in which shared resources, software, and information are presented to computers as well as other devices on demand similar to an electricity grid. Traditionally, many people couldn't access the processing power of a supercomputer. With cloud computing, practically anyone could access into that sort of power.
Google Docs is a free web - based service presented by Google as well as allows users to create and edit documents online while collaborating in real - time with other users.
Applications used by Google Docs vary from word processors, spreadsheets, PowerPoint presentations, forms in addition to data storage services. While these applications aren't as comprehensive as the leading desktop counterparts, they have advantages over the traditional software. Applications aren't tied to specific computers and have no need to be downloaded and installed on a particular machine as any computer connected to the Internet can access Google Docs.
Cloud computing is highly recommended as with the assistance of the system each user who saves information on it, can access the same file/s from anywhere. Users don't need to worry about which version of a document is the most current as it will always be saved in the Google cloud.
Advantages of Google Docs include:
- The applications provided aren't as complex as the leading desktop counterparts.
- A user doesn't have to download and install software on a particular machine. Google Docs can be accessed by any computer connected to the internet.
- Each user can access the same files saved to the cloud system from anywhere.
- A user doesn't have to worry about the version of the document as it will be saved in the Google cloud.
- Multiple users can access the same file from anywhere (known as online collaborations)
- Google Docs preserves earlier versions of documents which means there is no reason to worry about irrevocably changing a file.
- More page sizes: Google Docs has introduced two more page sizes.
- Auto linking in documents: this feature automatically changes text into a link when it detects that a link has been entered.
- Comes with 53 embedded languages - allows users to easily translate documents into several languages.
- You can work from any computer with an internet connection, your files are always safe in the cloud, you can do collaborative work wirelessy.
A protocol is an agreed method of completing an activity. Communication between computer systems rely upon agreed methods and these methods are known as communication protocols.
Overall, TCP/IP is a large collection of several communication protocols although both these protocols have their own definition shown below:
TCP is used for transmission of data from an application to the network in addition to is responsible for breaking data down into IP packets before they are sent and for assembling the packets when they arrive.
IP takes care of the communication with other computers as well as is responsible for the sending and receiving data packets over the Internet.
HTTP takes care of the communication between a web server and a web browser in addition to is used for sending requests from a web client also known as a browser to a web server, returning web content (web pages) from the server back to the client.
SMTP is simply used for the transmission of e-mails.
FTP takes care of the transmission of files between computers.
HTML represents Hypertext Markup Language, a standardized system used in order to tag text files either to achieve font, colour, graphic in addition to hyperlink effects on World Wide Web pages.
XML represents Extensible Markup Language, a metalanguage which allows users to define their own customized markup languages in order to portray documents on the World Wide Web.
1) A URL represents a uniform resource locator (URL) and in the case of computing, defines the concept of a specific character string that constitutes a reference to an Internet resource
2) An IP address is the unique address assigned to each machine order for it to run smoothly and effectively. IP address' are related to URL as they are simply a complex version of an URL. URL's had initally been created in order to simplify for us humans, the way we remember websites.
216.27.61.137 is an example of a IP address, instead of using this, we could simply remember the words of the website - http://www.blogspot.com It's easier to comprehend in addition to efficent for humans. IP stands for Internet protocol and these certain addresses are 32 - bit numbers, normally expressed as four "octets" in a "dotted decimal number"
3) In the case of our school website, in order to access it you must type in the following: http://webserver.mcauley.nsw.edu.au:81/
With the assistance of the link above, it is evident that there have been several symbols and words added to the URL. More importantly the two '//' indicate to the viewer that this website is a local file.
4) In the case of Internet protocol, the term "octets" are the representation for an eight digit binary number. For instance - 216.27.61.137
BROADBAND SPEEDTEST - CONNECTION SPEED
Using the website I had calculated the connection speed from Sydney, Australia to Tashkent, Uzbekistan and the results are featured below.
1) Upload speed is simply the rate in which the files you send from your computer online or via the internet. Download speed is the rate in which files are saved on your computer. upload and Download speed often intend to vary.
2) The units used to measure the download speed is Megabytes Per Second or Mb/s.
3) Different locations offer different download speeds due to the reason being that sometimes the data you are requesting or wishing for is stopped by an error occuring during the process. This concept is referred to as 'the bottleneck'. In order to receive your data, it would be obliged to resend until the data has been succesfully sent.
1) A communications protocol is a system of digital message formats and rules for
exchanging those messages in or between computing systems and in
telecommunications. Protocols may involve signaling, authentication, and error
detection and correction capabilities. A type of protocol is an Internet
Protocol (IP).The Internet Protocol (IP) is a network-layer (Layer 3)
protocol that contains addressing information and some control information that
enables packets to be routed.IP has two primary responsibilities: providing
connectionless, best-effort delivery of datagrams through an
internetwork;
and providing fragmentation and reassembly of datagrams to support data links
with different maximum-transmission unit (MTU) sizes.
2) TCP/IP stands for Transmission Control Protocol is one
of the core protocols of the Internet Protocol Suite. IP has two primary
responsibilities: providing connectionless, best-effort delivery of datagrams
through aninternetwork; and providing fragmentation and reassembly of datagrams
to support data links with different maximum-transmission unit (MTU)
sizes.
