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Human Organ Systems
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Nazi Germany and Holocaust 1933-1945
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261
•
3 Jan 2026
•
Vanessa
@divine_asalways
Ever wondered what makes your computer tick? Understanding hardware components... Show more
Think of RAM as your computer's workspace - it's where all the action happens when you're running programs! RAM is volatile memory, which means it needs constant power to keep your data safe. Turn off your computer, and everything in RAM disappears.
Your CPU can't run programs directly from your hard drive - they need to be copied into RAM first. This is why having more gigabytes of RAM means your computer can handle more programs at once without slowing down. Each piece of data gets stored in a unique memory location with its own address, so your computer can find it again quickly.
RAM sits in memory slots on your motherboard, and most motherboards have 2-4 of these slots. The process is simple: data starts on your hard drive, gets loaded into RAM, then your CPU can access it. More RAM equals faster performance because your computer doesn't have to constantly swap data back and forth with slower storage devices.
Quick Tip: If your computer feels sluggish, upgrading RAM is often the easiest way to boost performance!
Computer systems need both hardware and software to function - think of hardware as the body and software as the brain! Hardware includes all the physical components you can touch: CPU, hard disk, monitor, keyboard, and mouse.
There are four main categories of computer hardware. Input devices like keyboards and mice let you enter data. Processing devices (mainly the CPU) manipulate that data. Storage devices keep your files safe, whilst output devices like monitors and printers show you the results.
Backing up your data is crucial, and you've got four solid options. USB sticks are portable and convenient. External hard drives offer loads of storage space. Cloud storage services like iCloud and Google Drive let you access files anywhere. Even printing gives you a physical copy as backup!
Understanding these basics helps you make smart decisions about which computer suits your needs and how to keep your important files safe.
Remember: A computer is only as good as its weakest component - all parts need to work together smoothly!
Building a personal computer requires seven essential components: memory (RAM), CPU, motherboard, storage, power supply, case, and monitor. Each part has a specific job, and they all work together like a well-organized team.
Upgrading components instead of buying a new computer has serious advantages. You'll save money, get better component quality, and help the environment by reducing waste. Popular upgrades include RAM memory, CPU, graphics cards, and monitors - each targeting different performance improvements.
RAM upgrades are particularly effective because they prevent slowdowns and enable smoother multitasking. For gaming, upgrading RAM improves visual quality and creates smoother gameplay. However, major component changes might require reinstalling software, which can be time-consuming.
External storage like hard drives or memory sticks offers extra space without opening your computer. The downside? They can break, get lost, or become disconnected when you need them most. Weigh these pros and cons before deciding on your upgrade strategy.
Pro Tip: Start with RAM upgrades - they're usually the easiest and give the biggest performance boost for your money!
Modern computers use dozens of different hardware components, each designed for specific tasks. Understanding what each piece does helps you troubleshoot problems and make informed purchasing decisions.
Input devices include keyboards, mice, trackballs, microphones, webcams, and card readers. Output devices cover monitors, printers, speakers, and headphones. Storage devices range from traditional hard drives and DVD drives to modern USB drives and memory cards.
Processing components like graphics cards and RAM work alongside your CPU to handle different computing tasks. Graphics cards specifically manage visual output, whilst RAM provides temporary storage for active programs.
Knowing these components helps you identify what you need for specific tasks - gaming requires powerful graphics cards, video editing needs lots of RAM, and file storage demands large hard drives.
Key Insight: Different computer tasks require different hardware strengths - match your components to your intended use!
The CPU is literally the "brains" of your computer - every single instruction, even typing one letter, must go through it! This microprocessor handles all the thinking and decision-making that makes your computer actually compute things.
Inside your CPU are three crucial components. The ALU (Arithmetic Logic Unit) performs maths and logical operations. The Control Unit manages other computer components and interprets instructions. Cache serves as ultra-fast memory where frequently used instructions are stored for quick access.
CPU speed depends on three main factors: clock speed (how fast it operates), cache size (how much fast memory it has), and cores (how many processing units work simultaneously). Modern high-end CPUs contain over 1 billion transistors - microscopic switches that represent binary 1s and 0s.
Your CPU sits in a special socket on the motherboard and gets incredibly hot during operation. That's why every CPU needs its own cooling system with a fan and heat sink to prevent overheating and damage.
Fast Fact: Each transistor in your CPU is smaller than a virus, yet they switch on and off billions of times per second!
