KS3 ICT | Data storage - devices for data such as hard disk drives

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ICT Quiz - Data Storage 01 (Questions)

This KS3 ICT quiz is about data storage. Data storage is important to computers in many ways. The earliest form of data storage was to use cards with holes punched in them. These could then be fed into a computer when they were needed and the data could be processed. Some of the early computers even required cards to contain the instructions that told them what to do with the data. As computers developed, magnetic tape, like that used for tape recorders, was used to store both data and programs. Accessing data like this was slow and the tape reels had to be moved backwards and forwards over a 'head'. The head read the magnetic tape and was fixed in place.

The next development for data storage was to replace the reels of tape with magnetic disks. These were smaller than the tape reels and the data could be accessed faster as they were read by moving both the disk and the head. Hard disk drives are based on this system and are found in almost all computers. These are being replaced by data storage devices like USB flash drives and solid state drives (SSDs). These are faster and more resistant to damage than hard disk drives.

Data is held in files which .......

[ ]	are arranged as exact copies of the data capture forms
[ ]	contain data arranged randomly
[ ]	contain data in organised structure
[ ]	store pieces of data wherever a space can be found

A data file is divided into .......

[ ]	chords
[ ]	discs
[ ]	records
[ ]	tapes

A data file record is divided into .......

[ ]	fields
[ ]	furrows
[ ]	meadows
[ ]	segments

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

A collection of data held together in an organised way .......

[ ]	is called a database
[ ]	is called a databaste
[ ]	is called a filing cabinet
[ ]	is difficult to keep tidy

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

Databases store data in tables. Each row of a table.......

[ ]	is a field
[ ]	is a file
[ ]	is a record
[ ]	is an index

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

10.

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

ICT Quiz - Data Storage 01 (Answers)

Data is held in files which .......

[ ]	are arranged as exact copies of the data capture forms
[ ]	contain data arranged randomly
[x]	contain data in organised structure
[ ]	store pieces of data wherever a space can be found

If it wasn't organised, it would be very slow and difficult to get at the data in the file

A data file is divided into .......

[ ]	chords
[ ]	discs
[x]	records
[ ]	tapes

Each record contains part of the data

A data file record is divided into .......

[x]	fields
[ ]	furrows
[ ]	meadows
[ ]	segments

This is part of the organisation of data in a file

The fields in a record .......

[ ]	all store the same data
[ ]	all store the same type of data
[ ]	are all the same size
[x]	store single items of data

The fields of a single record contain related data

Different fields in the same record .......

[ ]	always contain the same data
[ ]	always have the same length - fixed size
[ ]	never contain duplicate data
[x]	usually have different lengths - variable size

The field is only as large as needed - saving memory

A collection of data held together in an organised way .......

[x]	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?

[x]	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 organisation here

Databases store data in tables. Each row of a table.......

[ ]	is a field
[ ]	is a file
[x]	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
[x]	Librarian's National Insurance number

The librarian's NI number is not relevant data

10.

A single record in a data file .......

[x]	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

It would be confusing if each record held data that was not related