Why CTRL ALT DEL? [Byte Size] | Nostalgia Nerd
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- CTRL ALT DELETE. Now there's a key combination we're almost all familiar with. CTRL-ALT-DEL (or the three finger salute as it's known) used to instantly restart your computer, which was useful when an application crashed or you just wanted to clear your memory and start all over again. CTRL ALT DELETE would go on to be used for login and task management purposes under Windows protected mode, and it's been with us ever since.
I've created this video after noticing some news stories about Bill Gates considering the key combination a mistake (www.independent..., so this is a quick exploration of how CTRL ALT DELETE came to be, and how it evolved from an instant reset combination to Windows Task Management and a Windows NT SAK.
“I may have invented it, but Bill made it famous,” - David Bradley, 2001.
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No you just hover your finger over the power button threateningly and give it a few moments to realise how wrong it was to lock up. Then all is good again.
Steve Cooper That works for Chuck Norris, I bet!
Allan Richardson I think Chuck Norris only has to stare at it.
That, or you viciously smack the side of your monitor as a demonstration to your actual computer tower that you mean business and it had better shape up, or it was next!
@@BTheBlindRef ...and the reason Skynet became sentient.
That same single button issue is why you should never put a power button on the keyboard either.
Unless you program it correctly
+1000000
I had a keyboard with a power off button on one side and I ended disabling that feature in windows because I always ended up turning off my fucking computer by accident.
My keyboard had sleep, restart and power off in place where print screen usually is, I ripped them out.
PongoXBongo worat idea by lenovo in the early 2000s especially by putting it near the delete key
Just looking on the keyboard of my 13" macbook pro... :-)
the 'secret' is, that the key itself only jumps to the shutdown/reboot-menu and doesn't reboot instantly.
You have to keep it pressed for several seconds to reboot the system.
"Nobody wants to accidentally restart their computer"
Yeah, BBC Micro. Nobody wants that.
Frikkin' Break key.
I remember losing a typed-in program that took over an hour to enter, by pressing that damn key. Luckily, Acorn put in a command to restore your program, called "OLD". I found that out too late in this instance, however.
Lockable on the Master series
I remember those old days and managed to stop it by using technics lego to build a guard over it.
Where there's a will, there's a way!
Yeah, nobody wants that...
*Goes to plug in a USB device, accidentally hits the restart button*
SHIT!!!! >.
CTRL+SHIFT+ESCAPE directly opens the task manager
Wow! I didn't know that, thanks!
I always forget what the direct to task manager shortcut is. I should probably try and memorize it but I've been using CTRL+ALT+DEL since I first started using computers and it works well enough.
CTRL + ALT + ESCAPE closes a program
ALT + F4 closes the focused program. If there aren't any programs open, it shuts down the computer.
thats useful to know - thanks! why are we not told these things?
The bit about it being used for login and bringing up the task manager for any fake programs was really interesting
Zero 1 But slightly wrong. On secure versions of Windows (including NT 3.10), Ctrl-Alt-Del *always* switches to the secure screen, where starting the task manager is just one of several options, rebooting being another. The set of options available depends if you are logged in and some security settings.
Don't perpetuate the lie that it is ever meant to bring up the task manager, which was always CTRL+SHIFT+ESC (SHIFT was optional before Win95).
1:49 You'd think that wouldn't you, but then you see stupid keyboards with sleep and shutdown buttons on them right next to important buttons, like the arrow keys.
wow. that's some serious quality design there
Mine isn't that bad - I have a compacted full keyboard (whatever that is) and the power button is above the PgUp key but it's further away.
NOTE: on my keyboard, when using the power button when the system is on it puts it into sleep mode.
I'm still looking for the Any key...
The "Any" key is just basically any key.
its on the left, right next to F13
I thought I had figured it out by buying a Gateway Anykey keyboard, but even that doesn't have the Any key.
@@mariannmariann2052 r/woooosh
I've never seen such a dad joke get r/woooosh 'd so hard before.
One of my cats once stood on ctrl and alt with one paw, hovering a front paw over delete... "accidental"?
lol
lol. Never underestimate a cat's sense of purpose...
I know my cat was leaping at doorknobs.
Even though it's physically impossible for it to twist the knob and actually open a door that way, it had still clearly figured out that the knob had something to do with getting the door to open...
Now the question is, was your cat doing that accidentally, or did it have a purpose.
