startrek.website

Quereller, to memes in This is why I cleverly have no RAM

For people who want to know more about the fascinating computer in the Apollo space craft.

34C3 - The Ultimate Apollo Guidance Computer Talk

Core rope memory

Moonjs: An Online Apollo Guidance Computer (AGC) Simulator

BudgetBandit,

They even had some hand-braided ram or whatever for systems that abso-fucking-luteley must not fail

mac12m99, to memes in This is why I cleverly have no RAM

Unused ram is wasted ram

Knusper,

Unused RAM practically does not exist. The OS will use it for disk caching.

Aggravationstation, to memes in Not today, sorry.

One more reason I would hate to live in America. In Britain we don’t give tips.

blackn1ght,

There’s a street food hall place in Manchester where you can only order via an app and some food businessess force you to pay a “tip” while ordering your food. Can pay 5, 10 or 15%.

Who the fuck do they think is going to willingly pay more than they have to? It’s blatantly a service charge, you don’t give tips before you’ve even ordered your food.

EmperorHenry, to memes in Not today, sorry.
@EmperorHenry@discuss.tchncs.de avatar

That tip won’t go to the person serving you anyway

jetsetdorito, to memes in This is why I cleverly have no RAM

“we put Kanto and johto on a single cartridge”

DrQuint,

Yeah, but they were reusing tilesets an-

looks at modern pokemon

Uh. You know what, you have a point.

HawlSera,

It took till Scarlet and Violet for us to get more than one region in a game

Kitikami and Unova

That’s parhetic

aplomBomb, to memes in Not today, sorry.

I don’t tip, but that’s achieved by never doing anything where tipping is expected.

danielton,

Just wait until you get a tip prompt on a self-checkout kiosk.

trashographer,

You mean robotip?

danielton,

Pretty much, but I have no idea who the tip is going to in that case. Last time it happened to me, there was no button to not leave a tip. The options were 20%, 25%, 30%, and Custom, with 25% as the default. I had to hit Custom and type 0.00.

threeduck,
@threeduck@aussie.zone avatar

I pre-ordered a pair of shoes online and the website asked for a tip.

In Australia.

Slabic, to memes in Not today, sorry.

I think I’m in the smallest minority, but I haven’t tipped in close to a decade. When people ask me why, I answer with the question "when was the last time you tipped your grocer l, fast food window attendant or the person at the hardware store that brought out your 100lbs of lumber? " answer is always never and I say exactly.

Goo_bubbs,

When was the last time you worked and didn’t get paid for it? Why do you feel like you’re justified to come to a person’s place of work and make them be at your beck and call, but you don’t think that these servants deserve their own food or livelihood?

There’s nothing intelligent or admirable about this behavior. Quite the contrary, it’s simply a disgusting lack of respect for other human beings.

lauha,

So you agree that they should be paid a living wage. I believe the employer should pay them enough, not customer to pay them on top of the already paying for the food.

Goo_bubbs,

Yes, I agree with you. They should be able to make a living wage. Unfortunately, when you refuse to tip you don’t hurt the owner. Instead, you hurt the employee.

Shush,

You do, but if no one would tip owners would compensate the employees because they must make at least minimum wage.

The fact of the matter is that owners get to pay his employees less by having customers pay for it instead. You can call it tips, but what is really is - it’s the money the employer should have gave them.

And then we can stop the entire ritual of shame and guilt where you tip just to not be judged by everyone around you for being “cheap”, even though you paid for the costs of the food you ordered.

Goo_bubbs,

Yes, it’s the money that the owner should have given them, but you’re not solving the problem by stiffing your waiter. You’re just going to make things worse for them.

Shush,

And that’s the issue - the blame is shifted to the customers. Damned if you do (enforce this terrible system), damned if you don’t (make waiters have less money).

The change need to be systematic and from the root. But it will never happen with so many just accepting the system, and so many more defending it so strongly.

Goo_bubbs,

It’s really a cultural problem, and there’s no easy solution. I certainly don’t know how to fix it. I think it would require everyone not tipping or every server everywhere demanding a higher wage.

Honestly, I hate tipping as much as the next guy. If I decide to tip someone I should be able to feel good about it, like I’m giving them a bonus, rather than feeling guilt-tripped or obligated to do it.

Unfortunately, the system is just set up in a way that sucks for both customers and employees, and the only way you can eat in a nice restaurant and not be an asshole is by tipping your server.

EveryMuffinIsNowEncrypted, to memes in This is why I cleverly have no RAM
@EveryMuffinIsNowEncrypted@lemmy.blahaj.zone avatar

People also forget that most of the actual calculations were done on paper first; the computers were basically just executing precalculated instructions.

This is the stack of code used for the navigation software for the Apollo program.

(Fun fact: standing next to it is Margaret Hamilton, director of NASA’s Software Engineering Division & the lead of the team who wrote that code.)

Quereller,

These are multiple printouts of the code. The computer did not only execute precalculated instruction. (This would be a sequencer BTW.). Try it yourself AGC.

