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How A CPU (Central Processing Unit) Works !

Hi, we'll be discussing classical computing, more specifically - how the CPU operates and CPU parallelism. [Music] In the previous video in this series we discussed the shrinking of the transistor, allowing for more powerful and efficient computers, as well as the end of Moore's Law based on the miniaturization of the transistor within the next seven to ten years. Be sure to check it out for some background context for this video. Now in that video when referring to computing performance, we were focused on classical computing based on the CPU.

Classical computing, is essentially the digital computer, almost every computing device on the market today is a classical computer. Classical computers operate in serial, in other words, as mentioned in the first video in the series, Computing Origins, executing various instructions extremely fast in 'order', but to the average user it appears to be running them in parallel, meaning multiple instructions at a time. This is du…

Best 10 Ways To Make Your Pc Faster(Windows OS)

How's it going guys, I'm Bhawi. And for a lot of us, our computer just doesnot run as fast as we would like it to, or as fast as it did in the past maybe. So in this video we're going to go over 10specific tips on some things you can try in Windows that may improve your computer's performance. Now obviously nothing beats a hardware upgrade,but if you do have a lower end computer, some of these tricks might help. Now if you have a high end computer or a moderncomputer you just upgraded and it's still running slow, you might have other issuesthat these probably won't help. But if your computer just over the years hasgotten slower, or has always been kinda slow, these should help to some degree.

Way No. 1


So to start off, this one is probably goingto make a difference if you do have a very low end computer, or an old one, or like anold laptop, and that is to turn off visual effects in Windows. Now you can get to this by going to start,and then typing in "performance", and then going to "Adjust the appearance and performanceof Windows", and then check "Adjust for best performance". And what this will simply do is remove a lotof fancy animations, maybe graphical effects. So Windows probably will look a little bituglier, but it may seem a little bit snappier because you're not like waiting for animationsand stuff like that, so again this will be for very low end hardware with very low graphicspower, this could make a difference, but if you have a reasonably powered computer, itprobably won't make a huge difference, so you may just prefer Windows to look nicerwhen you're using it and not choose this.

Way No. 2


Next up, for number 2, this one will onlyactually apply if you have multiple operating systems installed, so if you don't you canjust ignore this one, but maybe listen to it if you're interested. So you may know when you dual boot a computer,usually it will give you an option to select which operating system you want to boot to,and it will spend a certain amount of time at that menu, and you can actually reducethat so it doesn't take like 30 seconds by default to boot up. And you can go to the settings to change thisby going to start, and then typing in "This PC" and then on that, click "Properties" onthe right side, then go to "Change Settings" (Or "Advanced System Settings"), Advanced,and then Startup and Recovery, and then go to the settings on there. And then look for the setting here called"Time to Display list of operating systems" and you can change this from 30 second defaultto maybe something like 10, and that will just save as much time as you shave off. But again if you know you don't dual bootoperating systems, it's probably to just not mess with those settings at all.

Way No. 3


The next thing you can try is to make Windowsuse a high performance power plan. you can get to this by going to the startmenu, and then settings, and then System, Power & Sleep, and clicking Additional PowerOptions, and by default this will show as Balanced, but there will be other optionslikely showing up here. And High Performance maybe the one you wantto consider, especially if you're on a desktop. Now if you're using a laptop that's alwaysplugged in, you can also choose high performance, but just be aware if you're using a laptopthat is not plugged in running off battery, then this will probably severely drain thebattery life. So in that case you may not want to changeit, but if you are running off AC power, high performance is probably the best if your computeris noticeably slow most of the time. Also keep in mind though this will make itso your CPU will run at a higher clock by default all the time, so if you're concernedabout energy usage, or maybe you have really bad cooling in your computer, you may noticeit running hotter, and the fans running faster, so if you do notice that and don't like it,you can of course turn it off of high performance back onto balanced. But if you don't notice any issues of it runningat a higher heat, and it probably won't even be that big of a difference, you can justkeep it on high performance, that's what I do on my main computer. The next thing you can try is either disablingor limiting Windows search indexing. So you can get to this setting by going toSettings, and then Search, then Searching Windows tab, and you can either set this toclassic, to greatly reduce the amount of files indexed. It will only be able to search within librariesand desktop, so it's not going to search everything else on your computer. If you set it to enhanced, I think that mightbe the default in newer installations of Windows, it's going to search other files beyond justthe libraries. Now this will probably make a bigger differenceif you have a lot of files and you're running off a hard drive as opposed to an SSD. If you are using an SSD it might not makethat big of a difference. But it's still worth trying, but be awareif you turn this off, and then turn it back on, when Windows goes to re-index everything,it might slow down your computer for a little while, while it has to re-index everything. So just be aware of that. But you may notice a difference if you disableit completely on lower-end computers and you don't do a lot of searching for files. You kind of already know where everythingis it might be worth it to just turn it off. So it's not chugging through files all thetime.