And if so, why was it trying to restart your computer? XD
Why do you let animals roam around in your house? That's disgusting.
+Mouldy CPU
What if his house is a farm? Also he never said that it happened inside his house. He may have taken a Laptop out in the park, sat down on his perfectly neat picnic towel when his well mannered cat just felt like tapping into her keyboard skills?? Or while he was working the reception desk of the pet hotel, his own pet, which he is allowed to bring to work, wanted to express her dissatisfaction with another, not so well mannered guest?
Mouldy CPU But....But...pets!.
I still remember the times when I had one of these "sophisticated" keyboards with extra function keys for, in this order, put PC into hibernation, start web browser, email program, play/pause, rewind, fast forward etc.
These buttons were from left to right on top of escape and the F1-12 buttons. I was always extraordinarily happy when I blindly reached for escape or F1 in the middle of a game, usually online, and my computer would go into hibernation without so much as a prompt.
lol. I was quite surprised when I learnt some of those 'extra' keys are just repurposed function keys.
Like if you have a keyboard with media controls, that translates to stuff like F14 and so on.
Turns out quite a few older keyboards had 16 function keys, not 12. Even better, it seems at a hardware level PC's appear to recognise anything up to F20 at a minimum.
So in fact all those things tend to just be extra function keys that aren't labelled as such. XD
my current 3 year old keyboard has 16 F keys...
Even the last generation of full-width wired Apple keyboards (which they stopped making only recently) went to F19. The one before went to F20. Being primarily a PC user, it felt a bit strange ;)
having recently switched to a more compact design (albeit not a mac-specific keyboard, not that my previous mac-specific keyboard was actually apple made) i must say i do miss the extra keys. i had bound F13-15 to be media keys.
builder396 That is why I hate it when many laptops reverse the logic on F1 to F12, doing the custom commands unless you hold down the Fn key. Fortunately most provide a BIOS option to restore sanity.
I prefer holding the power button, ripping the computer out of the wall outlet and hurling the computer out of my 24 story apartment complex.
I prefer to carry it gently down the stairs and out of my 24 story building and then toss it off the 25 story building across the road.
AntiChangeling I prefer to carry it gently down the stairs od my 24 story building, getting to the 25 floor building on the other side and then take it onto a helicopter that landed on the rooftop to toss it from their!
just seems like a slower way to reboot the pc that way. i tried it though. having to lug it all that back up the stairs and plug it in was to much for me. didn't help that on the third go the pc wouldn't boot. likely it was just getting old.
I mostly reserve that option for Fax Machines and printers.
Well, that'd definitely shut it down. Restarting may be problematic.
Bill and his one key nonsense... I had a Microsoft keyboard, with added "feature" keys. While pressing the "Sleep" key was slightly annoying, the true evil was the "Shutdown" key.
The slightest tap of a stray finger or cat paw, bad times.
You could disable them, but i don't imagine most people would have figured out how.
The windows key by itself was already the bane of my existence. So many accidental 'windows key' presses while gaming.
and it took a Looong time before games started disabling it, or keyboards started offering a way to disable it as an option (as my current keyboard does)
It got so bad at some point I resorted to physically prying the windows and 'menu' key off my keyboard. (what even is the point of that 'menu' key anyway? All it does is replicate what happens if you use the right mouse button. - maybe that explains why my current keyboard has the windows key but not that one.)
Point of the menu key was to allow mouseless operation. Back in the days of 95, the mouse was PS/2 and wasn't reliable.
I like the menu key.
I pried the sleep button off of one of my keyboards though. It was the worst offender on there, thankfully.
I removed these keys physically....
For gaming purposes, I always used AutoHotkey, to remap any undesirable keys to require additional modifier keys.
My main problem (while playing WoW) was accidentally pressing Alt-Tab - Pressing Tab to get a new target without taking my finger of Alt, which I used as the modifier for my second row of spells.
Sorry...far to much random detail, anyway AutoHotkey has so many uses :)
The IBM AT did introduce a dedicated system request key -- SysReq -- but nobody ever used it for much, not even Microsoft.
VWestlife Indeedy Mr. Westlife
except unix and linux!
THE most useless key.
What do you mean by nobody used it much. It is the print screen button in windows. My Logitech G910 keyboard even has SYSRQ printed on the key.
