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3198596
Info. Input, process and output
Description
computer class work
No tags specified
computer
class
homework
otro
Mind Map by
Pablo Vega
, updated more than 1 year ago
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Created by
Pablo Vega
over 9 years ago
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Resource summary
Info. Input, process and output
Not only in computers
Process shared by Humans, Info. Systems, and Computers
Info. enters (input)
Info. is processed in a microprocessor
Info. is stored in a memory device
A response is given (output)
In case of humans
Senses recieve info. (input)
Brain analyses info.
Brain keeps info. in memory
A response or reaction is given (output)
Dialog, communication and understanding
Human
Analog
Waves that let us hear, they vary in tone speed and volume
Electric devices
Digital lenguaje (binary)
2 states: on and off (1 and 0) to understand instructions and process information
Each 1 and 0 is called a "bit(b)"
Sequences of 8 bits = Byte(B)
Smallest data unit = byte
Bigger memory/data units
Megabyte = 2^20 bytes
Gigabyte = 2^30 bytes
Terabyte = 2^40 bytes
Actual computers have usually 500 Gigabytes of hard disk memory
ASCII code (representation of numbers)
1, 2, 4, 8, 16, 32, 64, 128 = combination of bits, each one representing a number
A 1 in a numerical slot means that number is "on", several 1's in different slots mean an addition
To represent
Images
Colors assigned to codes up to 32 bits
Vectors
Graphics designed by mathematical equations formulated by binary codes
Videos
Bits ordered in form of "bitmaps"
Music
Collected in intervals stored as numeric data of up to 16 bits
Unicode
Character codification to represent the alphabet in various languajes
Chinese
Korean
Japanese
16 bits
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