Obfuscated code is source code that is (perhaps intentionally) very hard to read and understand. Some languages are more prone to obfuscation than others. C, C++ and Perl are most often cited as easily obfuscatable languages. Macro preprocessors are often used to create hard to read code by masking the standard language syntax and grammar from the main body of code. The term shrouded code has also been used.[Source]
Friday, September 29, 2006
Obfuscate
I came acrosss a new word Obsfuscate while reading Kathy Sierra's Book. Haha there is a note from the author asking the reader to look up the word and email back the author. It is on the page 296. I googled with the keyword "define obfuscate". One of the definition which definitely that I am looking is:
Thursday, September 28, 2006
Olympus
Olympus Mons or Nix Olympica is the tallest mountain in our solar system located at Planet Mars. Click to Google Mars Map
It is about three times the height of Mount Everest from sea level and 2.6 times higher than Maune Kea which a dormant volcano locate the Hawaiian Island measured from the base. [Source]
Talking about Olympus, I saw advertisement on two latest Digital Camera from Olympus in theStar newspaper. FE-190 and FE-180 both priced at RM 899 and RM 599. I would love to have FE-190 because it has a sleek and slim metal constructed body measured at 0.7 inches. This six megapixels digital camera features Digital Image Stablization, 2.5 inches LCD screen, built-in help guide and comes with Li-Ion Rechargeable Battery.
Hahahaha, I still have problem in implementing the instant Throughput. Ok, instant throughput is total bits divided by interval time. This methods that I did was based on the instantThroughput.awk script obtained from the Internet. I ran the network simulation with one mobile node moving around but the throughput is constantly at 30 kbps. The funny thing is still at 30 kbps when there are many mobile node during the simulation. I think the reason why this is happening because of the constant packet size, data rate is constant due to the application is pumping a constant bit rate and no variable delay. The simpler reasons are bugs in the code or the person who wrote the code. That's me. haha
MIRAI-SF3.1 does not have any application that uses a bit rate parameter for its interval calculation but MIRAI-SF4.1 does have constant bit rate application. I just need to make a little adjustment to the source code and then integrate into MIRAI-SF3.1. In additon, I need create some applications that generate variable data rate using exponential and pareto distribution. I just need to take a look at NS-2 source code and enhanced the source code in MIRAI-SF3.1.
Olympus Mons (Latin, "Mount Olympus") is the tallest known mountain in our solar system, located on the planet Mars at approximately 18° N 133° W. Before space probes revealed its identity as a mountain, Olympus Mons was known to astronomers as the albedo feature, Nix Olympica ("Snows of Olympus").
It is about three times the height of Mount Everest from sea level and 2.6 times higher than Maune Kea which a dormant volcano locate the Hawaiian Island measured from the base. [Source]
Talking about Olympus, I saw advertisement on two latest Digital Camera from Olympus in theStar newspaper. FE-190 and FE-180 both priced at RM 899 and RM 599. I would love to have FE-190 because it has a sleek and slim metal constructed body measured at 0.7 inches. This six megapixels digital camera features Digital Image Stablization, 2.5 inches LCD screen, built-in help guide and comes with Li-Ion Rechargeable Battery.
Hahahaha, I still have problem in implementing the instant Throughput. Ok, instant throughput is total bits divided by interval time. This methods that I did was based on the instantThroughput.awk script obtained from the Internet. I ran the network simulation with one mobile node moving around but the throughput is constantly at 30 kbps. The funny thing is still at 30 kbps when there are many mobile node during the simulation. I think the reason why this is happening because of the constant packet size, data rate is constant due to the application is pumping a constant bit rate and no variable delay. The simpler reasons are bugs in the code or the person who wrote the code. That's me. haha
MIRAI-SF3.1 does not have any application that uses a bit rate parameter for its interval calculation but MIRAI-SF4.1 does have constant bit rate application. I just need to make a little adjustment to the source code and then integrate into MIRAI-SF3.1. In additon, I need create some applications that generate variable data rate using exponential and pareto distribution. I just need to take a look at NS-2 source code and enhanced the source code in MIRAI-SF3.1.
Friday, September 22, 2006
KingMax USB FLash
Have you ever experienced when your favourite USB thumb drive or flash drive failed? I have two thumb drives which are 64MB and 128MB. The 64MB carries an APACER brand which cost about RM 120 in 2003. Today, the prices for USB flash drive are getting cheaper. I apparently ‘stole’ the 128MB from my dad’s collection of USB drives.
Unfortunately, two days ago my dad’s KINGMAX USB drive just failed. The light indicator stops blinking and no matter how much I banged it against the surface of my desk and threw against the wall. The blue and black USB flash drive just stops working. All the important data are lost. I remembered when my room mate accidentally had his USB thumb drive wash in a washing machine. Luckily, the APACER USB flash drive stills work after he dismantled and dried.
So far I have some experience in using OMNET++, NS-2 and MIRAI-SF which is based on SSFnet network simulator. You can find more information on the simulators by using the google search. I just found out there is a commercial of OMNET++ called OMNEST.
Unfortunately, two days ago my dad’s KINGMAX USB drive just failed. The light indicator stops blinking and no matter how much I banged it against the surface of my desk and threw against the wall. The blue and black USB flash drive just stops working. All the important data are lost. I remembered when my room mate accidentally had his USB thumb drive wash in a washing machine. Luckily, the APACER USB flash drive stills work after he dismantled and dried.
