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Pipeless API
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>>> print(whoSaid("OlderFriend"))
About 20ish years ago I was working in IT, and it was about around this time where CD-Roms were hitting the stores and becoming the newest craze. However, Microsoft did not write the drivers correctly for this new hardware.
In a nutshell, the driver would be installed and the user would lose the sound to their speaker.
How did this happen? By altering the way the interrupts worked on the computer. At the time there only existed a few unreserved IRQs or Interrupt ReQuests. The installer package would redirect IRQ 5 which is "User Selectable (Sound Cards)" to work with the CD-Rom. This was fine and all unless you wanted to listen to your speakers.
I had come up with a clever hack through rewriting a config file that would be run during bootup. So at the time of boot up IRQ 5 would be dedicated to the sound card, and IRQ7 (which was usually for the Lpt1 Printer) would be dedicated to the CD-Rom. This worked.
And because I was IT at the time, I would get a lot of calls for fixing this problem.
So, as you can imagine, I've gotten **really** good at doing this. I didn't even need to be at a computer to walk someone through the problem.
I receive a call one day, it was a problem with the CD-Rom and sound card. I walk him through the problem and he reboots his computer. I could hear him on the other side jumping with joy when he was able to put in his music CD and hear sound coming from the speakers.
He asks me, how in the hell did you figure this out!? You're a fucking Genius!
And I said, It's not rocket science it's just a computer.
There was a long pause of silence.
Uhhh... Hello? Did I say something wrong?
Sir, I work at NASA I deal with Rocket Science on a daily basis.
4 -
1 - Please hack his/her facebook account for me.
2 - (at home) I used to block wifi access by mac filtering and if there's legit server down and wifi isn't working, everyone blames me.
(I am freelancer and mostly work from home)
3 - almost all of my relatives think I don't work.
4 - I am first choice for everyone's phone, PC and hardware repair.
This one is classic
GET A REAL JOB, you need to go out in the field for work.5 -
Hacking my first diskette reader... And I stuck gol... Cofcof copper coils...
This is actually fun... And the structure is pure aluminum :p
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Since my first post was a success, here's another shameless hack-- in this case, ripping a "closed" database I don't usually have access to and making a copy in MySQL for productivity purposes. That was at a former job as an IT guy at a hardware store, think Lowes/Rona.
We had an old SCO Unix server hosting Informix SQL (curious, anyone here touched iSQL?), which has terminal only forms for the users to handle data, and has keybindings that are strangely vi based (ESC does commit changes. Mindfsck for the users!). To add new price changes to our products, this results to a lengthy procedure inside a terminal form (with ascii borders!) with a few required fields, which makes this rather long. Sadly, only I and a colleague had access to price changes.
Introducing a manager who asks a price change for a brand- not a single product, but the whole product line of a brand we sell. Oh and, those price changes ends later after the weekend (twice the work, back at regular price!)
The usual process is that they send me a price change request Excel document with all the item codes along with the new prices. However, being non technical, those managers write EVERYTHING at hand, cell by cell (code, product name, cost, new price, etc), sometimes just copy pasted from a terminal window
So when the manager asked me to change all those prices, I thought "That's the last time I manually enter all of this sh!t- and so does he". Since I already have a MySQL copy of the items & actual (live) price tables, I wrote a PHP backend to provide a basic API to be consumed to a now VBA enhanced Excel sheet.
This VBA Excel sheet had additional options like calculating a new price based on user provided choices ("Lower price by x $ or x %, but stay above cost by x $ or x %"), so the user could simply write back to back every item codes and the VBA Excel sheet will fetch & display automatically all relevant infos, and calculate a new price if it's a 20% price cut for example.
So when the managers started using that VBA sheet, I had also hidden a button which simply generate all SQL inserts for the prices written in the form, including a "back to regular price" if the user specified an end date, etc.
No more manual form entry for me, no more keyboard pecking for the managers with new prices calculated for them. It was a win/win :)1 -
Time for a rant about shitstaind, suspend/hibernate, and if there's room for it at the end probably swappiness, and Windows' way of dealing with this.
So yesterday I wanted to suspend my laptop like usual, to get those goddamn fans to shut up when I'm sleeping. Shitstaind.. pinnacle of init systems.. nope, couldn't do it. Hibernation on the other hand, no problem mate! So I hibernated the laptop and resumed it just now. I'm baffled by this.
I'll oversimplify a bit here (but feel free to comment how there's more to it regardless) but basically with suspend you keep your memory active as well as some blinkenlights, and everything else goes down. Simple enough.. except ACPI and I will not get into that here, curse those foul lands of ACPI.
With hibernation you do exactly the same, but on top of that, you also resume the system after suspending it, and freeze it. While frozen, you send all the memory contents to the designated swap file/partition. Regarding the size of the swap file, it only needs to be big enough to fit the memory that's currently in use. So in a 16GB RAM system with 8GB swap, as long as your used memory is under 8GB, no problem! It will fit. After you've moved all the memory into swap, you can shut down the entire system.
Now here's the problem with how shitstaind handled this... It's blatantly obvious that hibernation is an extension of suspend (sometimes called S3, see e.g. https://wiki.ubuntu.com/Kernel/...) and that therefore the hibernation shouldn't have been possible either. The pinnacle of init systems.. can't even suspend a system, yet it can hibernate it. Shitstaind sure works in mysterious ways!