Linux uses the SysRq key to send special commands to the kernel, which is useful to safely reboot a Linux computer in an emergency (like if some program is completely jammed)
The thing about the windows and menu keys is that they're optional. Yea, *most* keyboards added them, but some didn't. Now, if you couldn't login to your machine without the new keys, that would be a problem.
So telling every user they've got to trash their favorite old keyboard because Microsoft thought they'd get made fun of for using an interrupt that was already there would have been ugly. And some manufacturers might have just left it off anyway since you don't need it for home desktop logins.
So I think saying that Microsoft had the power to add keys is disingenuous. Microsoft managed to add some optional keys to most keyboards, eventually. That's not quite the same as getting universal acceptance of a key that would have been mandatory.
One aspect that might be missed here is the fact Microsoft themselves became producers of computer peripherals like mice and keyboards. I think the first keyboards which had the "windows keys" on were from Microsoft themselves. They did have some pull with computer manufacturers, who also had their own custom keyboards (eventually adding Windows keys). That said, I think you are right about the mandatory thing. Microsoft often tried to get features added which would be mandatory additions, and eventually many of these technologies became standard, but you're right that their attempts to dictate generally generated pushback from users and therefore manufacturers as well, despite the aforementioned pull.
If your keyboard hasn't a Windows Flag key, you can hit Ctrl+Esc for the same purpose.
Dr. Sbaitso! I rememeber if you kept saying "I love you.", after turning you down multiple times, he would eventually say:
*"Ooohh~ , my circuits are melting."*
4:50 wait, CTRL+ALT+RESET?
Not sure of the reason for it in the Microsoft prompt, but some old IBM keyboards actually have a reset key.
I use CTRL + SHIFT + ESC
Edit:Why does this comment have over 100 likes?
that works 2, but not when a program has locked itself in the foreground
+robert linke
I suggest you to press CTRL+SHIFT+ESC right now and enable Task Manager to appear ontop of all windows. This way, programs can't lock themself over the task manager, at least partially.
exactly
Ctrl+Shift+Esc. CPC for the win.
@robert, In the Task Manager options there's a setting to always show Task Manager on top.
"Here at Apple we don't use such convoluted combinations! You simply tap the screen, throw it into trash and buy a new one!"
They still use some combinations, even three-key ones. But I get the joke; Apple's iMacs of your time were extremely fragile when it came to the screens.
No, not CTRL ALT DEL. Its ALT + SYSRQ + REISUB!
Reboot Even If System Utterly Broken
technically, ALT + PrintScreen = SYSRQ, so it's SYSRQ + REISUB, isn't it?
"The key combination consists of Alt+Sys Req and another key, which controls the command issued." -Wikipedia, 2017
Leberkas Semmel Doesn't work until Linux kernel loaded. I remember patching in an extra letter to simulate C-A-D on serial terminals.
you could just say sysrq + B
because who needs killing tasks, syncing and unmounting filesystems
David Bradley was one of my college professors!
Michael Heath Same here. NC State?
When you think you’ve seen it all you see a google account with no dp and 0 subs being verified.. bro what’s happening there haha
How did you get verified with 0 subs xd
+BassApps: See Andrew Kan's video "How I got Verified✔ on TH-cam! - [How to Get Verified ✅] ".
Yo nice spam which completely ignores my question.
can be a pain in the ass for the newbies playing with virtual machines
Those guys still have other shortcuts that simulate this key combination for the VM.
Ctrl-alt-insert
"RIGHT CONTROL"
@@sebastian19745 imagine if it still restarted your main PC to this day..... oof
I did have a PC keyboard with a power-off key. Of course, they had to shuffle things around to make room for it so they replaced the elongated backspace key with an ordinary sized one and put the power off button next to it. This design flaw, I then fixed with a screwdriver.
I don't know why someone didn't opt to hardwire a reset button onto a keyboard with an aeroplane style momentary toggle switch with edgy cover and yellow and black tape!
Logic!
CTRL AMIGA AMIGA ;)
LEGIT!!
Thanks to this combo I can reset my A500 with just the right hand.
Steve Benway Awww. I’m remembering that, too. Childhood and youth with my Amiga and the start of my career as a programmer. Good times.
