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Search - "transistor"
Not my mom, but my girlfriends grandmother. I told her that I am a software developer, a guy who makes the programs which run on computers.
She became really excited about that, because finally she found someone to repair her 40-year-old radio. I told her that I have no fucking idea about radios, but she did not want to hear that. So I looked at the case, randomly pushed some buttons and again told her, that I could not find the broken part, let alone repair it. But she didn't listen and told me to open the case and look inside.
Sighingly I opened the radio, looked at the inner parts and told her once more, that I don't know anything about this stuff. She told me to look more closely. About to lose my mind about this pointless task, I finally told her, that "the transistor" is the problem and that the best thing she could do is to throw it away and buy a new radio. She was happy with that answer.20
Yet another rant about crappy electronic designs.
Just now I was cleaning my desk and stumbled upon some old hard drive in a caddy that I still had laying around.. I figured, let's plug it in and see whether the drive still works. And to some extent, it does! Except that every few minutes it craps out on me. And after disassembling the caddy, I think that I know why.
Just as background information, hard drives work at 12V and generally require about 10W to spin their motor. Meanwhile USB operates at 5V. So a boost converter needs to be present in the controller to step up the voltage and power the drive.
Now what's a boost converter? It's an inductor, a capacitor, a transistor and a diode in a specific arrangement (if you're interested in the design, check out https://youtube.com/watch/...), along with feedback circuitry to stabilize output voltage. Now that transistor is important.. it switches at very high frequency, and its rise and fall times create heat. In the particular transistor used in that controller, it apparently causes the transistor to operate at 65-68°C. That's quite toasty IMO, and overheating may be why the controller is so unstable. But the Chinese manufacturers thought that it's just fine and okay to be sold without heatsink or some research into transistors with better rise and fall times.
So the hard drive craps out on me and yet again it's because of certified shitdesigns. MOTHERFUCKTURERS!!!!27
Im so frustrated with myself . I've always been afraid of being stupid . Perhaps it was because i was always called the "less intelligent" sibling by my parents . Well i did self-learn java , c++ and android (when i was 15) and made some apps and i did get acknowledged finally but i may have not acknowledged myself . I got into college a couple years ago and i can tell you right out that its like an island filled with stupidity. The teachers , the students. The other day i caught my teacher learning how a transistor works. This is unacceptable for someone who is teaching us advanced op-amps and other circuits . Well , I did get into this college cause it was less tedious and i thought college doesn't matter cause i can self-learn . All i needed was free time . Well college totally destroyed that too and provided no facilities in the process as well . So yeah should i blame my college for my inability to do things the past couple years. I mean i don't think i've learnt a single thing all this while. This is where my frustration begins cause i dont want to blame the college , it's not going to help me and i'll probably end up in a 9 to 5 call center job at this rate . Im also very heavily frustrated with myself , it's like everything i've done so far has been a path of least effort. I have tried a few things which were all just fads like machine learning and crypto and even trading . They felt good and thats what scares me , maybe i don't have the passion and am just looking for a quick buck . This is clearly reflected in the ideas i've been having as well . Well i've never had access to proper funds but now im just trying to justify this layman emotion . I just want to learn and be passionate about learning , researching and i just want enough funds for that . But im afraid , maybe its just that i want to feel superior than my circle . I mean i still don't know why i tried learning rust and wasted even more time setting up fedora and everything around it while i already had a working debian setup and a programming language i'm kind of versed with . i wouldn't say well cause im a self learner and i feel guilty for that . I definitely know i just learnt the surface of the language . Deep down i'm just another stupid fad obsessed guy who feels better by choosing a more complex language that my colleagues look upto . Is this what i am , if so im scared and i don't know what to do . People say that you are what you are and you cant change that . If i cant change this then i dont deserve this wasteful stupid life . I don't know what i should do and it makes me cry . Maybe acknowledging this would've helped but it hasn't , I've felt better playing fortnite rather than learning some basic electronics. Im another one of those aren't I ?17
Ooh come on .... The fluecent tube of our bathroom mirror was broken. So my girlfriend bought a new one. Still didn't work. So it must be the starters. Nope they work. So I took the damn thing apart completely and ripped out the PCB and meassured every transistor, diode and capacitor. And even replaced one that gave some fishy values just in case. Still didn't work. Then I opened the side door of this mirror and found a switch that I must have switched off by accident ... Switched on: lights on 🤔🤗😌2
So I'm taking embedded systems subject in my masters course. They have mixed this subject's content with electrical engineering and I'm a computer science graduate. Everything was perfect until I reached to GPIO board.
