Thursday, April 29, 2010

eres reqlmente bonita


quizlet.com
this is just some fun that we had in class, and it's educational...
but i just played some games in germal, which was harder than expected considering i don't know german...
&& it's an online memorization tool that was created in october 2005 :)
which was like, 5 years ago. wow.

And back to ist work, we made html pages, and ^ is minee...i'm sorry that the pictures weird, this new paint in windows 7 is kinda freaking me out. whilst making this, i used the www3school website, which i think is just wonderful as it basically gives you all the information, all you have to do it customise.

*and i put in abit extra...i put in a form !

Friday, April 23, 2010

this city is contagious

define the term - protocol ;
the rules that determine the format and transmission of data between computers

what are the following protocols used for ?
TCP/Ip ; Transmition Control Protocal is the basic communication language or protocol of the internet to send packets of data safely
http; Hypertext Transfer Protocol is the protocol for transfer of web pages. it defines how the browser should respond to some commands
smtp; Simple Mail Transfer Protocol. the protocol used for sending e-mail messages.

what does GUI stand for? What was used before GUI?
Graphic User Interface. &&

there are two methods of data transmissions - serial and parallel. explain the difference between them.

in parallel transmission, multiple bits are sent simultaneously on different channels within the same cable, or radio path, and synchronized to a clock. Parallel devices have a wider data bus than serial devices and are able to transfer data in words of one or more bytes at a time.
in serial tranmissionn bits are sent sequentially on the same channel which reduces costs for wire but also slows the speed of transmission.

define the term URL. explain the components that make up the url.
Uniform Resource Locator
the first part of the address is called the protocol identifer and it indicates what protocol to use.
the second part is called a resource name and it specifies the IP address or the domain name where the resource is located.

in the context of data transmissions, what is error dection? name and exxplain one common method of error dection?
The detection of errors. It is a class of techniques for a computer to detect funny messages that have gone all funny and garbled. A common method is checksum. Each message is transmitted with a number in a formula and the recieveing place puts that same formula in to get that number. If it the same then there has been no funny mixed up messages being sent.

what is HTML and explain why it is important ?
Hyper Text Markup Language. It is important because it is the coding used to make web documents as it defins the structure and layout of the document as well as the content

Wednesday, April 21, 2010

parlez vous francais

how did the internet originate? gain a technological, and potentially a military advantage over the Soviets in the middle of the cold war.
who were the people most responsible for creating it? Tim Burten Lee, and the united states fovernment Advanced Research Projects Agency in 1958.
what system immediately preceded the internet?
what was it's purpose? Internet Protocol is a protocol used for communicating data across a packet-switched internetwork.
what is an IP packet? what is it comprised of? it's like a transporter, where information is disassembled into small blocks of data, sent independently to the destination address, then put back together at the receiving end. Each block of data is known as an IP packet. And it is comprised of an IP header followed by a variable-length data friend.
what does TCP stand for? How does TCP deal with the lost IP packets ?

Transmission Control Protocol, and they request retransmissions of lost packets, rearranges out-of-order packets, and even helps minimize network congestion to reduce the occurrence of the other problems.

the interbam.

the wonderful internet :)

what makes it so essential?

online banks.
social networking sites. - communication with people who live far away from you. used by industry buisnesses to promote. professional exchange of ideas.
blogs. - ideas. promotion.
online shops. (ebay, buisness, stores) they use it to sell and promote their products.
online advertising.
educational purposes. eg. google -posting, sharing,
job seeking.
entertainment. eg, youtube.

the whole idea of a new of communication. (protocol)

and here's some stuff that i learnt from the video/animation thingy ;;

1957- batch processing. one things at a time. remote connection needed.
october4 1957- DARPA. accelerate information sharing.
foundatins of internet - sceince, military, money.
packet switching. objects are sent in parts.
inter-net; the sharing of networks.
phone companies developed the (something) protocol.
1990february- internet up and running.