ICT SYSTEMS

ICT SYSTEMS

1. systems

   • Types of computers
     • Personal computers
       • They are for personal use and are usually left in one place and are extremely powerful
     • Mainframe computers
       • Mainframes are large, powerful computers that can carry out many different tasks for many different people at the same time.
     • Super computers
       • Super computers are the fastest and most expensive computers in the world. They are mainly used in scientific research and weather modelling.
     • Embedded systems
       • An embedded computer is a single chip that contains all of the elements that are essential for any computer, such as RAM and ROM
   • The difference between hardware and software is that hardware are physical components that run or work with the computer.Software are the internal applications installed on your computer.
   • RAM
   • ROM

2. Hardware

   • Input devices
     • Input devices are devices used to input data or information into a computer. Input devices include the mouse, keyboard, smart cards, image catchers among and biometric scanners.
   • Output devices
     • An output device is a piece of hardware that is used to display or output data which has been processed or has been sorted on the computer.
       • Printers
       • Speakers
       • Monitors

3. Software

   • Operating systems
   • User interfaces
     • Graphical
     • Command line
   • Drivers
   • Utility software