TECHNOLOGY

TECHNOLOGY

1. Parts of a computer system

   • HARDWARE
     • Constitutes the physical elements that make up a computer. These elements are referred to as hard because they can be seen and touched.
   • SOFTWARE
     • Consist of programs, instructions and algorithms, all which are defined as the logic elements that a computer needs in order to perform the tasks assigned to it.

2. Computer architecture

   • External devices
     • ·Data input peripherals. ·Data output peripherals ·Bidirectional peripherals.
   • Internal decives
     • ·Power source ·Mainboard or Motherboard ·Microprocessor ·RAM or main memory ·Hard drive

3. Computer connections

   • Data buses
     • Wich transmit informations.
   • Address buses
     • Which transport the signals that enable the addresses of necessary data to be located.
   • Data buses
     • Which transmit signals that activate specific devices.

4. Computer memory

   • The main memory
     • Which is used to execute all the programs and instructions currently
   • The secondary memory
     • Which is made up of hard drives and CD units, etc

5. Peripherals

   • Output peripherals
     • ·Monitors ·Printers ·Speakers
   • Input peripherals
     • ·Keayboards ·Microphones ·Mice ·Scanners ·Graphic tablets

6. Operating system

   • Linux
   • Microsoft