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  2. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    An operating system ( OS) is system software that manages computer hardware and software resources, and provides common services for computer programs . Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and ...

  3. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    The GNU C library, an implementation of the C standard library, works as a wrapper for the system calls of the Linux kernel necessary to the kernel-userspace interface, the toolchain is a broad collection of programming tools vital to Linux development (including the compilers used to build the Linux kernel itself), and the coreutils implement ...

  4. Qubit - Wikipedia

    en.wikipedia.org/wiki/Qubit

    qudit ( d -dimensional) v. t. e. The general definition of a qubit as the quantum state of a two- level quantum system. In quantum computing, a qubit ( / ˈkjuːbɪt /) or quantum bit is a basic unit of quantum information —the quantum version of the classic binary bit physically realized with a two-state device.

  5. This is what a 50-qubit quantum computer looks like - Engadget

    www.engadget.com/2018-01-09-this-is-what-a-50...

    The term refers to the moment when a quantum computer is able to outperform a traditional system or accomplish a task otherwise thought impossible. The problem, though, is that quantum computers ...

  6. Quantum computing - Wikipedia

    en.wikipedia.org/wiki/Quantum_computing

    Quantum computing. Quantum System One, a quantum computer by IBM from 2019 with 20 superconducting qubits [ 1] A quantum computer is a computer that exploits quantum mechanical phenomena. On small scales, physical matter exhibits properties of both particles and waves, and quantum computing leverages this behavior using specialized hardware.

  7. Kernel (operating system) - Wikipedia

    en.wikipedia.org/wiki/Kernel_(operating_system)

    The kernel is a computer program at the core of a computer 's operating system and generally has complete control over everything in the system. The kernel is also responsible for preventing and mitigating conflicts between different processes. [1] It is the portion of the operating system code that is always resident in memory [2] and ...

  8. Systems architecture - Wikipedia

    en.wikipedia.org/wiki/Systems_architecture

    A system architecture primarily concentrates on the internal interfaces among the system's components or subsystems, and on the interface (s) between the system and its external environment, especially the user. (In the specific case of computer systems, this latter, special, interface is known as the computer human interface, AKA human ...

  9. System on a chip - Wikipedia

    en.wikipedia.org/wiki/System_on_a_chip

    A system on a chip or system-on-chip ( SoC / ˌˈɛsoʊsiː /; pl. SoCs / ˌˈɛsoʊsiːz /) is an integrated circuit that integrates most or all components of a computer or other electronic system. These components almost always include on-chip central processing unit (CPU), memory interfaces, input/output devices and interfaces, and secondary ...