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
App Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Vanessa
@divine_asalways
Ever wondered what makes your computer tick? Understanding hardware components like RAM, CPU, and storage devices is essential for anyone wanting to know how computers actually work and perform.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Think of RAM as your computer's workspace - it's where all the action happens when you're running programs! RAM is volatile memory, which means it needs constant power to keep your data safe. Turn off your computer, and everything in RAM disappears.
Your CPU can't run programs directly from your hard drive - they need to be copied into RAM first. This is why having more gigabytes of RAM means your computer can handle more programs at once without slowing down. Each piece of data gets stored in a unique memory location with its own address, so your computer can find it again quickly.
RAM sits in memory slots on your motherboard, and most motherboards have 2-4 of these slots. The process is simple: data starts on your hard drive, gets loaded into RAM, then your CPU can access it. More RAM equals faster performance because your computer doesn't have to constantly swap data back and forth with slower storage devices.
Quick Tip: If your computer feels sluggish, upgrading RAM is often the easiest way to boost performance!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Computer systems need both hardware and software to function - think of hardware as the body and software as the brain! Hardware includes all the physical components you can touch: CPU, hard disk, monitor, keyboard, and mouse.
There are four main categories of computer hardware. Input devices like keyboards and mice let you enter data. Processing devices (mainly the CPU) manipulate that data. Storage devices keep your files safe, whilst output devices like monitors and printers show you the results.
Backing up your data is crucial, and you've got four solid options. USB sticks are portable and convenient. External hard drives offer loads of storage space. Cloud storage services like iCloud and Google Drive let you access files anywhere. Even printing gives you a physical copy as backup!
Understanding these basics helps you make smart decisions about which computer suits your needs and how to keep your important files safe.
Remember: A computer is only as good as its weakest component - all parts need to work together smoothly!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Building a personal computer requires seven essential components: memory (RAM), CPU, motherboard, storage, power supply, case, and monitor. Each part has a specific job, and they all work together like a well-organized team.
Upgrading components instead of buying a new computer has serious advantages. You'll save money, get better component quality, and help the environment by reducing waste. Popular upgrades include RAM memory, CPU, graphics cards, and monitors - each targeting different performance improvements.
RAM upgrades are particularly effective because they prevent slowdowns and enable smoother multitasking. For gaming, upgrading RAM improves visual quality and creates smoother gameplay. However, major component changes might require reinstalling software, which can be time-consuming.
External storage like hard drives or memory sticks offers extra space without opening your computer. The downside? They can break, get lost, or become disconnected when you need them most. Weigh these pros and cons before deciding on your upgrade strategy.
Pro Tip: Start with RAM upgrades - they're usually the easiest and give the biggest performance boost for your money!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Modern computers use dozens of different hardware components, each designed for specific tasks. Understanding what each piece does helps you troubleshoot problems and make informed purchasing decisions.
Input devices include keyboards, mice, trackballs, microphones, webcams, and card readers. Output devices cover monitors, printers, speakers, and headphones. Storage devices range from traditional hard drives and DVD drives to modern USB drives and memory cards.
Processing components like graphics cards and RAM work alongside your CPU to handle different computing tasks. Graphics cards specifically manage visual output, whilst RAM provides temporary storage for active programs.
Knowing these components helps you identify what you need for specific tasks - gaming requires powerful graphics cards, video editing needs lots of RAM, and file storage demands large hard drives.
Key Insight: Different computer tasks require different hardware strengths - match your components to your intended use!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The CPU is literally the "brains" of your computer - every single instruction, even typing one letter, must go through it! This microprocessor handles all the thinking and decision-making that makes your computer actually compute things.
Inside your CPU are three crucial components. The ALU (Arithmetic Logic Unit) performs maths and logical operations. The Control Unit manages other computer components and interprets instructions. Cache serves as ultra-fast memory where frequently used instructions are stored for quick access.
CPU speed depends on three main factors: clock speed (how fast it operates), cache size (how much fast memory it has), and cores (how many processing units work simultaneously). Modern high-end CPUs contain over 1 billion transistors - microscopic switches that represent binary 1s and 0s.
Your CPU sits in a special socket on the motherboard and gets incredibly hot during operation. That's why every CPU needs its own cooling system with a fan and heat sink to prevent overheating and damage.
Fast Fact: Each transistor in your CPU is smaller than a virus, yet they switch on and off billions of times per second!
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
5
Smart Tools NEW
Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
App Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
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