Way No. 4


Now, the next feature we can take advantageof is called ReadyBoost you may have heard of it, but it allows you to insert a USB driveand kind of use that as extra, slower RAM. So basically Windows may use this to storecommonly used files on the thumb drive. Or I don't know, offload some RAM onto itif you don't have a lot of RAM and the idea is instead of using virtual memory on thehard drive, (if you're using a hard drive that's very slow), if you use a USB drivebecause it's flash memory, that maybe even faster, and that way you can get some potentialextra speed if you are always running out of RAM and you have a slow drive. Now to use this feature, you're going to haveto insert a thumb drive into any USB port on the computer and I believe it should bebetween 1 gigabyte free and 32 gigabytes free. And there can I believe actually be fileson it already, Windows will kind of separate out some data and reserve it. But in any case after you put in the driveyou go to this PC where it lists all the drives inserted, you right click on the flash driveand then hit properties and then go to ReadyBoost. If your computer is fast enough where it wouldnot benefit from this at all, like on my computer, it will tell you so and I'll tell you it'snot even worth it don't even bother, but if you do have a computer that could potentiallybenefit from it, you'll have several options. So you can select either dedicate this deviceto ReadyBoost in which case I believe it may wipe it or you may have to wipe it yourselffirst, or you can just hit "use this device" and then select an amount to reserve for thisfeature. Again, this feature will probably only makea difference if you do not have a lot of RAM in the first place. So either you have 4 gigabytes or potentiallyless, or you have less than 8 gigabytes, but you still use a lot of RAM, something likethat, and your computer is constantly just running up against that limit and needs otherplace it to store it, and your hard drive is not very fast for the "page file", whichwe'll talk about next. So it might help if you have a very low endcomputer, but if your computer is reasonably fast with RAM at least then this might notbenefit you, but it might still be worth trying.

Way No. 5


Alright now the next thing we can try is toincrease the page file size in Windows. I'll try to explain how this works. Kind of like the same idea with ReadyBoost,page file is a much older feature and it's kind of the same thing where if your computerstarts to run out of memory, it will start storing temporary files or commonly used filesthat it still needs to access frequently in so-called "page file" or a dedicated areaof the hard drive instead of the RAM. It will kind of again offload things fromthe RAM onto the hard drive. And use that instead, but of course a harddrive is many many many times slower than RAM. So it's kind of like a last resort. But if you don't have a lot of RAM then youkind of still need to use this regardless. So what will happen is if you don't have enoughRAM and you don't have even enough page file size as a backup, then your computer willrun extremely slow. So you want to make sure that your page filesize is definitely big enough to use everything that it needs to. So to change these settings, what you needto do is go to start menu, again we're going to do it similar like before, type "This PC"and then go to the properties there. Go to "Advanced System Settings" the Advancedtab, under Performance go to settings, and then the Advanced tab here and then look fora "virtual memory" and then click change. By default, it will probably already say "Automaticallymanaging paging file size for all drives". So if you do want to change this, you canjust uncheck that. Then you're going to want to look for thedrive labeled "system managed" and just click on that and this will show you some informationabout how big the page file size is, and based on this you may decide to change it or not. If the page file size is already about asbig as your memory (your Max RAM memory), that's probably fine. But if it's very small, then you can changeit. And you can do that by changing it to a customsize and then set the initial size to whatever is recommended and then the maximum file sizeto really as much space as you're willing to afford, or if you want to leave these systemmanaged one alone. You can actually just add multiple drivesif you have them and add an extra page file on an extra drive. So you can just click on a drive with no pagefile and then also select "system managed size" or select "custom" so that way it willstill manage automatically the size of it, you'll just have an extra one in there. And ideally if you have an SSD, you wouldput at least one to be page files on an SSD, because it's a lot faster than a hard driveand even faster than what you get from a ReadyBoost thumb drive. So ideally a page file would be (at leastone of them) on an SSD if you can afford it, but still having one that's the proper size,even on hard drive is better than nothing.