Steve Benway button on back of Acorn A5000
Hey I know you! You don't do reviews or play throughs. You just show me the game so I know what it looks like
"Here's literally the entire world for you. You can own it now. All you have to do is change ctrl-alt-del to something different"
"Nah"
ctrl-alt-end
In the glorious 80s my IT teacher didn't know it. She tried to sneak in and see what combo it was, didn't ask. When she finally caught me doing it, she proudly taught to the class like she knew that all along... She also required principal to be present when i had turned off the monitor so show how i had now broken the whole thing. She didn't allow me to turn the monitor on before it was witnessed. I turned the monitor on and she had the reddest faces ive seen when everything was just fine. I happened to have Amiga at home and was in the IT club the year before. I knew more than she did at the time... IT in the 80s and early 90s was often comical and students usually knew more than teachers.. My IT vocation school turned to be "how to fix radios" and the "IT" we had was 2 hours of word and excel per week. I spent my time with ancient Kaypros (abut same age as my current computer is from current date.. lol...) and XY plotter in the backroom that was total waste of time.
SquidCaps Graduating this year, and I’ve experienced some teachers knowing less than students even now when it comes to anything technology related, but luckily they never acted like they did know more than the students. Instead they learned from us and have became better teachers because of it!
Dr. Sbaitso! Man, that brings back memories.
Did anyone else chuckle at the phrase "three fingered salute"?
You have to read between the lines
The Star Trek salute is probably derived from this. 2x2 fingers and a thumb...
@@manuell3505 We used to call it the Vulcan nerve pinch and the power button was the one finger salute lol.
I refer to it as the 3 fingered waltz
What about the rest of the story? David Bradley and all the models, and the Bugatti and Maserati, and his coke fueled excursions in the Phillipines?
3:30 It's worth noting that modern x64 EFI/UEFI systems boot directly into long mode. That whole transition from real mode to protected mode and long mode only applies to systems with legacy BIOS.
Its like my current PC time travels from the 80s to the 10s every boot then lol
If you switch your UEFI to "Legacy Mode", the Bootloader gets loaded in real mode, and then can proceed like in gone-by days.
I believe you'll find the processor still starts up in Real mode. It's just the BIOS will switch the processor into Long Mode before calling the UEFI boot code.
Any CPU after the 8086, beginning with the 80286 have no Real mode, it is called Unreal Mode.
And Unreal and Protected Mode are completely bypassed with the UEFI. The UEFI searches for an ELF, and sends that to the CPU. The only Modes for UEFI are Long (x64) and Flat (x86).
1. Unreal mode is something a little bit different. It is the state when you have protected mode segment registers still loaded but protected mode disabled (PE bit in CR0 cleared) so you can access up to 4GiB address space in real mode.
2. x86(-64) CPUs still boot in real mode at address 0xFFFFFFF0 and no software can circumvent it. UEFI just switches to protected/long mode earlier. Even in multiprocessor/multicore environment additional CPUs/cores start in real mode when enabled by so called BSP (bootstrap processor) and it is up to the OS to switch them to Protected/Long mode.
3. UEFI does not support ELF format. It uses (windows like) PE executable format.
LOL.
Dr. SBAITSO often crashed beyond a soft reset.
At least on a 486 SX 33 using a Turtle Beach sound card.
Don't forget the Amiga's elegant and stylish equivalent: Ctrl+Amiga+Amiga! Lovely!
Wait there is two Amiga keys on a Amiga keyboard? Let me search it.
Yes there is two.
CTRL ALT COMMODORE
RUN/STOP RESTORE
The enemy of every C64 user. :D
LOAD"*",8,1 or was it LOAD"$",8,1 I can't remember. There was also a short cut for the word load typing L then SHIFT+O which produced an L with an upside down "L" next to it. I was 6 when I learned to do this so my memory of this is a bit obscure.
Are you keeping up with the Commodore? Because the Commodore is keeping up with you!
Being a kid I remember thinking that 'delete' meant the backspace key.
Really? You wouldn't change it for the _world?_
If a deity offered to make you the eternal god king ruler of the entire planet Earth under the one caveat that Ctrl+alt+Del becomes, I dunno, Ctrl+alt+insert... You wouldn't do it?
What do a bunch of blacks in Africa have to do with computers? Jesus christ. Great ad huh. There was one white guy, hiding in the background.
😂He is my neighbor, David Bradley AKa the guy who created control alt delete. He is a funny guy as he made jokes while he talked to me and my siblings as we waited for the bus in the mornings and he would take morning walks
I always called it "Alt/Ctrl/Del" because I do it with my right hand.
