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  2. Instruction cycle - Wikipedia

    en.wikipedia.org/wiki/Instruction_cycle

    The instruction cycle (also known as the fetch–decode–execute cycle, or simply the fetch–execute cycle) is the cycle that the central processing unit (CPU) follows from boot-up until the computer has shut down in order to process instructions. It is composed of three main stages: the fetch stage, the decode stage, and the execute stage.

  3. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    Perform a context switch back to the writing process. When the writing process has its time slice expired, the operating system will: [79] Pop from the call stack the registers other than the status register and program counter. Pop from the call stack the status register.

  4. Computer multitasking - Wikipedia

    en.wikipedia.org/wiki/Computer_multitasking

    Another such computer was the LEO III, first released in 1961. During batch processing, several different programs were loaded in the computer memory, and the first one began to run. When the first program reached an instruction waiting for a peripheral, the context of this program was stored away, and the second program in memory was given a ...

  5. Execution (computing) - Wikipedia

    en.wikipedia.org/wiki/Execution_(computing)

    Execution in computer and software engineering is the process by which a computer or virtual machine interprets and acts on the instructions of a computer program.Each instruction of a program is a description of a particular action which must be carried out, in order for a specific problem to be solved.

  6. Computer - Wikipedia

    en.wikipedia.org/wiki/Computer

    A human computer, with microscope and calculator, 1952. It was not until the mid-20th century that the word acquired its modern definition; according to the Oxford English Dictionary, the first known use of the word computer was in a different sense, in a 1613 book called The Yong Mans Gleanings by the English writer Richard Brathwait: "I haue [] read the truest computer of Times, and the best ...

  7. Spring clean your machine — you'll be amazed how much ... - AOL

    www.aol.com/lifestyle/spring-clean-machine-youll...

    Here are 6 easy ways to bring it back to life. ... It will free up storage space and make your computer operate faster. ... PUPs can significantly slow down your computer, so take care next time ...

  8. Booting - Wikipedia

    en.wikipedia.org/wiki/Booting

    In computing, booting is the process of starting a computer as initiated via hardware such as a physical button on the computer or by a software command. After it is switched on, a computer's central processing unit (CPU) has no software in its main memory , so some process must load software into memory before it can be executed.

  9. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!