On Windows people would say it's a hardware issue though, so let's talk a bit about that clusterfuck too. And I'll even give you a life hack that saves 30GB of storage on your Windows system!
Now I use Windows 7 only, next to my Linux systems. Reason for it is it's the least fucked up version of Windows in my opinion, and while it's falling apart in terms of web browsing (not that you should on an EOL system), it's good enough for le games. With that out of the way... So when you install Windows, you'll find that out of the box it uses around 40GB of storage. Fairly substantial, and only ~12GB of it is actually system data. The other 30-ish GB are used by a hibernation file (size of your RAM, in C:\hiberfil.sys) and the page file (C:\pagefile.sys, and a little less than your total RAM.. don't ask me why). Disable both of those and on a 16GB RAM system, you'll save around 30GB storage. You can thank me later.
What I find strange though is that aside from this obscene amount of consumed storage, is that the pagefile and hibernation file are handled differently. In Linux both of those are handled by the swap, and it's easy to see why. Both are enabled by the concept of virtual memory. When hibernating, the "real" memory locations are simply being changed to those within swap. And what is the pagefile? Yep.. virtual memory. It's one thing to take an obscene amount of storage, but only Windows would go the extra mile and do it twice. Must be a hardware issue as well.
Oh, and swappiness. This is a concept that many Linux users seem to misunderstand. Intuitively you'd think that the swappiness determines what percentage of memory it takes for the kernel to start swapping, but this is not true. Instead, it's a ratio of sorts that the kernel uses when determining how important the memory and swap are. Each bit of memory has a chance to be put into either depending on the likelihood of it being used soon after, and with the swappiness you're tuning this likelihood to be either in favor of memory or swap. This is why a swappiness of 60 is default most of the time, because both are roughly equally important, and swap being on disk is already taken into account. When your system is swapping only and exactly the memory that's unlikely to be used again, you know you've succeeded. And even on large memory systems, having some swap is usually not a bad idea. Although I'd definitely recommend putting it on SSD in a partition, so that there's no filesystem overhead and so that it's still sufficiently fast, even when several GB of memory are being dumped in.6 -
!rant
I was propably 15 years old the first time i saw my friend coding html and and other related stuff i cannot remember! It intriqued me and i really wanted to learn it (i wanted to learn to hack.. xD..) but at the given time i wasn't happy in life and i was pretty much addicted to WoW..
So.. forward 12 years, where i had gone to the military, thought about becoming a physiotherapist, psychiatrist, korean translator and game designer.. oh and countless attempts from another friend to get me interested in c#.. i decided to start studying computers (software/hardware) at DTU (danish university).
That was rougly 8-9 months ago and i am now pretty decent in C, HTML, C++, Java, MySQL and koncepts about networks and OOP designs :).
I am super grateful to all the trial and errors throughout my life that have brought me to this place :)
Still 27, still has alot to learn, but i am really happy where i am right now. Even so, that i am spending my free time making my own projects :)
I also get super happy whenever i fix a bug of mine :p.
I truly believe that you will skyrocket to succes if you do what you love.
For me, i just discovered that part of myself a little late :)
Not sure what i hope to achieve with this post, but i hope it can give an insight into what people go through and yeah.. go for what you want!
Have a great time everyone!
And first !rant on this app!
I love all your rants! vs !rants4 -
I got to thinking it might be nice to have my own personal fingerprint reader. I could carry it with me and hook to my work computer for tasks such as sudo and login. At home I could login. I figured there ought to be some nice cross platform devices... Oh hell fuck no. Its all Windows shit. Most of them say windows 10 and usually say don't work on Linux, Mac, or Android.
So I think I am going to hack my own:
https://amazon.com/FlashTree-Optica...=
https://amazon.com/Seeeduino-Smalle...==
I have a 3d printer that I can use to enclose this and make it look nice and personalized. I can embed any kind of functionality I want to make this work.
Manufacturers: STOP MAKING SHITTY WINDOWS ONLY HARDWARE!7 -
What are some of you favorite tools from your toolset? be it software, hardware, some plugin or even some hack you use often19
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Electronic companies nowadays are no different than ranchers that force their slaves to earn money to buy new stuff cause people can’t repair old electronics or fix software bugs cause it’s not theirs or it’s not maintained and source code is not existent.
Damn you software and hardware corporations.
You tell everyone that you care about environment, yet you don’t fucking support your software and hardware as long as people use it. When you stop support you don’t make everything open source but keep it on your private repositories as intellectual property and fuck your clients.
Literally all electronics and software should be mandatory made open source to the people who purchased product so they can use it as long as they want not as long as corporate assholes want. This is insane law that is splitting our world and making it burn. If I could fix my laptop in nearby shop I wouldn’t have to purchase new one.
If it won’t change we will end up with <10 corporations that would rule world economy, everyone who will work for those corporations will be rich and happy and everyone else will be poor and unhappy . Mind me if this is not already happening and this planet slowly becomes Elysium movie nightmare.
Stop buying new stuff you stupid people cause this make things worse.
If it won’t change in 10 or so years there will be connected to cloud robots all over the world guarding us and some dick shit rich John Conor kid will hack them to exterminate humans by executing order 66. After that there will be big power outage that will put us into the role of battery and we would be closed in the barrel full of pink shit connected to matrix.
Get me out of here you asshole.1 -
Anyone knows how to start a hard drive without power supply?
I'm hacking a few old disks and don't want to use a full power supply7
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