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Google Suggests Separating Students With 'Some CS Knowledge' From Novices

Bengie Re:Intro CS Courses Vary by Majors at Large School (305 comments)

The beauty of intro CS classes is you don't need prior knowledge or experience. Anyone with a bit of logic should find it easy. I went into a 4 year, not much more than knowing computers work entirely on numbers. For my first experience in programming, I got dropped into a C/C++ class that dealt with datastructures and algorithms. I think I was the only one who got an A, I never studied, always finished my test 10-15 minutes before everyone else, and did my weekly programming assignments the night before.

A lot of people changed majors after that class. I found it non-challenging, with no prior programming experience, but some stuff was still important.

4 days ago
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Google Suggests Separating Students With 'Some CS Knowledge' From Novices

Bengie Re:MeritNOTcracy (305 comments)

The 101 classes at my Uni was stuff like, this is a computer, this is Excel. The 106 classes were like, this is a race condition in multithreading. You can skip the intro class that shows you how to turn on a computer, but they're not going to let you skip the other "intro" classes.

Most of the intro classes will teach you stuff that is extremely important, and you'd rarely learn on your own via experience. Most programmers critiquing each other is like the blind leading the blind. Few people in the real world will point out these mistakes and few people in the real world realize that these are mistakes. Learn the basics.

I was a freshman when I learned about SQL injection attacks and how I should never trust the client. The teacher went over many historic examples of programmers making stupid mistakes that mostly involved not validating client input. A lot of the stuff I learned in many of these early 100 level classes, many many programmers don't know about or don't care. The later wouldn't surprise me.

Every time I read about some big security flaw at some big corp web service, I think to myself, they would have failed Programming 101. Don't underestimate intro classes, unless you think your college sucks, then by all means assume the classes are a waste of time.

4 days ago
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Google Suggests Separating Students With 'Some CS Knowledge' From Novices

Bengie Re:They're a resource, not a "problem". (305 comments)

I take the hybrid approach myself. I identify the issues, come up with some solutions, note the pros and cons, bounce my ideas off my cubical mate. He adds it some ideas and thoughts, then I go back to working on my own again.

4 days ago
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Google Suggests Separating Students With 'Some CS Knowledge' From Novices

Bengie Re:Indeed (305 comments)

Based on the design of many high profile opensource programs, or big projects in general, I assume most seasoned programmers with 10+ years of programming could not test out an intro Computer Science class. CS has little to do with programming and everything to do with theory.

4 days ago
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Google Suggests Separating Students With 'Some CS Knowledge' From Novices

Bengie Re:Radical thought here (305 comments)

At some Unis, there are no "intro" classes for non-generals subjects, like CS. They assume you already have a background and jump strait into hard stuff.

4 days ago
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Google Suggests Separating Students With 'Some CS Knowledge' From Novices

Bengie Re:They're a resource, not a "problem". (305 comments)

I went to college to learn, not to teach other people or get a piece of paper that said I knew something. If I'm not learning, I want my money back.

4 days ago
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Google Suggests Separating Students With 'Some CS Knowledge' From Novices

Bengie Re:Screw you white boys (305 comments)

At my Uni, I just talked to the dept chair person and told them I already had a computer background. They signed off for my to skip some 101 classes that were otherwise required to even graduate. Maybe people need to just ask.

4 days ago
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Judge Rules Drug Maker Cannot Halt Sales of Alzheimer's Medicine

Bengie Re:Scummy (263 comments)

pharmacy is permitted to substitute a generic

This is not the issue, the issue is doctors not prescribing generics. That is the whole current issue. There are already generics for this alzheimers drug, but if the name brand goes away, then the doctors will stop writing prescriptions for that drug meaning no more generics for a drug that no longer exists. Logically, the "drug" still exists, but not the name brand version of it, and that seems to be an issue with the way the current rules for prescribing medications.

4 days ago
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Judge Rules Drug Maker Cannot Halt Sales of Alzheimer's Medicine

Bengie Re:Scummy (263 comments)

Yes, it says pharmacists may substitute. I've never had a doctor prescribe a generic. Notice all of the wording is about substitution of the brand-name drug, but never does it talk about prescribing generics.

4 days ago
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Judge Rules Drug Maker Cannot Halt Sales of Alzheimer's Medicine

Bengie Re:Can you say... (263 comments)

-by using taxpayer dollars to implicitly insure the uninsured who use an ER, while leaving the rest of the system alone?

It's cheaper to treat the issue before to go to the ER. The ER is about 10x more expensive than just letting them see the doctor in the first place. Since they can't afford a normal doctor, then tax payers still foot the bill, but now it's 10x higher.

4 days ago
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Judge Rules Drug Maker Cannot Halt Sales of Alzheimer's Medicine

Bengie Re:I don't get it... (263 comments)

as I can tell, manufacturers are free to manufacture the generic, doctors are free to prescribe it and patients are free to take it.

According to the lawsuit, in some areas, doctors are not free to prescribe generics, but a generic may be substituted at the pharmacy. If the name-brand version of the drug does not exist, then that drug may not be prescribed, meaning the generic versions may not be substituted.

While I've never thought of this before, now that I look at it, I've never had my doctor prescribe a generic drug for me before. Always a name brand, and then the doctor would tell me I could also ask for a generic at the pharmacy if I wanted. My prescriptions were always for Adderall, even though I told my doctor my insurance did not cover it. When I went to the pharmacy, I would ask for them to give me the generic version, which is just some brand of dextroamphetamine.

