UNIT 6

UNIT 6

1. operating systems

   • software
     • interface human-computer
     • functions
       • control general actions
       • assign resources
       • control peripherals

2. hardware and software

   • hardware
     • physical part
   • software
     • programs

3. computer architecture

   • internal devices
     • power source
     • mainboard
     • microprocessor
     • main memory
     • hard drive
   • external devices
     • data input peripherals
     • data output peripherals
     • bidirectional peripherals

4. computer connections

   • buses
     • data buses
       • transmit information
     • address buses
       • transport address of data
     • control buses
       • control the data's flow

5. peripherals

   • input
     • keyboard
     • microphones
     • mice
     • graphics tablets
     • scanners
   • bidirectional
   • output
     • monitors
     • printers
     • speakers

6. computer memory

   • main memory
     • executes running programs
     • made of RAMs
   • secondary memory
     • hard drives

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