Data%20Structure%20Arrays%20and%20Records

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Data StructureArrays and Records

• Annie Kanner

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Data Structures Helpful Vocabulary

• Data structure collection of data with related
  variables.
• Loops make array processing easier by , -, x, /
• Histogram diagram representation of a frequency
  array.
• Field smallest element of named data.

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Data Structure

• What is a data structure?

• A data structure allows computers to store
  information so it can be found in an efficient
  and easy way.
• Data structures represent sets of data that has
  connections between them.

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Data Structure Array

• What is an array?

• An array is considered the simplest type of data
  structure, it contains fixed-sized data elements.
• Each array has a subscript that tells what the
  ordinal number of each element from the beginning
  on.

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Arrays continued

• A frequency array indicates how many elements
  have the same value within a series of numbers.
• These types of arrays are one-dimensional because
  the data is organized linearly.

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Arrays continued again

• Are there different types of arrays?

• Yes, another type of array is known as a
  two-dimensional array.
• They have rows and columns.

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Records

• What other data structures are there?

• Another type of data structure is a record.
• A record collects data with similar elements
  (fields).
• Each element or field has a different name.

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Record continued

• Elements that are in a record should all be
  somehow related to one subject, but they can have
  different categories.
• This is unlike an array because in an array
  everything must be the same type.