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Computers are key components of the world of today. They play a very important role in education, business, economic, and many other fields. …

Computers are key components of the world of today. They play a very important role in education, business, economic, and many other fields.
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Transcript

  • 1. Computers….and…more
  • 2. A programmable device Carries out specific tasks Arithmetic & mathematic operations Sequences of processes
  • 3. Electronic devices Input peripherals Output Mixed peripherals Storage Memories Central Processing Unit or CPU • Executes a series of instructions • Integrated circuits • • • • • • •
  • 4. Interfaces Programs Applications OS Resources Connection with equipment Is a set of programs that serve as intermediary between the user and the hardware
  • 5. TYPES OF OS SINGLE TASK MULTI USER MULTI TASK SINGLE USER
  • 6. Convenient Efficient Organized In constant evolution Versitile Changing Adaptable
  • 7. Facilitates communication Sharing files, information… Share computer resources Programming
  • 8. NETWORKS
  • 9. Scale: WAN, LAN, PAN, CAN, BN (backbone), VPN (virtual private)… Connection:home PNA, Ethernet, line… Services: pubic or private Topology: tree, ring, star, bus…. Protocol: net & protocol…