COMPUTERS

COMPUTERS

1. 1. Introduction to Information Technology

   • 1.1 The computer
     •  Is a machine that processes information, in other words, it receives and stores data, performs calculationswith this data and presents the results very quickly.
   • 1.2 Hardware components
     • Case of Tower
     • Pheripherals
   • 1.3. Software components
     • Programs
     • Data
   • 1.4. Tipes of computers
     • 1.4.1. Personal computers
       • Desktop computer
       • Laptop
       • Tablet
       • Smatphone
     • 1.4.2. Mainframes
     • 1.4.3. Supercomputers

2. 2. Motherboard and CPU

   • 2.1. The motherboard
     • All the elements of the computer are connected to it
     • 2.1.1. Support
       • Physical 
     • 2.1.2. Motherboard´s surface
       • Copper conductors
         • Traces
   • 2.2. Microprocessor
   • 2.3. RAM memory
     • Random Access Memory
   • 2.4. Power supply
     • Direct Current
       • The generator´s polarity is always the same. ( - TO + )
     • Alternating Current
       • Generator´s polarity changes 50 times per second

3. 3. Hard disk and DVD

4. 4. Ports and expansion cards

5. 5. Peripherals

   • Input
     • Keyboard
     • Mouse
     • Webcam
     • Scanner
     • Game controller
     • Microphone
     • Barcode sacnner
     • Graphics tablet
   • input/output
     • hard drive
     • CD AND DVD
       • lector/escritor
     • USB memory
     • modem
     • touch screen
   • Output
     • Monitor
     • Printer
     • Speakers
     • Plotter