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Data Storage 1
An ISBN number of a book would be a field in a library book database.

Data Storage 1

This Computer Science quiz is called 'Data Storage 1' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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A hard disk is a device for data storage. Today, more and more people are mobile: they are working on similar tasks at home, office, etc. Thus, the concept of storing data online is becoming increasingly common.

Try our first quiz on Data Storage.

Data is held in files which .......
are arranged as exact copies of the data capture forms
contain data arranged randomly
contain data in organized structure
store pieces of data wherever a space can be found
A data file is divided into .......
A data file record is divided into .......
The fields in a record .......
all store the same data
all store the same type of data
are all the same size
store single items of data
Different fields in the same record .......
always contain the same data
always have the same length - fixed size
never contain duplicate data
usually have different lengths - variable size
The field is only as large as needed - saving memory
A collection of data held together in an organized way .......
is called a database
is called a databaste
is called a filing cabinet
is difficult to keep tidy
Even paper records can form a database
Which of these is not considered a database?
A box full of loose paper receipts
A name and address book listed alphabetically
The Electoral Roll
The Worldwide Web
Lots of data but no suggestion of organization here
Databases store data in tables. Each row of a table.......
is a field
is a file
is a record
is an index
A table may store millions of records
Which would not be a field in a library book database?
Date book last issued
Date of purchase
ISBN number
Librarian's National Insurance number
The librarian's NI number is not relevant data here
A single record in a data file .......
contains data about one object of interest
is the same as a database table
usually holds data about several objects of interest
will always contain a large number of fields
Author:  Duncan Daish

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