Now you have the problem of task manager being the thing that freezes half the time.
I hope they never take this away. Some one forgot to install this on the HAL 9000 and look at the problems that caused.
🔴 I'm sorry. I can't do that, Dave.
4:50 why does it say "Ctrl+Alt+Reset" rather than "Ctrl+Alt+Delete"?
In Ubuntu it logs you off, which I find a useful feature.
i just move my cursor to the top left corner
ALT + SysRq :)
I love how on Linux it's `Alt+SysReq+R+E+I+S+U+B` to reboot.
Why ist the SAK removed in NT likes after Windows 7 in Domain Enviornment?
Windows 8 to 10 is the SAK removed...
I wished there is still an anti-spoof combination!
Keyboard keys such as Ctrl and Alt, that are intended to be pressed in combination with other keys, have their own columns on the keyboard matrix. It's only the third key that's arbitrary.
Its no great hardship to press ctrl-alt-delete to log on to a domain computer. It's something done without even thinking about it, just like hitting win-l to lock the screen when going for a cuppa.
Nice keyboard, by the way. IBM Model Mmmmm :D Clickety Clickety Clack.
yep just tried that in win 10. nice one.
*Phil Rodgers* I use Win+L more often than CTRL+ALT+DEL
Does Alt stand for Alternate, Alter or Altoid?
AntiChangeling it stands for altair obvs
Fool, it's Altazimuths.
It stands for "Meta"
"Alternate". I have never seen it spelled out on a IBM-compatible keyboard, but NeXT had a few keyboards that had the full word on the key.
Altair 6. its a no win scenario
I have a keyboard that actually has sleep and restart buttons on it (or at least did have them), I had to take them off in the end as I was always accidentally turning my computer off or restarting it.
I became quite adept at doing it one handed. Fingers shouldn't bend that way, but I managed it.
I was about to say you must have massive hands, until I remembered that there's a Ctrl and an Alt on the right-hand side of the keyboard, too. So much for "requiring two hands to prevent accidental activation".
On some keyboards that does still require a weird contortion, to get the alt with your thumb, the delete with your middle finger, and a weird bend backwards with the index finger to get control, while still being able to reach the delete.
It's still pretty difficult to do accidentally. Ctrl + Alt + Esc could happen just from mashing part of your hand down on the left side of the keyboard.
Ctrl + Alt + Delete on the right side are far enough apart that you really have to spread your hand out wide and hit things at just the right angle to hit all 3 at once.
It's not impossible, but it is less likely.
The original IBM PC keyboard had only 83-keys and lacked right Control/Alt keys (along with many other keys). So the key combination really did require two hands to activate when it was first implemented. Same is true for the later 84-key keyboard.
+GeckonCZ Well. It looks like the right Ctrl/Alt keys weren't added until about 1986...about two years before I would have seen an IBM PC in person for the first time. ...I really should have looked that up before snarking - thanks for pointing that out.
We told a boy at school that if he pressed Ctrl-Alt-Del when playing Doom it would give him invincibility. He came in the next day saying we'd broken his computer and it didn't work properly anymore! :)
I don't think you should've put that smiley emoticon...
@@avi8aviate Why not? It's perfect.
@@TheFox517 If you're a sociopath, maybe. Do you realize how much a computer costs, especially at times when Doom was popular?
@@avi8aviate Yeah, a keyboard shortcut can't break a whole PC. It would propably break anyway if it gave up after a simple reboot.
@@TheFox517 An improper reboot can corrupt a critical file, leaving an operating system unusable or even unbootable.
The soft reboot!
We always called it warm boot.
In a sense, Atari is still superior to the PC with FOUR reboot options.
There was CTRL+ALT+DEL for a Warm Reboot.
There was CTRL+ALT+SHIFT+DEL for a Cold Reboot.
There was the reset button on the back.
And finally killing the power all together.
PCs only have the three-finger-salute and killing the power. Heck, the power button isn't immediate anymore.
The 2nd Nerd Video I've enjoyed today. It was a good day.
You showed the wrong keyboard. The 102 keyboard doesn't exist at the time.
