MAPPING YOUR MIND THE BODY OF COMPUTERS Electronics Structure Integrated circuits Tiny components built on a flat piece of silicon including many interconnected microelectric devices Peripherals Computers consist of Hardware Can be Physical components that make up a computer Consists of Uses Peripherals Computer microprocessors, mobile phones, digital computer memories, etc. Any kind of device used to enter information and instructions into a computer and to deliver the output to the user Input Converts data into electrical signs and sends them to a device Primary input devices Components Keyboard Responsible for performing Mouse Input Types Processing Monolithic Touch pad Other input devices Output Hybrid Scanner Storage Digital camera Examples Webcam Software Transistors Can be used as Amplifier Switch Microprocessors Have all the functions of a Central Processing Unit (CPU) on a single chip Central Processing Unit (CPU) General purpose electronic circuits that interpret and execute instructions Consists of Control Unit (CU) Arithmetic Logic Unit (ALU) Transmission media Immediate Access Store (IAS) or Registers Physical means by which information is transmitted Can take place Through wires Untwisted pairs Twisted pairs Coaxial cables Triaxes Fibre optics Wireless Infrared system Antennae Satellites Microwaves Video digitiser Programs, instructions and data that make it possible for a computer to operate Graphics tablet Microphone Output Receives and translates digitised signals into comprehensible data for the user and displays them Primary output devices Monitor Printer Other output devices Multifuntion printer Multimedia projector Memory Speakers Any device capable of storing data and applications Headphones Input/Output Types Volatile memory Non-volatile memory Arranged according to levels Primary storage Processor registers RAM (random Access Memory) ROM (Read Only memory) Cache Secondary storage Can both send to and receive data from another device Touch screen Automated input devices Barcode reader Magnetic strip reader Magnetic ink character reader (MICR) Optical mark reader (OMR) Sensor Control devices Actuator Magnetic storage Motor Optical storage Buzzer Solid-state memory Light Tertiary storage Heater