Data Types by Pam Higgs

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Slide Notes

Data Types

Published on Nov 22, 2015

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PRESENTATION OUTLINE

DATA TYPES

PRESENTED BY PAMELA HIGGS

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DIFFERENT DATA TYPES

Computers store data in different variables
Each variable is assigned a specific data type

COMMON DATA TYPES

Integers
Floating point numbers
Characters
Strings
Arrays

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SPECIFIC TYPES OF DATA

Dates
Timestamps
Boolean values
Variable characters

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NUMERIC DATA

Integers - this is only whole or decimal numbers
Currency - format with money
Date/time - months and days
Real numbers
Auto number - increases by 1 each time data is entered

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ALPHANUMERIC DATA

Text made up of letters and numbers
Boolean (logical) data - data with only two values

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Some programs require definition of the data type for a variable before giving it a value. Others can do this automatically.

Data types are used in database application too. These field require specific type of data to be input.

Data types used with uniformity across many records can easily be searched, sorted, and compared and matched with other information and data.

REFERENCES

Data types (n.d.). Retrieved from http://www.teach-icy.com/ks3/year7/data
Different data types (n.d.). Retrieved from http://www.igcseict.info/theory/5/types/index.html
Gupta, H. (Feb., 2008). Different Data Types Used in C Language. Retrieved from http://voices.yahoo.com/different-data-types
Kroenke, D. M. (2013). Using MIS (5th ed.). Upper Saddle river, NJ: Prentice Hall.

Pam Higgs