Correct is the 83 keyboard for the pc/xt: www.pcguide.com/ref/kb/layout/stdXT83-c.html
I just remembered the original Model F PC keyboards didn't have a separate delete key. They all had that weird XT layout. CTRL-ALT-DEL wasn't actually DEL. It was the numpad "." or "del".
I just tried it. It works. You can use the numpad "del" button for ctrl-alt-del. And it doesn't matter if numlock is on or off.
It's terrific. Not even my cat can trigger it accidentally.
No new systems boot in real mode, they start in 64bit mode (the UEFI firmware code is 64bit). That is still programmed to cause ctrl-alt-del to reboot the system though. Similarly if you boot straight to Linux from UEFI the CPU never leaves 64bit mode, but there the key combination is programmed in the kernel to issue a system shutdown and reboot rather than instant reset.
UEFI systems with CSM have a 16bit BIOS still available as a fallback mode, so they will still allow a switch to boot DOS or older 32bit environments that still rely on BIOS calls to boot. In that way they behave exactly as an older PC once it runs the BIOS code.
That's the first time I've ever seen a computer from that time loading a "MOUSE" driver, as was shown before the c prompt came up. I don't know any computer with a mouse before Windows 3.1.
project acorn???? 5150????? the 5150 was called project chess... P C... that was its code name ..
It has saved my ass many times ! Now this damn windows key... >_
2018 and we still don’t have an ‘any’ key... So much for advancement... ...LOL.. :)
You can disable Ctrl-Alt-Del in real mode in exactly the same way as in protected mode: by removing the BIOS's IRQ 1 (defaultly mapped to INT 9). This is related to protected mode only by the fact that in real mode this just works and requires effort to disable, while in protected mode it requires significant effort from whatever supervisor is running to preserve it's functionality. Default mapping of IRQs 0-7 conflicts with protected mode exception handlers and thus have to remapped somewhere else and then there is the question of actually calling into the BIOS code, which involves either vm86 mode or temporarily tearing down protected mode (or running BIOS code in software x86 emulator, which probably would not work in this case, but works for things like extension ROMs, particularly for VGA/VESA BIOS).
Apart from rebooting when I didn't mash the delete key in time to get into the BIOS, I don't really use CTRL ALT DEL anymore, usually use CTRL SHIFT ESC 'cause I have no need for the extra GUI added since Windows Vista (Was it added in vista or 7? I can't remember.). I still use a lot of other keyboard shortcuts though, ALT TAB being among the most common.
Why only three, though? I'd go with four, really make it hard to fuck up. CTRL-ALT-DEL-KP_8 or something like that. Make it absolutely impossible to fuck up.
CTRL+SHIFT+ESC ftw
Very interesting vid and very well put together
MacOS has Command+Option+esc, which brings up a Force Quit box. Not quite as 'secure' as the double-hand CTRL+ALT+DEL, and not quite a Task Manager, but it works.
Even if you don't have the appropriate keyboard for demo purposes, I think you should have included at least an image of one that originally had single CTRL and ALT keys on the left, and the only DEL key was on the combined number/cursor pad. Further, this combination was out of the box (so to speak) with the earliest machines.
Other trivia: The PC and XT were built with entirely off-the-shelf components that a tech could restock for about $200, except for the custom EPROM chips.
The AT-286 machine was fully capable of hardware multi-tasking, but MS never bothered to enhance DOS to allow multiple applications. I reasonably believe that the purpose of the SysRq key was to call up an equivalent of the task manager to switch between applications.
If Windows had not STOLEN the ALT key for menus, and followed the behavior of the flagship DOS version of Word which hung the menu from the ESC key, there would never have been any need to introduce those MS-specific keys which are so conveniently positioned that merely bumping then kicks you out of your current application and requires the inconvenience of closing new unwanted boxes to get back to the work that you were performing.
My computing life started with SYSTEM RESET, then RUN/STOP RESTORE, and now CTRL ALT DEL, or holding POWER on my phone.
