Thursday, December 6, 2007
Wednesday, November 28, 2007
Nomination List
Hi, all. I have counted the numbers of blogs. Basically, I used the following factors to decide nominatees.
A) how many articles posted
B) how many comments made to others
C) how many comments your articles have gained
Though those factors are not the best measurements, they reflect, to certain degree, your activities. Now it's time for you to judge the qualities! Whose posts you like the most? Who do you think contribute the most to the site? you use whatever standard you want to choose 4 people from the following list of 10 nominees. Please be fair. To help you review, I organized a webpage to list all the articles posted. Click here to see them. I know that might be too many. You can use "statistical sampling techniques" if you want. ;)
Nomination:
A) how many articles posted
B) how many comments made to others
C) how many comments your articles have gained
Though those factors are not the best measurements, they reflect, to certain degree, your activities. Now it's time for you to judge the qualities! Whose posts you like the most? Who do you think contribute the most to the site? you use whatever standard you want to choose 4 people from the following list of 10 nominees. Please be fair. To help you review, I organized a webpage to list all the articles posted. Click here to see them. I know that might be too many. You can use "statistical sampling techniques" if you want. ;)
Nomination:
You are all out now
Some one dared to try posting after 11:59pm yesterday!(Dr. Fang feel authorities being challenged.) Yeah, I didn't do that because I was too tired to stay up till midnight after a long working day.
I have removed all your names so you couldn't post any more. I will start counting this afternoon and nominate some good ones by tomorrow. But all in all, very impressive job. I learnt a lot from you.
I have removed all your names so you couldn't post any more. I will start counting this afternoon and nominate some good ones by tomorrow. But all in all, very impressive job. I learnt a lot from you.
Tuesday, November 27, 2007
THE LAST POST
I wanted to be the last post I just finished doing some homework and saw what time it was. Good luck to everyone on their finals.
Bye Bye Blogosphere!
Wow! I have blogged for a whole semester. Although this was my first blogging experience I think I have participated in other forums on the Internet that were bloggish in presentation. Nonetheless, I can tell people that I have blogged. I was knocking blogs a few months ago and now I think that they are ok. I am still skeptical of blogs. Good luck to everyone on their test!
MIS = the development and use of information systems that help businesses achieve their goal and objectives.
^
That will be on the test fo’ shizzle my nizzle.
:)
MIS = the development and use of information systems that help businesses achieve their goal and objectives.
^
That will be on the test fo’ shizzle my nizzle.
:)
Chapter 5 Part 4 Computation
Chapter 5 Part 4 Computation
A) 10mbps Ethernet B) Bluetooth technology C) IEEE 802.11b D) IEEE 802.11g
1) Assume that the effective communication rate is 40% for all the above communication technologies. Also assume that the average size of a music file is 4MB per song. Estimate the time needed to download 15 songs.
A)
Effective Speed = 10mpbs * 40% = 10 (1,000,000) bps * 0.40 = 4,000,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 4,000,000 bps = 125.83 seconds / 60 = 2.1 minutes
B)
Effective Speed = 1Mbps * 40% = 1 (1,000,000) bps * 0.40 = 400,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 400,000 bps = 1258.29 seconds / 60 = 20.97 minutes
C)
Effective Speed = 11Mbps * 40% = 11 (1,000,000) bps * 0.40 = 4,400,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 4,400,000 bps = 114.39 seconds / 60 = 1.91 minutes
D)
Effective Speed = 54Mbps * 40% = 54 (1,000,000) bps * 0.40 = 21,600,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 4,400,000 bps = 23.30 seconds / 60 = .39 minutes
2) Except for communication speed, discuss other pros and cons of implementing those technologies. Based on your discussion, give your choice.
IEEE 802.11g is obviously the fastest but it can have interference with microwaves and cordless phones. IEEE 802.11b which is the second fastest has similar problems. Bluetooth is the slowest of the four options and has security issues. Ethernet seems to be the safest best. It is not extremely slower than IEEE 802.11b or IEEE 802.11g and it will definitely have less interference because it is hardwired. Therefore, I choose Ethernet as the most efficient way to transfer the songs.
3) Why Wimax is not being considered in this application?
WiMax is not being considered in this application because it is not readily available and is expensive. Companies are still working on it to make it a reality. WiMax is the next wave, not the current wave.
A) 10mbps Ethernet B) Bluetooth technology C) IEEE 802.11b D) IEEE 802.11g
1) Assume that the effective communication rate is 40% for all the above communication technologies. Also assume that the average size of a music file is 4MB per song. Estimate the time needed to download 15 songs.
