I have been using the Internet for as long as I can remember. However, it is only with this week's lesson did I gain a true grasp on the basics of web browsing and navigating the web. The most straight-forward lesson was Naviating the Web. I had never took into consideration the aspects of the link that displays itself in the search bar of every browser.
IP (Internet Protocal) address is a number that uniquely identifies each computer or device conncected to the Internet. It consists of four groups of numbers seperated by periods, 216.239.99. There is even a website (http//whatismyipaddress.com) that one can use to find his or her own IP address. Web addresses consist of protocol, domain name, top level domain, path, and file name. Ex.http://www.pickthebrain.com/blog/21-proven-motivation-tactics/ "http://" represents the protocol, "http://www.pickthebrain/" is the url, ".com" is the TLD, "blog/21-proven-motivation-tactics/" is the path, and there is no file name. Browsers are off course what allows you to view web pages, like Mozilla, Safari, and Internet Explorer.
Sunday, October 24, 2010
Sunday, October 10, 2010
Week 7: Clear
It is unfortunately true that I have been on the receiving end of one of those presentations that leaves you dying for a nap. However, it is even more unfortunate to say that I have given a few of those presentations myself. This week's topic taught me how to effectively create a well designed and meaningful presentaion. From layout principles to readability to color/theme, there are a multitude of aspects that make a presentation stand out from the rest.
One of the most important points absorbed was to avoid clutter. Utilize open space. One must keep in mind that not all empty space should be filled in. Sometimes, there is just too much going on in a slide. The signal-to-noise ratio (SNR) stresses to avoid "noisy" graphics or charts. This refers to giving the audience the most important information as opposed to unimportant information. Do not overcomplicate or use vague graphics because your audience will focus on trying to understand the slides instead of paying attention to what is being said.
Another crucial aspect of a good presention is its readability. Make the text big enough for people in the back to read. Slides are not reading material however. If there is alot of text, provide a handout. Provide the most important points or concepts in a slide and use formatting to highlight points. In addtion, using visuals and harmonious colors can keep an audience's attention; as opposed to boring them with same colored/themed slides.
One of the most important points absorbed was to avoid clutter. Utilize open space. One must keep in mind that not all empty space should be filled in. Sometimes, there is just too much going on in a slide. The signal-to-noise ratio (SNR) stresses to avoid "noisy" graphics or charts. This refers to giving the audience the most important information as opposed to unimportant information. Do not overcomplicate or use vague graphics because your audience will focus on trying to understand the slides instead of paying attention to what is being said.
Another crucial aspect of a good presention is its readability. Make the text big enough for people in the back to read. Slides are not reading material however. If there is alot of text, provide a handout. Provide the most important points or concepts in a slide and use formatting to highlight points. In addtion, using visuals and harmonious colors can keep an audience's attention; as opposed to boring them with same colored/themed slides.
Week 6: Clear
This week's topic on Multimedia (images, audio & video) was extremely informative. The area of images caught my attention the most however. It was a relatively simple lesson but now I will be able to tell the difference between Rasper vs. Vector graphics. I've always wondered why some images became pixelated and others did not...now I know. In addition, I learned about lossless vs. lossy compression and the practical uses of each.
First off, a Rasper image is represented by an array of colored dots. The problem with rasper graphics is that when it is zoomed or magnified, you are able to see the jaggedness or blocky aspects of the photograph. They do not scale well to larger sizes. As opposed to Vector Graphics which uses "primitives" (geometrical objects, points, lines, curves, and polygons that are all expressed mathematically. This results in the ability to zoom in or out almost infinitely with no loss of quality.
Lossless compression does not throw away any data but it eliminates redundancy in the image to save space. This is good for archiving and editing images. Lossy compression discards some data that is not usually discerned-- by the majority of people. It looks just as good/crisp and is widely used. The jpg image format uses this type of compression.
First off, a Rasper image is represented by an array of colored dots. The problem with rasper graphics is that when it is zoomed or magnified, you are able to see the jaggedness or blocky aspects of the photograph. They do not scale well to larger sizes. As opposed to Vector Graphics which uses "primitives" (geometrical objects, points, lines, curves, and polygons that are all expressed mathematically. This results in the ability to zoom in or out almost infinitely with no loss of quality.
Lossless compression does not throw away any data but it eliminates redundancy in the image to save space. This is good for archiving and editing images. Lossy compression discards some data that is not usually discerned-- by the majority of people. It looks just as good/crisp and is widely used. The jpg image format uses this type of compression.
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