Chapter 2 Data Management Technologies - Google เอกสาร

OT30191 Computational Science   

 

Chapter 2 Data Management Technologies 

 

1. Data and its processing 
a. What is data? 
“raw and unorganised facts collected and stored together in 
various formats e.g. texts, numbers, figures, animation and 
videos.” 
 
b. Source of data: “the primary location from where data comes” 
 
c. Information: “the product of data processing.” 
 
d. Data processing 
■ Data processing: “the conversion of data into usable and 
desired form (called information)”. 

 

 
■ for example: Grading System 

 

 

2. Database 
a. What is database? 
■ “an organized collection of data, generally stored and 
accessed electronically from a computer system.” 

 
 
 
 
 
 
 

OT30191 Computational Science   

 
 

b. Database Management System (DBMS) 
■ “system software for creating and managing databases.”

c. Example of DBMS: MySQL 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

OT30191 Computational Science 
 

 
 
Further reading: 

● Diffen. Data VS Information. 
https://www.diffen.com/difference/Data_vs_Information.   
(accessed 2019-06-20). 

● TechTarget. Database Management System (DBMS).. 
https://searchsqlserver.techtarget.com/definition/database-management-
system. (accessed 2019-06-20).