4:50 -- CTRL+ALT+RESET? Reset? How many keyboards have a "reset" key? Weird. It's funny that they wanted to require two hands to avoid accidental activation... my keyboard (and many previously) has a CTRL and ALT key on both sides of the space bar. It's in fact quite easy to manipulate all three keys with just one hand. Looks like the whole point has been lost to time.
i prefer having htop or simply task manger to be linked to ctrl-alt-del , just imagine if they had ctrl-alt-altgr-esc-del-0 , lets hope you got nimble fingers
Cool 😎 nice 👍 to know thanks 🙏 for the videos keep up the good work & SHOUTOUT TO CAB7 🚕TH-camR HE IS GREAT TO ME
There should be a key combination that forces every program to minimize and keep the programs there. During the time of the GEMA Virus (and similar named one. A virus that is infornt of everything and you can't do anything the normal way), this would be helpful. Still today even some games running in fullscreen might crash that badly, that you have trouble to get to the taskmanager and kill the game. Today CTRL+ALT+DEL brings a nice window on top and using the taskmanager in that screen, would help a lot. Today i use CTRL+Shift+Esc, because it starts the Taskmanager right away.
Also a good key combination: Win+L to lock the PC. Works with Win 7 and upwards (don't know if with older OS). Great at work, when leaving the desk or at home. You can it even use with auto login without password. I used Auto Login for Win 7 at home, because entering the password every time, was annoying. Still every Windows PC should have a password, when it's connected to LAN, except its a private Lan, without internet connection. You can skip the login at the start but just in case you have friends at home and need to leave the PC, you can use the key combination, to lock the PC.
Brilliant video after Brilliant video AND with proper British accent what could you possibly ask for more, Thanks!
And I bet most of us only use CTRL, ALT + DELETE on a work PC. I know I do. Working for a bank, I must press it several times a day, mostly to unlock it. I hardly ever use it at home. Cool vid buddy :)
I like how everybody seems to be using exurb1a's "27" computer code thingy, which itself is just a hexdump program outputting random data.
Whenever I ran a PC not in protected mode, and pressed Ctrl-Alt-Del, it always showed the BIOS POST screen before restarting the OS. That is since I got my first 386 in 1992.
"Although it wasn't hugely documented until the arrival of windows 3". That's because Windows 3 crashed your computer roughly 10 or 20 times a day, and I'm not sure that's an exaggeration.
Wrong keyboard used on presentation. On Model F it's even harder to push those keys as there's only one CTRL (in place of Caps Lock) and ALT (left CTRL), Delete is on numeric part of keyboard on the right.
The keyboards shown in this video are incorrect, as the ones used in the early 1980s with the original IBM PC only had 83 keys. Moreover, Ctrl-Alt-Del does *_nothing_* when a PC is running the Linux operating system.
Sometimes when my computer was really pissing me off I'd CTRL ALT DEL with the back of my fingers to give the computer a simultaneous V and middle finger.
Bill made it famous by introducing an operating system that requires CTRL+ALT+DEL all the time because it was buggy, not because of the logon
It was used in MSDOS and Microsoft Windows but not Linux or UNIX but they should have used PrtScr/SysReq+E for exit.
A 2hand 3button reser wasn't unfamiliar for me when I started to use a PC. The previous machine I used I had to hit Amiga-Amiga-CTRL to restart the machine. Yay!
A wee bit of the info is wrong upon David Bradley.... Ask me how I know that, lol.....
3:56 Not exactly accurate. The reason why protected mode operating systems override the Ctrl-Alt-Del in BIOS is that they have to. The BIOS was never officially ported to protected mode operation (although most of the time the real problem was the extension cards with their own ROM or various device drivers) so everytime somebody tried to run something in the protected mode and needed to access devices, he either had to switch the protected mode off to be able to access BIOS or he had to reimplement the BIOS services himself. And when they were at reimplementing BIOS, they repurposed the Ctrl-Alt-Del to do the additional things like the windows NT which required you to press Ctrl-Alt-Del before you could login to make sure users won't enter their credentials into a fake login program.
By the way this need to switch protected mode off before accessing BIOS was the reason why 286's version of protected mode failed. On 286 you could enter it but once inside, the only way to get out was to issue a CPU reset which is not exactly fast operation. This caused the developers to ignore the feature as most computer users at that era were not prepared to leave their old applications behind anytime soon and hardware device I/O interfaces of that era were nowhere near the standardisation we enjoy today (remember those pesky old CD-ROMs with their proprietary interfaces?) so using BIOS to access them was a must. Thus albeit Microsoft made a version of Windows that is able to use it, almost nobody was doing that and simply used the Real Mode version which could run their old DOS programs. This is why 386 introduced "V86 mode" which allows the OS to run BIOS code directly and only then protected mode really took off.
