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Comment CS vs CIS (Score 1) 564

Its a common problems that seems to exist with peoples think that if it is computer related, it must be "CS". I run across this when people say they are going to take some CS courses to understand how to use some application better and then getting flustered on not finding courses they want in the CS section of a college catalog. I point out to them that they need to look under CIS and tell them that CIS are the courses dealing with computer applications where CS courses deal with computer algorithms. I try and explain this when people cross the two and at times I get a blank look back from them, they can not see the difference. The simplest explanation that seems to work with them are: CIS - how to use the programs, CS - how to make the programs.

Comment Physically demanding (Score 4, Informative) 168

Did some racing at the local level where I live and can attest to the physical demands needed to race well. I had to do a lot of running and weight lifting to build up my endurance and strength to race well. There are time I came off the race track after a 45 minute race so spent that my arms and upper body would have exhaustion tremors, unable to even operate the release to get out of the seat.

Comment Kids with Karts (Score 1) 337

I wounder how they would class the kids who learned to drive by racing Karts. Biggest problem with them though is when they get a real drivers license that they are not allowed to nerf cars on the freeways.
http://www.youtube.com/watch?v=68Cht811yNY

If you think karts as in things with the lawn mower engine that was driven around your home - here is a upper-level kart race clip.
http://www.youtube.com/watch?v=O2o--m0wsu0

Comment rule of the code (Score 3, Informative) 249

Just write good clean code that works properly first. The only time you optimize is after it has been profiled to see if there are troublesome spots. The way CPUs run and how compilers are designed, there is very little need to do optimization. Unless you have taken some serious courses of how the current CPU’s work, you efforts will mostly result in bad code that gains you nothing in respect in speed. Your time is better spent on writing CORRECT code.

The compilers are very intelligent in proper loop unrolling, rearranging branches, and moving instruction code around to keep the CPU pipeline full. They will also look for unnecessary/redundant instruction within a loop and move them to a better spot.

One of the courses I took was programming for parallelism. For extra credit, the instructor assigned a 27K x 27K matrix multiply; the person with the best time got a few extra points. A lot of the class worked hard in trying to optimize their code to get better times, I got the best time by playing with the compiler flags.

Comment Are you a business ? (Score 1) 268

If you are going to be a business, I think your going to need a better business plan first.

It almost feels like you have this great idea but have not sat down and wrote down exactly what you are going to do and how are you going to get there. Talk to the small business administration, they have people there that you should talk to first.

You have selected the hardware before finding the software that will accomplish the task.

Comment Running a few stat's (Score 1) 313

Pulled out my stat's book and did some rough calculations in estimating Proportion.
Used a population size of 58,000,000
Their point estimate of 0.116
Z(0.025) = 1.96 for a 95% confidence level (2 SD)

With a sample size of 1176, I get a error of plus/minus 1,102,000.
There would need to a sample size of 10,000 to get the error of plus/minus 570,000.

Comment Re:A bit overblown (Score 1) 790

Airplanes are not cars. A airplane has a tubular structure that can control the flexing of the fuselage, there is room for struts and spars to carry the load. A airplane does not have wheels that can lift off the road during a turn if the weight shifts wrong.

A convertible is about worst type of vehicle to try and make a race car out of. If you were to look at the side view of a convertible with the top off and the doors open, you will see front half and the back half connected together with a flat surface, the floor pan. Flexing and twisting of the frame through the floor pan alone would be difficult, the flexing would cause the weigh to shift causing bad loading on the wheels.

Comment security is not easy (Score 1) 266

Been various ways brought out so i will add my comment also.

If you are storing the files encrypted, that means you do not want others to be able to know the content; if its for some other reason you better rethink what you are doing.

In being able to search the information means that the method used has the keys to be able to open up the file and pull out information (decryption). If only you have the keys, then only you can open up the files which means a third party will not be able to (Google).

Some have put out the idea of a index that is stored along with the secured file - BAD idea! If you have any information about the contents of a encrypted file, you have just given a third party information on how to possibly get through the encryption, you have weakened the security.

I have taken enough security courses to understand that unless you get the proper education in security, you will absolutely do the wrong thing when it comes to security. In fact in trying to secure it, may result in it becoming more vulnerable.

Comment Older guy here - good for you (Score 1) 918

About to turn 54 here soon and I just got my CS degree. It would be best to get a degree earlier in life but you should get one no matter how old you are. I have always performed well in my jobs and seem to be able rise within the companies I worked in but the people with the degree always had the edge.

Going to school is a great when you are older, the other younger students do not know what to make of you. I think I helped a few of them take school a bit more serious than they would have otherwise. I was able to help a few on how to study, its surprising that so few have learned how to study.

Came out of school with a 3.9, would have been better but I got into arguments with the instructors in the philosophy (liberal arts requirements) classes.

So anyway, I am now a NCG with over 20 years experience. Makes for a great resume.

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