ring (computer security) wikipedia - EAS

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  1. A protection ring is one of two or more hierarchical levels or layers of privilege within the architecture of a computer system. This is generally hardware-enforced by some CPU architectures that provide different CPU modes at the hardware or microcode level.
    en.wikipedia.org/wiki/Protection_ring
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    What are protection rings in Computer Science?
    In computer science, hierarchical protection domains, often called protection rings, are mechanisms to protect data and functionality from faults (by improving fault tolerance) and malicious behaviour (by providing computer security). This approach is diametrically opposite to that of capability-based security.
    en.wikipedia.org/wiki/Protection_ring
    How does ring-based security work in Linux?
    When a hierarchy of modes exists (ring-based security), faults and exceptions at one privilege level may destabilize only the higher-numbered privilege levels. Thus, a fault in Ring 0 (the kernel mode with the highest privilege) will crash the entire system, but a fault in Ring 2 will only affect Rings 3 and beyond and Ring 2 itself, at most.
    en.wikipedia.org/wiki/Protection_ring
    What is a ring network?
    In a ring network, packets of data travel from one device to the next until they reach their destination. Most ring topologies allow packets to travel only in one direction, called a unidirectional ring network.
    www.computerhope.com/jargon/r/ringtopo.htm
    What kind of security system does ring have?
    In July 2018, Ring launched an alarm security kit called the Ring Alarm, which includes a keypad, siren, and motion sensors. At CES 2019, Ring announced a peephole camera.
    en.wikipedia.org/wiki/Ring_(company)
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    Ring (company) - Wikipedia

    https://en.wikipedia.org/wiki/Ring_(company)

    Ring LLC is a home security and smart home company owned by Amazon. Ring manufactures home security products that incorporate outdoor surveillance cameras, including the Ring Video smart doorbell, and hosts an app, Neighbors, for online social sharing of captured footage among

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    Pre-acquisition (2013–2017)
    In 2013, Ring was founded as Doorbot by Jamie Siminoff. Doorbot was crowdfunded via Christie Street, and raised US$364,000, more than the $250,000 requested.

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    Ring Video Doorbell
    The Ring Video Doorbell is the company's flagship product; it is a smart doorbell that contains a high-definition camera, a motion sensor,

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    Products
    TechHive gave the second-generation Ring doorbell a 4 out of 5, noting improvements in hardware and ease of installation over the first-generation model, but criticizing a lack of printed and online documentation.
    Police partnerships

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  4. Protection ring - Wikipedia

    https://en.wikipedia.org/wiki/Protection_ring

    In computer science, hierarchical protection domains, often called protection rings, are mechanisms to protect data and functionality from faults (by improving fault tolerance) and malicious behavior (by providing computer security).
    Computer operating systems provide different levels of access to resources. …

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  5. Ring (CPU) – Wikipedia

    https://de.wikipedia.org/wiki/Ring_(CPU)
    Image
    Der Befehlssatz wird für unprivilegierte Prozesse („Userland“) derart eingeschränkt, dass sie nicht direkt auf die Hardware zugreifen können und sich auch nicht aus ihrer Privilegierungsebene befreien können. Der Zugriff auf den Speicherbereich anderer Prozesse wird meist durch Speichervirtualisierung verhindert. Somit wird …
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  6. Home Security Systems | Smart Home Automation | Ring

    https://ring.com

    Review, share, and save Ring videos for one or multiple devices at your home. The ultimate security subscription with 24/7 protection for your home and internet. With Protect Plans, record your videos and photos to review, save and share the moments you missed.

  7. Nhân hệ điều hành – Wikipedia tiếng Việt

    https://vi.wikipedia.org/wiki/Nhân_hệ_điều_hành
    • Trong một định nghĩa về 'nhân hệ điều hành' Jochen Liedtkeđã tuyên bố rằng "sử dụng thường xuyên để biểu thị cho một phần của hệ điều hành có tính bắt buộc và chia sẻ với tất cả các phần mềm khác." Hầu hết các hệ điều hành đều dựa trên cơ sở là nhân. Sự tồn tại của nhân hệ điều hành là hệ quả tất yếu của việc thiết kế hệ thống máy tính thành một chuỗi các tầng trừu tượng …
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  8. Get Ring - Always Home - Microsoft Store

    https://www.microsoft.com/en-us/p/ring-always-home/9nblggh1qwd4

    Ring connects to your Wi-Fi network and sends you instant alerts when people press your Doorbell or trigger the built-in motion sensors. When you answer the alert, you can see, hear and speak to anyone on your property from your Windows 10 device.

  9. driver - What are Ring 0 and Ring 3 in the context of ...

    https://stackoverflow.com/questions/18717016

    10/09/2013 · en.wikipedia.org/wiki/Ring_%28computer_security%29 - Yes, they are the same as kernel mode and user mode, and in some versions of Windows rings 1 and 2 are effectively for device drivers – dwarduk Sep 10 '13 at 11:00

  10. What is a Ring Topology? - Computer Hope

    https://www.computerhope.com/jargon/r/ringtopo.htm

    13/11/2018 · Ring topology. Updated: 11/13/2018 by Computer Hope. A ring topology is a network configuration where device connections create a circular data path. Each networked device is connected to two others, like points on a circle. Together, devices in a ring topology are referred to as a ring network.

  11. NFC Ring - Safe, Simple, Secure. || One Smart Ring ...

    https://nfcring.com

    You can use your NFC Ring to share Wifi information, links to websites, links to pictures, contact information or whatever you think is suitable to be passed securely to your friends smartphone's and tablets. You can also use your NFC Ring to start apps with custom settings (parameters) which makes it even easier to use your device.

  12. Sonnettes | Caméras | Systèmes de sécurité | Ring Europe

    https://fr-fr.ring.com

    La protection de votre maison, c'est simple et intelligent avec Ring. Vous pouvez commencer l'experience avec une sonnette vidéo, une caméra de sécurité ou une alarme. Ou combinez plusieurs appareils Ring et connectez-les tous dans l'application Ring, pour sécuriser votre maison d'une manière qui répond à vos besoins.

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