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CHAPTER 3 COMPUTER OPERATING SYSTEM, PROGRAM AND APPLICATION - Coggle…

- - - - Install a new program or app
      - Update existing software
      - Experience network or Internet connectivity problems
      - It may stop responding altogether
    - - Use operating system instructions
      - Press keys on the keyboard
      - Required to respond to on-screen prompts
      - Restarts automatically
    - - (3) The start-up process executes a series of tests to check the various components
      - (4) If the tests are successful, the kernel of the operating system and other frequently used instructions load from the computer or mobile device’s internal storage media to its memory (RAM)
      - (2) The charge of electricity causes the processor chip to reset itself and finds the firmware that contains start-up instructions
      - (5) The operating system in memory takes control of the computer or mobile device and loads system configuration information
      - (1) When you turn on the computer or mobile device, the power supply or battery sends an electrical current to circuitry in the computer or mobile device
  - - - To configure devices, manage system resources, automate system management tasks, and troubleshoot network connections and network administrators
      - Short keywords or abbreviations / presses special keys on the keyboard
      - Minor errors, such as a missing period, generate an error message
      - The set of commands used to control actions is called the command language
  - - - Concerned with security
      - Want to reduce energy costs
      - Prefer to clear memory often
    - - Use operating system commands
      - Press keyboard key(s)
      - Push a power button
      - A combination of these methods
- - - - Receiving data from an input device
      - Processing instructions
      - Transferring items from storage to memory
        and from memory to storage
      - Sending information to an output device
- - - - Fixing program errors
      - Improving program functionality
      - Expanding program features
      - Enhancing security
      - Modifying device drivers