Way No. 6


Alright now the next two are kind of relatedand it has to do with making sure there's no corrupted files within the Windows installation. And the first one is the System File Checker. And this is a tool built into Windows thatwill automatically, like I just said, do a scan of the Windows files, check if there'sany corruptions or anything, and try to repair it automatically. So to do this, you'll need to go to the commandprompt. So you can just go into the start menu Search"Command Prompt" or "CMD" and then right-click it hit run as administrator and will comeup, and then you type in "sfc /scannow" and then just let it do its thing. It might take a while like an hour or morepotentially, but you can do other stuff while it's running. And then hopefully it'll say that there'sno errors found but it might come back with something and then try to repair it. Hopefully it will successfully repair it inthat case. Now I can't get into all the errors it mayproduce if something goes wrong. You'll just have to Google that and try tofix it yourself. There's too many for me to even potentiallycover. So at least if you run this and it does showsomething, you'll know something could potentially be wrong. Now after you run the System File Checkerthere is yet another command you can type in which kind of does a similar scan but alittle bit in a different way but also do the same thing essentially, where else canfor corrupted files and try to replace them with Windows update automatically. So again, you're going to want to open thecommand prompt and then type in the following command. I'll put these in the description so you canjust copy and paste them, but it's "DISM.exe /Online /Cleanup-image /Restorehealth". And again go just run that let it do its thingand hopefully it will be able to repair any issues if it finds any at all. Now one big thing to point out is after yourun system file Checker and then the DISM command, let both run through, you probablywant to restart and then run System File Checker again, and this is because both of the commandsto do the scans may rely on files that the other one may have repaired. So if the System File Checker was unable torepair something then when you ran the DISM that might have actually fixed a file thatwill allow the system file Checker to repair the next time you run it. So that's why you want to run both, and thenrun System File Checker again, and then hopefully that will fix it if there is any lingeringproblems. And these are good commands to run every oncein a while, even if your computer isn't having issues because there might be some corruptedfile that doesn't really make that big of a difference but they start to add up overtime and then before you know it you're having issues. So it's good to just kind of keep on top ofthese and run these cans to make it sure everything is always working well.

Way No. 7


All right up next we want to take advantageof Windows automated maintenance. Now, this is something Windows should runautomatically really every day. But if it's not working correctly, then thatcould cause issues. So you can get to this by going to the startmenu and then typing in control panel and then going to System and Security, Securityand Maintenance and then go to the drop down next to Maintenance. Here you can check the last run date of theautomated maintenance. So if it's been a while you can go into thechange maintenance settings and select a better time where the computer may actually be on. I believe even if it sets to 2AM by defaultthen it'll probably just run the next time window starts up, but that may not be happeningif you notice that it hasn't run in a while. So just set it to a time where you know youmight not be using computer but it still on, or you can also click Start maintenance andit will just do it immediately. And this just does some things like runs defragmentationon your hard drive if it's required that sort of thing just to keep things up and up. All right now if you have tried pretty muchevery single thing to get your computer running faster and it still does not, there is prettymuch one last nuclear option, which is the feature called "Reset This PC" and if youdon't know how to reformat a hard drive, which would really be the best ideal scenario, butit is pretty complicated, resetting the PC is the next best thing. And this will basically restore Windows toit's kind of default state. It'll I believe uninstall all programs, resetall settings and stuff like that, but I believe it should keep your files intact. It's supposed to but of course you alwayswant to backup before doing something like this. So your library files will still be therebut programs may not. So you might as well consider this a methodto basically reinstall Windows and kind of start from scratch. Now before I tell you how to do this be sureto stick around the rest of the video because I am going to talk about some more obviousthings that you should definitely do for even resorting to this but I did want to mentionthem first because they're kind of obvious but still you should try them before doingthis but you do need to here's what you do. You go to settings and then Update and Securityand then go to recovery, and then you'll have the option to reset this PC. And it'll kind of walk you through and tellhow it works, but again do this as like a last resort. All right now, we're not done yet. Those were the 10 main things I wanted tomention this video because they're not so obvious but they will still probably help. But there are still some things you can trythat may make a little bit of a difference probably not but maybe and then at the endwe can talk about some stuff that really should try probably first, but they are kind of obviousso I didn't want to go through all of those at the beginning. So the first thing you can try is to disableWindows tips and tricks. So you can do that by going to settings, system,notifications and actions, and then uncheck "get tips tricks and suggestions". And supposedly this may help because it reducesthe amount of Windows tracking what you're doing so it can provide tips for you. So I don't know, may make a difference.

