FD1- Hierarchical Structure of Data Flashcards

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1
Q

What is data?

A

Raw facts (No meaning)

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2
Q

Why is data important?

A

To be processed in order to be meaningful
Processed data=Information
Information used to make decisions

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3
Q

Importance of good data?

A

Foundation of decision making.
Processing data accurate —> quality of decision is good

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4
Q

From smallest to biggest, list out the data hierarchy.

A

Bit
Byte/Character
Field
Record
Table
Database

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5
Q

What is Bit?

A

smallest data unit
consists 0 and 1

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6
Q

What is character/Byte?

A

consists of bits
Cannot exceed 8 bits

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7
Q

What is field?

A

consists of bytes
Hold a single values

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8
Q

WHat is Record?

A

Collection of related field
Siingle row

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9
Q

What is table

A

A collection of records
Files

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10
Q

What is Database

A

Storage medium for files
integrated through DBMS

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