HTTP stands for Hypertext Transfer
Protocol. HTTP's use is to exchange or transfer hypertext in distributed,
collaborative, hypermedia information systems (ie. websites). HTTP defines how
messages are formatted and transmitted and what actions Web servers and browsers
should take in response to various commands. When the URL is entered in the
browser, it sends an HTTP command to the web server 'telling' it to retrieve and
transmit the information on the web page. This is why 'http://' is found at the
beginning of a URL. Essentially, it is a method by which computers communicate
webpages to one another. It is the foundation of data communication for the
World Wide Web.
SMTP stands for Simple Mail
Transfer Protocol. SMTP is an Internet standard for email transmissions
(sending) across IP networks. It is used by most e-mail systems that send mail
over the Internet to send messages from one server to another. Essentially, it
is a protocol used for sending e-mail messages between
servers.
POP stands for Post Office Protocol. POP
is an Internet standard protocol used by local e-mail clients to retrieve e-mail
from a server (ie. SMTP) over a TCP/IP connection. Essentially, POP is a
protocol used to retrieve e-mail from a mail server. It is used by most e-mail
applications/clients, along with IMAP (Internet Message Access
Protocol).
FTP stands for File Transfer Protocol.
FTP is a standard network protocol used to transfer friles from one host to
another over a TCP-based network (ie. the Internet). Essentially, FTP is the
protocol used for exchanging files over the Internet. It works the same way
as:
HTTP - for transferring web pages from a server to a user's
browser
SMTP - for transferring e-mails across the Internet.
Essentially,
FTP is used to download a file from a server using the Internet or to upload a
file to a server.
3) GUI represents Graphic User Interface, before GUI, PUI (PARC User Interface) had been used.
4) Serial Data Transmission is the process of sending data one bit
at a time, in a sequence, over a communication channel.
Parallel
Data Transmission is the process of sending several data signals
simultaneously over several parallel channels.
The difference between a
parallel and a serial data transmission is that serial transmission sends data
one bit/data at a time, while parallel transmission sends multiple bits/data in
the same time. Also, serial transmission uses only one communication channel
while parallel transmission uses multiple communication channels.
5) URL stands for Uniform Resource Locator. URL is the global address of
documents and resources on the World Wide Web (WWW). It is a specific character
string which is a reference to an Internet source. An example of URL one of the most common websites used:
http://google.com
http: the first part of the URL is a
protocol identifier, which indicates which protocol to use (eg. HTTP, FTP,
etc.).
google.com: the second part of the URL is a
resource name, which specifies the IP address or the domain name (ie.
google.com) where the resource is located.
These two parts (protocol
identifier and resource name) are separated by a colon and two forward
slashes. ://
6) Error detection is the detection of errors caused by noise or other impairments
during transmission from the transmitter to the receiver.
7) Error detection is important in the cases of internet, as it warns in addition to protects our transmitter by alerting us of the errors catalysed by the noise. It's simply protecting your transmitter and receiver.
8) HyperText Markup Language (HTML) is used to make webpages. It is known as the backbone to all web designs. Every webpage has at least some HTML on it. HTML is used in conjunction with JavaScript and CSS to make the page that you view. It is used to format the text, layout, images, links, everything you see on the page. The combination of these three elements are known as XHTML. The importance of HTML is indescribable as without it, there would be no such thing as websits or pages.
1) The internet had originated in the United Kingdom by Tim Berners Lee. He developed software for the World Wide Web and it officially became available from 1991. The internet initially began in the late 60s and 70s through the military. It wasn't until during the late 80s that the World Wide Web as we know came to popularity.The Internet was created as a project in 1958 by the United States Government ARPA (The Advanced Research Projects Agency) to network computers in order to gain a technological and potentially military advantage during the cold war.
2) During the creating of the internet, many people in addition to countries were responsible. There are several amounts of people who put alot of work and determination into creating the Internet. One could say the people responsible for its creation was the United States who funded programs to create military computer networks. Although another very important as well as important person who contributed in the creation of the internet, is Tim Berners Lee, who developed software for the World Wide Web and introduced it from 1991.
3) Tim Berners Lee had initially begun networking computers before the devolopment of the PC, with the project Community Memory project in the late 1970s. Although this system had terminals for instance screens with keyboards connected to one large computer that did the actual processing). These were placed in laundromats, the Whole Earth Access store, and community centres in San Francisco, USA. This network used permanent links over a small geographical area rather than telephone lines and modems.
4) IP packet is the simplest data chunk that can be sent via the internet. All the data is partitioned into IP packets on the computer which is sending and reassembled on the receiving computer. Each IP packet contains header information that includes the type of traffic it is for instance FTP or UDP and where it originated from.
5) TCP represents Transmission Control Protocol over Internet Protocol. These are two transmission protocols of which work together to help the servers, clients and devices on the network talk to one another.
6) Computer people like everything in letters as they often prefer it due to the efficiency and ease remembering acronyms in addition to it's shorter to type and refer to.