EveryMuffinIsNowEncrypted,
@EveryMuffinIsNowEncrypted@lemmy.blahaj.zone avatar

That is pretty cool. I might try it tonight since I’m at work right now. Thanks!

Though, to be fair, I did say that most of the code was precalculated.

interolivary,
@interolivary@beehaw.org avatar

I’m not quite sure if even that is correct. The AGC, as far as I understand it, did do quite a bit of calculation on the fly and was essentially the first digital fly by wire system. It did rely on input from the crew and ground control for eg correcting its state vector etc etc, but it even has dedicated vector instructions if I recall correctly. Can’t really precompute all that much when you can’t be sure things will go to plan and you’re dealing with huge distances. It did have eg separate programs for different phases of the flight but they weren’t really precalculated as such, more like different modes that eg read input from different sensors etc etc.

The US space program was pretty big on having a human in the loop though, much more so than the Soviet one which relied more on automation and the pilot was more of a passenger in a sense, sort of a failsafe for the automatic systems.

The book Digital Apollo goes into all this this in more detail, I can highly recommend it if you’re a ginormous nerd like I am and think that computers we’ve shot into space are endlessly fascinating

EveryMuffinIsNowEncrypted,
@EveryMuffinIsNowEncrypted@lemmy.blahaj.zone avatar

I didn’t know that. Thanks for telling me! I’ll have to check out that book. It sounds fascinating. :)

interolivary,
@interolivary@beehaw.org avatar

Additional fun fact: Margaret Hamilton is the person who coined the term “software engineering”

EveryMuffinIsNowEncrypted,
@EveryMuffinIsNowEncrypted@lemmy.blahaj.zone avatar

Ooh, I didn’t know that. That is a fun fact! 😁

ShimmeringKoi, to memes in Wasn't that difficult
@ShimmeringKoi@hexbear.net avatar

bond theme kicks in

N00b22, to memes in This is why I cleverly have no RAM

Meanwhile I have 16 GBs, and I feel that I should update to 32…

dindresto,

I upgraded to 64gb last week

Mothra,
@Mothra@mander.xyz avatar

Did it work? I struggle with 32 sometimes, but I am blaming it on the software

tkk13909,

Y’all are in the double digits? I’ve only got 8 and I’m doing fine

Mothra,
@Mothra@mander.xyz avatar

You are blessed

Franzia,

The chosen one

tkk13909,

One day, I will get 12 and the world will FEAR me!

OrangeXarot,

I had fricking 4GB of ram and 2 cores in my laptop till like two months ago

neshura,
@neshura@bookwormstory.social avatar

Compute intensive stuff usually demands those levels of RAM. I know for gaming the recommendation nowadays is 16GB while 8GB are considered “works for now”. There are some games though that still benefit from more RAM (I upgraded to 32GB on my old PC for a Beta of a Sim game as it maxed out my 16GB to the point of lagging my PC)

tkk13909,

Bruh I play Minecraft with shaders on this thing. What more could a man want?

x52,

I have 32 but have never come close to using all 32 gigabytes.

Goo_bubbs,

You don’t think you’ll ever really use all 32GB at the same time until you’re running a virtual machine or two and open task manager to see that you’re consistently using over 82% of your RAM, which happened to me today.

567PrimeMover, to memes in This is why I cleverly have no RAM
@567PrimeMover@kbin.social avatar

Fun fact: It's a much simpler job to guide a vehicle to a planetary body than it is to render a webpage with a flat theme.

Source: It came to me in a dream

GuybrushThreepwo0d,

Well… You need like what, 3 floats for position and 4 more for orientation. Multiply that by 3 to get velocity and acceleration values. Then I don’t know a few more floats per sensor and you have your whole state space in a few bytes.

Meanwhile a single image is like a megabyte so yeah.

Source: it’s past midnight and I should have gone to sleep ages ago

Gormadt,
@Gormadt@lemmy.blahaj.zone avatar

And don’t forget about redundancies

The programming for the Apollo program was hand woven so comparing it to modern systems is kinda like comparing apples to oranges

Honestly the computers for the Apollo program were amazing and I highly recommend looking into the whole thing more, it’s so incredibly cool

johnthedoe, to memes in Not today, sorry.

This is very occasionally popping up in restaurants in Australia. Whether you live here or travelling. Do not tip unless they did something incredible. I’m talking the fish brought your grandma back to life and the chef reconnected you with your long lost father. We don’t want to encourage tipping culture. We want to increase minimum wage. It’s like $23 now and we need that to keep growing with the economy.

PM_ME_FEET_PICS,

Fight it.

It’s bled into Canada like that as well and now it’s an expected thing in food service.

Cabs ask for tip here now. We have Pizza Delight out here with mandatory 15% tip after tax on thier buffet.

AeroLemming,

mandatory

Y’all ain’t got any hidden charges laws?

xusontha, to risa in Captains Prerogative
JCreazy, to memes in Not today, sorry.

It gets easier the more you do it. Don’t feel bad for not giving away the money you own.

mrgreyeyes, to memes in And video games made me a monsterfucker

Judy Hopps and her fat ass. They knew what they were drawing.

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