Info. Input, process and output

Pablo Vega
Mind Map by Pablo Vega, updated more than 1 year ago
Pablo Vega
Created by Pablo Vega about 6 years ago
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Description

computer class work

Resource summary

Info. Input, process and output
  1. Not only in computers
    1. Process shared by Humans, Info. Systems, and Computers
      1. Info. enters (input)
        1. Info. is processed in a microprocessor
          1. Info. is stored in a memory device
            1. A response is given (output)
        2. In case of humans
          1. Senses recieve info. (input)
            1. Brain analyses info.
              1. Brain keeps info. in memory
                1. A response or reaction is given (output)
          2. Dialog, communication and understanding
            1. Human
              1. Analog
                1. Waves that let us hear, they vary in tone speed and volume
              2. Electric devices
                1. Digital lenguaje (binary)
                  1. 2 states: on and off (1 and 0) to understand instructions and process information
                    1. Each 1 and 0 is called a "bit(b)"
                    2. Sequences of 8 bits = Byte(B)
                      1. Smallest data unit = byte
                        1. Bigger memory/data units
                          1. Megabyte = 2^20 bytes
                            1. Gigabyte = 2^30 bytes
                              1. Terabyte = 2^40 bytes
                                1. Actual computers have usually 500 Gigabytes of hard disk memory
                              2. ASCII code (representation of numbers)
                                1. 1, 2, 4, 8, 16, 32, 64, 128 = combination of bits, each one representing a number
                                  1. A 1 in a numerical slot means that number is "on", several 1's in different slots mean an addition
                              3. To represent
                                1. Images
                                  1. Colors assigned to codes up to 32 bits
                                  2. Vectors
                                    1. Graphics designed by mathematical equations formulated by binary codes
                                    2. Videos
                                      1. Bits ordered in form of "bitmaps"
                                      2. Music
                                        1. Collected in intervals stored as numeric data of up to 16 bits
                                      3. Unicode
                                        1. Character codification to represent the alphabet in various languajes
                                          1. Chinese
                                            1. Korean
                                              1. Japanese
                                                1. 16 bits
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