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microprocessor (three basic elements (Logic circuits (ALU manipulate data…

- - - - bits go through a sequence of switches that changes them in some way
        
        during the processing bits are stored temporarily in a registers while they wait for the next instruction
        
        switches can also use to compare two bits in order to generate an output
        
        process is carried out through logic gates
        
        combinations of these gates can solve complex mathematical or logical problems
  - - - they control the movement of nits through the system
        
        this is done by means of an oscillator clock generates continuous pulses
        
        bits move through the circuit following the rhythm of the clock at frequencies of millions of cycle per second
  - - - contains thousands of capacitors connected to the system by a metal conductor with transistor acting as switches
        
        when signal opens a switch bits travel along the conductor
        
        two kinds of memory
        
        RAM
        
        is used to store information for short periods
        
        data can be added or erase
        
        ROM
        
        is a permanent store of information and normally contains instructions or programs for operating the system
        
        it can be neither erased nor added to
- - - - microprocessor acts like a brain uses logic circuits to decode instructions and manipulate data
- - - - the speed of microprocessor depends in the maximum word length
        
        the earliest had limited memories work with 4 bit the modern have access to megabytes of memory and work with 32 bit-64 bit
        
        microprocessing function as CPU but they also have innumerable other application