Apple II computers had a reset key in a faraway upper corner. "Reset" really meant "instant immediate interrupt and reboot" ... and "accidental" resets were common/annoying enough that excessively stiff/hard springs and switches eventually appeared on this one key ensure every Reset was deliberate. Later Apple II+ machines required Ctrl-Reset pressed together, impossible to do one-handed since they were located on opposite keyboard edges. A standard feature built into every subsequent Apple machine - and happily copied into every Apple clone - for at least a decade.
These machines all predated Ctrl-Alt-Del by years and they sure as hell weren't obscure. Especially since IBM meant to directly compete with them.
So I suspect this IBM engineering tale has been somewhat elaborated in history. The inventors of Ctrl-Alt-Del could not have been unaware of Ctrl-Reset, regardless of what IBM told the public.
Why not call it Alt-Control-Delete, instead of Control-Alt-Delete? IBM using Alt-Control-Delete. Once upon a time with Apple, there was Control-Open Apple-Reset to reset the whole computer for the Apple IIe. But then the Apple IIGS came out, which expects you to hold on to Open Apple key first, then Control and Reset, to reset the whole computer. On an Apple IIGS computer, it does not allow you to press Control-Open Apple-Reset, to reset the whole computer, instead you have to press Open Apple-Control-Reset, to reset the Apple IIGS to reset the whole computer. Due to the Apple thing going on, IBM should of called it Alt-Control-Delete, instead. But that can be forgiving. IBM allows Control-Alt-Delete. I personally prefer to call it Alt-Control-Delete. Don't know why Apple chose to change the orders of the keys, in the first place to reset the whole computer.
There's a bunch of keyboard debug options on the PC as well - CTRL+CTRL+R-Shift does something funny too ;).
Funny how Mac ended up using Command (CTRL) Option (ALT) Escape (ESC) anyway.
OMG! My Mac doesn't have that key combination!
Disaster.
What if I would have to restart it?
I mean, I've only had it for 9 years, it could hang up at any time! ;)
I have a topic I'd love to see you cover, mainly because I don't understand why it is the way it is, but it might be too technical or obscure for your channel;
DelayedExpansion of variables in scripts.
When I started writing more complex scripts for use in Windows, I found it quite similar to BASIC in most respects, but there is one aspect of it that still mystifies me to this day; DelayedExpansion.
When you use a loop in a script, normal variable logic goes out the window. You can explicitly set a variable, but it will NOT contain the value you just set it to. You have to jump through hoops just to get variables to behave the way logic tells you that they should. And to this day, I have never figured out how to read the ErrorLevel variable inside a loop. No matter what I do, it never works. Frankly, I think the programmers were stoned when they wrote the variable handling.
on a Chromebook Ctrl, Alt, Delete does not work, so you just have to hold down the power button till the system turns off, and if that does not work pull the power cord, and remove the battery if you can(can do on my Lenovo Thinkpad X131e Chromebook). it's the only OS I know of that runs on X86 based hardware where the 3 finger salute won't work.
Interesting that Ctrl+Break is another old DOS command. To this day, it's still the key command to immediately close Microsoft Flight Simulator (and its derivatives) without a confirmation message.
Moving to Linux, that was probably the single most jarring missing feature. many, many times i've had unresponsive, misbehaving software that i just needed to ctrl+alt+delete my way out of, but it was futile. Still to this day I have to manually bind ctrl+alt+del in software, only to get a mouse input based software kill, which is useless if the software is causing havoc with the desktop environment, which is often the case.
Guess before watching. It is a familiar combo that was used in similar situations in the older era. But thing is, back then it LITERALLY rebooted the computer. So it was necessary to have a key combo that couldnt possibly done by accident. The delete key was used for being far away (at the other side of the keyboard) from the other two.
Now let's see if I learned my computing history right.
The funny thing is that you can also use CTRL+ALTGR+DEL in windows too so you could totally reset your PC by mashing the keyboard with a single palm.
It is iconic... I think till the end of the World. I bet astronauts in 3XXX would use this in spaceship near Alpha Centauri :) greetings from Poland :)
I've always called it the 3 key salute. but either way, starting with an AT keyboard, I called it that because if you do it right, you're flipping yourself off. photos.app.goo.gl/myoUC9ntNLvPAiFd6
Okay, I'mma youngin', apparently. What's a three finger salute? (Born in the 90s, so this was just a skosh before my time.)