Computers

Computers

1. What is it?

   • Is a machine that can be programmed to manipulate symbols

2. Characteristics

   • It store and retrieve large amounts of data.
     • It can exceute a prerecorded list of instructions
       • It respond to a specific set of instructions in a well-defined manner.

3. Harware

   • Physical parts of a computer
     • -Central Processing Unit (CPU )
     • Memory
     • Mass Storage Device
     • Input Dervice
     • Output Device

4. Types of Computers

   • Personal Computer
     • A small, single-user computer bassed on a micropocessor
   • Workstation
     • It's like a personal computer but it has a more powerful microprocessor
   • Minicomputer
     • They're capable of supporting up to hundreds of users simultaneously
     • Mainframe
   • Supercomputer
     • It's an extremely fast computer that can perform hundreds of millions of instructions per second

5. Personal Computers Types

   • Tower Model
   • Desktop Model
   • Notebook Model
   • Laptop Computer
   • Subnotebook Computer
   • Hand-held computer
   • Palmtop
   • PDA

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