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Hardware and operating sistems - Coggle Diagram

- - - - Digital measurement units
      - ASCII
        
        The American Standard Code for Information Interchange is a standard table of seven-bit designations for digital representation of uppercase and lowercase Roman letters
  - - - Software or programs refer to the data and the instructions we use to manage that data.
        
        Computers carry out in four different functions:
        
        Output of data using peripheral devices.
        
        Imput of data using peripheral devices.
        
        Storing data in storage devices.
        
        Processing data in the CPU, using the microprocessor and the memory.
        
        This image represents the structure of a computer
  - - - An integrated circuit that contains all the functions of a central processing unit of a computer.
    - - It´s divided in:
        
        RAM
        
        Cache memory
        
        ROM BIOS
    - - An example of a motherboard
    - - We can connect physically devices to the computer in different ways
    - - We use data storage units to permanently save data of computer
- - - - Manage the system resources, making them available for use by the usser aplications
        
        The operating systems provides working envioroiment that makes easy to work in a computer. The most used are Windows, Linux and MacOS
        
        Functions of a operating system
        
        Manages the microprocessor. If several applications are open at the same time, the operating system calculates how much time the microprocessor should give to each one.
        
        If one of the tasks is very urgent, it takes top priority.
        
        Manages the memory and storage systems, making space available for the different applications.
        
        Provides an interface or working environment for the user.
        
        Allows communication between applications and peripheral devices.
    - - There are various types
        
        Word processors (Word)
        
        Database managemet tools (Access)
        
        Spreadsheets (Excel)
        
        Drawing programs (KolourPaint)
        
        Presentations (PowerPoint)
    - - These aplications can be used to create other aplications