A)
Effective Speed = 10mpbs * 40% = 10 (1,000,000) bps * 0.40 = 4,000,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 4,000,000 bps = 125.83 seconds / 60 = 2.1 minutes
B)
Effective Speed = 1Mbps * 40% = 1 (1,000,000) bps * 0.40 = 400,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 400,000 bps = 1258.29 seconds / 60 = 20.97 minutes
C)
Effective Speed = 11Mbps * 40% = 11 (1,000,000) bps * 0.40 = 4,400,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 4,400,000 bps = 114.39 seconds / 60 = 1.91 minutes
D)
Effective Speed = 54Mbps * 40% = 54 (1,000,000) bps * 0.40 = 21,600,000 bps
Data Amount = 4MB * 15songs = 4 * 1024 * 1024 * 8 * 15 = 503,316,480 bits
Time = 503,316,480 bits / 4,400,000 bps = 23.30 seconds / 60 = .39 minutes
2) Except for communication speed, discuss other pros and cons of implementing those technologies. Based on your discussion, give your choice.
IEEE 802.11g is obviously the fastest but it can have interference with microwaves and cordless phones. IEEE 802.11b which is the second fastest has similar problems. Bluetooth is the slowest of the four options and has security issues. Ethernet seems to be the safest best. It is not extremely slower than IEEE 802.11b or IEEE 802.11g and it will definitely have less interference because it is hardwired. Therefore, I choose Ethernet as the most efficient way to transfer the songs.
3) Why Wimax is not being considered in this application?
WiMax is not being considered in this application because it is not readily available and is expensive. Companies are still working on it to make it a reality. WiMax is the next wave, not the current wave.
Feds Denied Access to Amazon.com Records
Federal prosecutors tried to get their hands on the customer records of Amazon.com but failed when a judge denied them. The prosecutors wanted to get access to Amazon.com records in order to prove a tax evasion case against a city official in Wisconsin. If these prosecutors would have gotten their way, they would have opened Pandora's Box. Privacy is one thing that many people rely on and having the government wanting to look into your records of what you buy and scrutinizing it is very discomforting.
http://www.news.com/8301-13578_3-9824635-38.html?tag=nefd.top
http://www.news.com/8301-13578_3-9824635-38.html?tag=nefd.top
Where do you keep your headset?
This article simply shows a cellphone out on the Asian market which has a secret compartment to store your Bluetooth headset. I don't personally have a Bluetooth headset but I do wonder where people keep theirs when not in use? I know some keep it on their ear but I wonder about those who don't. This cellphone is pretty convenient for Bluetooth headset users. I swear, technology keeps creating devices embodying the "all-in-one" gadget.
Article: http://crave.cnet.com/8301-1_105-9823367-1.html?tag=cnetfd.mt
Yahoo's E-Commerce Mess
On Monday, Yahoo's e-commerce services that is used by many small merchants started experiencing difficulties in the checkout process. Yahoo's e-commerce service was out for hours and caused many merchants who use Yahoo's service to lose out on business they lost from the problems but it was also magnified because Monday was also "Cyber Monday" which is a big online shopping day after Thanksgiving. The problems have now been fixed but one unhappy merchant brought up the question about when Google will start their own merchant service. Its abundantly clear that e-commerce has grown over the years and how much more business it brings many businesses so having a reliable way to sell merchandise online is very vital.
http://www.news.com/8301-10784_3-9824045-7.html?tag=nefd.top
http://www.news.com/8301-10784_3-9824045-7.html?tag=nefd.top
Holiday Shopping
Now that Black Friday is over, time for additional shopping for Christmas. This video shows many different gadgets offered as potential holiday gifts. I haven't had time to see what's new out there so a lot of the items shown are new to me. Even if these gifts may interest me, I don't think I can afford them right now. And if I did, I'd be buying them for me! Haha.
Enjoy!
Video: http://www.cnn.com/video/#/video/tech/2007/11/27/taser.torture.cnn
Enjoy!
Video: http://www.cnn.com/video/#/video/tech/2007/11/27/taser.torture.cnn
Sony Sells 1 Million PlayStation Portables In Two Months
Sony is continuing its efforts to take over the gaming world. In an effort to corner the hand held gaming system market, Playstation modified its Play Station Portable to help compete with the Nintendo DS. So far their advancements seem to be working. Over the past couple of months Sony has managed to sell 1 million units. Along with the modifications, a better price point, and incentive packages the PSP is slowing becoming the hand held gaming system to compete with. I’m sure I’ll be investing in one shortly, if the price is right that is.
http://tech.yahoo.com/news/cmp/204204090
http://tech.yahoo.com/news/cmp/204204090
Want a cooler Computer?