Way No. 8


The next thing you can do if you don't UseWindows OneDrive is to stop that from starting up with Windows and syncing. So you can do that by right-clicking on thetaskbar icon for OneDrive and they go to settings, settings tab, and then uncheck where it says"start OneDrive automatically" and then if you don't use this, then it's not going tostart up and start trying to sync and slow down your computer. It's just one less thing starts up. Another thing you can try to at least getan idea of what may be causing your computer to be slow is do run a performance monitorreport. nd you can do this by going to start menuand just typing "perfmon /report" and this will then open up the performance monitor,do a scan of what's going on with computer for about 60 seconds. It will tell you that. And then it'll print out a basic report. And this won't actually fix anything but youmay get some hints as to what's causing issues and slow downs. So you can look at like any big warnings orunder the basic system checks if there's any issues with the drives or something may tellyou that or check the resource overview for anything obvious. If you don't really know you're looking atthis may not be very helpful, but you are a little bit more tech savvy that you canat least get an idea. Maybe if you see some big warning you like,"Oh, that's pretty obvious I should fix that right now". It might be actionable. Alright now finally, we can go over some tipsthat should be pretty obvious. But these are things you really should tryif your computer is running slow. These will probably make the biggest difference. But I'm kind of assuming most of you alreadytried these. But if you haven't these are some things youneed to do. First of all, if your hard drive is gettingfilled up, even if it's an SSD, you need to really free up as much space as you can sogo through your programs, the list of programs under settings and then apps, and just uninstallanything you don't ever use that's just taking up space. You can also use a program I really like called"WinDirStat" and this will literally show you the biggest files on your computer. So if you see one that's like massive thatyou're like, "oh my gosh, I forgot this video file" or something like that. Then you can go in and delete it and it shouldbe pretty obvious.

Way No. 9


The next thing, which I mean it's pretty obvious,is disable as many startup programs that you're not using as possible. So if you're not going to at least uninstalla program you don't use, at least have it not startup with Windows. And you can do this, it's really easy by pressingCtrl+Shift+Escape to bring up the task manager. Now, you can really easily go to task managerstartup tab. It'll tell you everything that's startingup with Windows. And these days it'll even try to tell youwhich programs have the highest startup impact and use up the most resources. This might not always be super accurate, butit'll still give you a pretty good idea. So just go through here. If you know, you don't use a program thenyou can just right click and have it not start with Windows. If you're not sure what a program is at all,it might not be the best to disable it because then you might be disabling something that'skind of important. But if you recognize a program and you'relike, "oh I never use that", then you can just stop it from starting up. And that should make a really big performanceincrease, because not only will it speed up the start up of your computer, but then it'llreduce the amount of things that are running in the background constantly because usuallyif something starts up with Windows, it's never going away.

Way No. 10


All right. Now the final tip I should mention is reallygood if your computer is running slow for like one time, one day but not usually, andthat is to actually go into to the start menu and hit "restart" as opposed to shutting downand turning it back on. And the reason for that is that Windows 10actually does by default kind of like a hybrid hibernate / shutdown, where if you just shutdown it actually saves a lot of the stuff still running onto the drive so it can retrievethat and then restore it into the RAM, and boot up Windows faster. But that also means if there's some thingsrunning in the RAM are causing the computer slow down, then that will persist even aftershutting down the computer. Whereas if you do a restart Windows will completelyclear it out and really start from scratch and actually do a restart. So if your computer is running slow and you'retrying the old turn it off and on again thing try just getting a restart, it'll do a properrestart as opposed to shutting down which might not. So those are hopefully a lot of tips to makeyour computer run faster again, if it's been running slow. Now if you want to keep watching I did makea very similar video talking about some more tips for how to speed up your computer ifit's running slow. I'll put that link right here on this sideif you just want to click on that. So let me know what you guys think down incomment section especially if these helped, you can let me know down there and thanksso much for watching guys. I'll see you in the next video.

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