So far I have some experience in using OMNET++, NS-2 and MIRAI-SF which is based on SSFnet network simulator. You can find more information on the simulators by using the google search. I just found out there is a commercial of OMNET++ called OMNEST.
Thursday, September 21, 2006
Canon DigiCam
A digital cameral is another cool gadget on my wish list. I'm looking for a camera that is under RM 1000. Steves Digicams website reviewed Canon PowerShot A540 features six megapixels resolution and 4x optical zoom. CNET rated as 7.6 out of 10. There is a CNET Video review which you can watch and gauge how big the camera is. Canon Powershot A540 has optional accessories such as Underwater casing that you can purchased. It is priced at RM 888.
In the previous post, I did mentioned that I implementing a method to measure the throughput on certain interval of time. Well, I'm still doing it and I'm stuck. I can not seem to get the method working to my preference. Ideas please come to me. MIRAI-SF network simulator has some codes which has similar concept but it is calculater based on how many packets are passed through a node on certain interval.
In the previous post, I did mentioned that I implementing a method to measure the throughput on certain interval of time. Well, I'm still doing it and I'm stuck. I can not seem to get the method working to my preference. Ideas please come to me. MIRAI-SF network simulator has some codes which has similar concept but it is calculater based on how many packets are passed through a node on certain interval.
Wednesday, September 20, 2006
Free Laptop
Anyone of you want to give their for free? I received forwarded email saying that there is a marketing company in Canada would give an Acer notebook for free. I think have received similar email not so long time ago. All you have to do is register with their web. It's a hoax. Who would want to give a mobile pc for free. Click here!
I bet that website would just want to collect emails so they can spam peoples' inbox with stupid advertisements.
Anyway, my dad is thinking of buying an entry level Acer notebook. I checked the price list at lowyat.net which is quoted at RM 2199 with a Linux OS.
I used to play around with Knoppix which is an OS runs from your CD-ROM drive. You would need at least 256Mbytes of random access memory. Once the OS is loaded, you could access all the partition of Windows's Hard Drive.In addition, you could even connect to the Internet or join the local area network. Cool eh. Go and download the *.iso disk image and burn it onto a cd.
I bet that website would just want to collect emails so they can spam peoples' inbox with stupid advertisements.
Anyway, my dad is thinking of buying an entry level Acer notebook. I checked the price list at lowyat.net which is quoted at RM 2199 with a Linux OS.
I used to play around with Knoppix which is an OS runs from your CD-ROM drive. You would need at least 256Mbytes of random access memory. Once the OS is loaded, you could access all the partition of Windows's Hard Drive.In addition, you could even connect to the Internet or join the local area network. Cool eh. Go and download the *.iso disk image and burn it onto a cd.
Tuesday, September 19, 2006
'akashah on the world map
Haha gotcha, I'm still in Malaysia lah!. I was surprised that when I googled and found that `Akashah is located in Northern Sudan, Afrika. Click `Akashah google map. :P
An update of my work. I'm still in the progress implementing a method to measure the throughput of the packets when the 3g base station is transmitting the packets to mobile node. The packets is actually had been traced in the log file. The problem is that I have still have to do some simple script to calculate the throughtput. It would save some time and memory space if I implements directly into the code.
I have some problem with queue. I still thinking how I'm going to integrate the simulator. Right now, I have no idea. I stumbled upon which explained the modelling of queue. I have got time to read it yet.
An update of my work. I'm still in the progress implementing a method to measure the throughput of the packets when the 3g base station is transmitting the packets to mobile node. The packets is actually had been traced in the log file. The problem is that I have still have to do some simple script to calculate the throughtput. It would save some time and memory space if I implements directly into the code.
I have some problem with queue. I still thinking how I'm going to integrate the simulator. Right now, I have no idea. I stumbled upon which explained the modelling of queue. I have got time to read it yet.
Monday, September 18, 2006
Broadband BandWagon
Currently, I'm on 512kbps TMnet Streamyx which I pay for RM 66 per month which is quite reasonable compared to the TMnet 1515 dial-up service which can cost a bomb when you go online for 24 hours a day. Not to mention the 56kbps which is extremely slow.
TheStar online reported that Maxis which going to roll out High Speed Broadband for home over its 3G network. TMnet only offers maximun 1Mbps for Home user. I hope Maxis would offer a greater bandwidth than the current TMnet 1 Mbps at a reasoble price. I would be the one to be sign up. Hahaha maybe.
Maxis mentioned the Broadband service will be using HSDPA (High Speed Data Packet Access) technology. Hey, I used to research this topic before I move to Fast Handover for Mobile IP. HSDPA simulation could be simulated using ns-2 extension called EURANE. Back to the topic, So I bet we have to use a wireless Modem not like our TMnet Streamyx modem which connected to normal copper phone line. Cool!
More? Click here
TheStar online reported that Maxis which going to roll out High Speed Broadband for home over its 3G network. TMnet only offers maximun 1Mbps for Home user. I hope Maxis would offer a greater bandwidth than the current TMnet 1 Mbps at a reasoble price. I would be the one to be sign up. Hahaha maybe.
Maxis mentioned the Broadband service will be using HSDPA (High Speed Data Packet Access) technology. Hey, I used to research this topic before I move to Fast Handover for Mobile IP. HSDPA simulation could be simulated using ns-2 extension called EURANE. Back to the topic, So I bet we have to use a wireless Modem not like our TMnet Streamyx modem which connected to normal copper phone line. Cool!
More? Click here
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