Wtf is this shit?
Why it has so many holes and what are they for?
What I'm supposed to do with it?
What is ground? Transistor?
Why I'm connecting to two pins only instead of the 4 pins of a button?
Thanks to pi4j i think i will pass the subject!2
music, and ranting against youtube for their weird autoplay features. How in the world can they go from Korn - Twisted transistor to Bonjovi ????
Beer at night, that really helps me, except after the 4th, i start to make shit code, and read devrant even more xD
I read the other day that tech companies are trying and failing to make chips smaller and faster by reducing transistor size.
Yet Apple does this with ease. You know how?
They remove or REDUCE the number of transistors to make it smaller.2
The Transistor: a 1953 documentary, anticipating its coming impact on technology:
this is a 9min. short8
Fuck, I hate moving. All the tearing down and subsequent assembly takes sooo bloody long. And you have to be extra careful not to destroy all your (no so) cheap IKEA furniture when taking off the screws and nails. ~Lê stupid me didn't think he'd have to disassemble this stuff, so I actually used nails. D'oh. So now I have some splintered wood. Congrats, you cockwomble. Good luck repairing that.
I'll use screws (torx head, of course) when reassembling though, not making the same mistake again.
Oh, and then there's all the dust and cobwebs and fucking spiders living under the furniture, because I can't tilt my wardrobe to vacuum underneath it. Just. Fucking. Lovely.
On the upside, I get to do an early spring cleaning on all my accumulated trash. New apartment is gonna be so clean and minimal, you'd mistake it for a monastic meditation room. With a pair of monitors and my beautiful desktop to the side. Meditation is lovely, but I also pray to the silicon and transistor gods. Need mah tech shrine.2
I was watching an Ancient Aliens episode called "Beyond Roswell". The show described the idea of some of our tech being seeded slowly by introducing alien technology to specific companies. They suggested that computing technology has advanced very fast and introducing this tech could be part of that.
At first I was kinda pissed about this. I have read about the creation of the first transistor back in the 40s or 50s. WWII really advanced our need for computing devices such as what Turing built. Then I realized a lot of the explosion of computer tech did occur after key ET events. This kind of made me wonder how much is "us" and how much is ET tech. I also realized it can take a lot of effort to understand something really advanced. So reverse engineering can take a LOT of effort to figure these things out. Being seeded by external tech does not take away from humans at all.
A parallel to this is a programmer that learns how to use a C++ compiler. They could go their whole career without ever understanding how the compiler itself is doing its job. I find myself wanting to learn how compilers work and started down this path. I look at the simple grammar I have learned to parse. Then I look at the C++ grammar and think "How can I ever learn to do that?" So I see us viewing potentially advanced things and wondering how the heck can we ever learn to do that. The common reaction when faced with such tech would be disbelief and in some cases ridiculing the messenger. When I was a kid the idea of sending a picture over a phone was laughable. Now this is common and expected. It was literally a scifi concept when I was a kid.
So, back to the alien tech. I am now thinking it would be cool to be working with alien technology through computing. This is like scifi stuff now! So what if what we have was not all invented here (Earth). If anything this will prepare us programmers to get jobs working for alien corporations writing ship level programs and brain interfaces. Think of it as intergalactic resume building. 😉