Malware Attacks Through Google Search
When you go on Google to look for something, you trustingly click on links in hopes of finding what you want but doing so can expose you to malware. Google has been a very reliable search engine for finding what you need but recently their algorithm that allows you to find what you need has been sprinkled with links that have malware. Sunbelt Software, a security firm, has been looking at this trend for some time where "any Google search term–even terms like 'hospice'– can take you to one of these malware sites." Google hasn't fixed the problem yet but they know about the problem.
http://blogs.zdnet.com/security/?p=688
http://blogs.zdnet.com/security/?p=688
Crash Proof CAR
At first when I saw this title I thought cars were made up of strong enough material to where it'd be impossible to crash your car.
Nope. Think again.
There are cars with a built-in sensor device which can sense if you're going to run a red light and the car will automatically brake for you and it can also alert the driver if a pedestrian is about to cross the street and that is useful especially at night. I think it's pretty cool to have in the car, especially if you're the type who isn't the best driver around. Maybe one who gets distracted easily while on their phone, doesn't pay attention, has a hard time seeing at night. Or if you are those kind you shouldn't be driving!! Haha J/K, you know what I mean. Technology keeps improving everyday no matter what. There's always going to be something better.
Yet, when it comes to safe driving and the safety of pedestrians, do we REALLY need technology to help prevent accidents? Yes and no. I'd say yes in case of situations where you are blindsided by an oncoming car and it T-bones you and with pedestrians running across the street at night. But then again I don't think we should depend on these because we shouldn't have devices to help control the safety of others when drivers really do have the capability to drive safely. If they don't, they shouldn't be driving.
Video: http://www.cnn.com/video/#/video/tech/2007/11/27/lah.crash.proof.cars.cnn
Nope. Think again.
There are cars with a built-in sensor device which can sense if you're going to run a red light and the car will automatically brake for you and it can also alert the driver if a pedestrian is about to cross the street and that is useful especially at night. I think it's pretty cool to have in the car, especially if you're the type who isn't the best driver around. Maybe one who gets distracted easily while on their phone, doesn't pay attention, has a hard time seeing at night. Or if you are those kind you shouldn't be driving!! Haha J/K, you know what I mean. Technology keeps improving everyday no matter what. There's always going to be something better.
Yet, when it comes to safe driving and the safety of pedestrians, do we REALLY need technology to help prevent accidents? Yes and no. I'd say yes in case of situations where you are blindsided by an oncoming car and it T-bones you and with pedestrians running across the street at night. But then again I don't think we should depend on these because we shouldn't have devices to help control the safety of others when drivers really do have the capability to drive safely. If they don't, they shouldn't be driving.
Video: http://www.cnn.com/video/#/video/tech/2007/11/27/lah.crash.proof.cars.cnn
Firefox Users
There is a new version released for the Mozilla Firefox browser. This version has fixed three security issues, which could be found on their website. Although this version was intended to protect users, additional issues were found. According to the article, there are two cross-site request forgeries, "which can be used to steal personal information while visiting certain sites, and one concerns memory corruption."
I think this is something to be concerned about especially if you are a Mozilla Firefox user. I personally use it myself because I think it's better than Internet Explorer. However, at the same time I need to be aware of updates that I'm allowing to install and understand what potential risks come with it.
Article: http://www.news.com/8301-10784_3-9823744-7.html?tag=cd.blog
I think this is something to be concerned about especially if you are a Mozilla Firefox user. I personally use it myself because I think it's better than Internet Explorer. However, at the same time I need to be aware of updates that I'm allowing to install and understand what potential risks come with it.
Article: http://www.news.com/8301-10784_3-9823744-7.html?tag=cd.blog
Microsoft Sued Over Halo 3's 'Consistent' Crashes
Video games are meant to bring joy to those who play them. This isn't the case for one local San Diego resident who is suing Microsoft over problems he's facing with Halo 3. Apparently Randy Nunez's copy of Halo 3 is causing his system to lock up, freeze and crash. One would think that a game developer would make sure its product worked properly before sending it out to mass production. If they were truly at fault, then they should have to make the situation right. I don't know if huge sums of money is the answer, but some ratification is in need.
http://tech.yahoo.com/news/cmp/204204135
http://tech.yahoo.com/news/cmp/204204135
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