At no point did I ever think my doctor was not allowed to directly prescribe just "dextroamphetamine".

5 days ago
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Judge Rules Drug Maker Cannot Halt Sales of Alzheimer's Medicine

Bengie Re:Scummy (263 comments)

According to the article, the issue is that doctors in many areas are not allowed to prescribe generics directly. They must prescribe the name brand, and a generic may be substituted if it is identical to the name brand. In this case, the name brand would no longer be offered, meaning the generics may no longer be offered.

Sounds like big drug makers lobbied to have these stupid rules made, and because of the rules, we have technical issues that could harm patients if a name-brand suddenly pulled a drug from the market. It's much easier to force a company to keep producing drugs than it is to change decades of medical rules.

5 days ago
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Judge Rules Drug Maker Cannot Halt Sales of Alzheimer's Medicine

Bengie Re:Can you say... (263 comments)

Are you saying healthcare should be handled by the government because healthcare is not always profitable?

Not to mention that the concept of private healthcare is logically flawed in a free market. The typical person creates much more value than the amount they are paid. A person dying will cost the economy a lot more than the loss of their wage.

5 days ago
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Congress Passes Bill Allowing Warrantless Forfeiture of Private Communications

Bengie Re:PRIVATE encryption of everything just became... (379 comments)

is too difficult to decipher except for the most powerful computer systems.

What fantastic computers do you know about that are able to break AES 256? Has a current strength of about 2^254.4. I'll round to 2^254. That means if you have 100 trillion computers, each doing 100 trillion operations per second, it would take 90,000,000,000,000,000,000,000,000,000,000,000,000,000 years to break one key.

If you had a theoretically perfectly efficient computer, it was described that attempting to break AES 256 would require converting our entire Sun's mass into pure energy, and then some. Since we do not live in a world with perfectly efficient computers, it's more along the lines that we'd have to convert the entire Milky Way into pure energy.

I think galaxy destroying energy consumption is still beyond the abilities of our government.

about a week ago
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Congress Passes Bill Allowing Warrantless Forfeiture of Private Communications

Bengie Re:PRIVATE encryption of everything just became... (379 comments)

I forgot to add, if you were able to access 38 trillion terabytes of data that was all encrypted with the same key, you could possibly figure out the key for 128bit.

about a week ago
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Congress Passes Bill Allowing Warrantless Forfeiture of Private Communications

Bengie Re:PRIVATE encryption of everything just became... (379 comments)

I think currently AES 128 is broken down to 2^126, with an average break time of 2^125. You're saying you can churn though 4.25*10^37 operations on your laptop? Assuming you have an 8 core 10ghz CPU, and assuming all operations take 1 cycle, it would take 16,859,817,298,134,397,170 years on average. Do you know something about AES that we don't know?

about a week ago
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BitTorrent Launches Project Maelstrom, the First Torrent-Based Browser

Bengie Re:Imagining torrented streaming (67 comments)

This shouldn't be used to replace normal web browsing, but to help augment it. The web server can always been around to seed the data.

about a week ago
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BitTorrent Launches Project Maelstrom, the First Torrent-Based Browser

Bengie Re:Imagining torrented streaming (67 comments)

Optimally, there would be a notion of a few buffers. P2P works best when chunks are randomly uploaded as not to cause a bias to what data is available. Probably a primary buffer that fills and requests data sequentially, then a much larger secondary buffer that is ahead of the primary one's timeline, where it grabs random blocks.

I wonder how much data storage would be required for a base optimal viewing experience and what kind of eviction algorithm.

There are two primary types of data for web viewing. Latency sensitive small requests, like HTML/CSS/JS; And initial latency or burst sensitive, but overall low sensitivity to bandwidth and latency requirement bulk transfers like large images and video streaming.

about a week ago
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BitTorrent Launches Project Maelstrom, the First Torrent-Based Browser

Bengie Re:Interesting if done right (67 comments)

They don't entirely clash. HTTPS makes it so both a passive and active viewer cannot see what you're requesting. In theory, something like P2P could still make it so a active viewer could not see what you're downloading, but an active participant could. As long as the protocol had a way to quickly black-ball participants who falsely claimed to have data, then anyone who wanted to watch would also have to help.

about a week ago
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BitTorrent Launches Project Maelstrom, the First Torrent-Based Browser

Bengie Re:Interesting if done right (67 comments)

Parallelizing requests could help hide latency. Small requests would hurt, unless you could make many at the same time and or batch them up. If you're working with relatively static data, you could optimize the data such that many small pieces could be placed together in a single block. The same way file systems like to batch together small files to reduce the overhead of minimum block sizes.

about a week ago

Submissions

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Resolving IP to MAC address across a router

Bengie Bengie writes  |  more than 7 years ago

Bengie (1121981) writes "From what I know about networks, you can't find out the MAC of an IP across a router. At some point I stumbled across a program that does just this. The only google hits I get talk about Netbios. Being able to do this would help out IT dept because our back-up registration page pulls MAC info from our DHCP server, but the DHCP database only syncs with our back-up database every 24 hours. If we build a new computer to replace an old one, our registration page can't get the new MAC for the Wake-on-LAN info until 24 hours later. We could use netbios if we had to, but that's kind of shady and won't work for our Mac computers since they don't have netbios. Is there a way of resolving the MAC of an IP across routers?"

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