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Losing data is no fun!

Data Storage 02

Learn how computers keep files safe even after shutdown. Compare storage devices, why speed and capacity matter, and how backups stop homework and photos disappearing.

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Fascinating Fact:

Secondary storage keeps data long term, like hard drives, SSDs, and USB memory sticks, even when the power is off.

In KS3 ICT, data storage is about where files and programs live when you are not using them. You will learn why some storage is faster than others, how capacity affects what you can save, and why backups help prevent data loss.

Key Terms

Secondary storage: Permanent storage used to save files and software, such as an internal drive, external drive, memory card, or USB stick.
SSD (solid-state drive): A storage device with no moving parts, often quicker and more durable than older spinning drives.
Backup: A copied version of data stored in another place so it can be restored if the original is deleted, damaged, or lost.

Frequently Asked Questions (Click to see answers)

What is secondary storage in KS3 ICT?

Secondary storage is where a computer saves data permanently, including documents, photos, and installed programs. It still keeps the data when the device is switched off.

Why does a computer need storage if it has RAM?

RAM only holds data while the computer is running, so it clears when power is off. Storage is needed to keep files and programs so they are available next time you turn it on.

What is the difference between an SSD and a hard drive?

An SSD stores data using memory chips and usually loads files faster. A hard drive uses spinning disks, often offers more space for the price, but can be slower and easier to damage.

Try These Related Quizzes

1 .

Data can be very valuable so needs storing on .......

flash drives

hard discs

DVD or CD-ROM

any of the above

Whatever seems most suitable in the circumstances

2 .

Which of these is not a good way of protecting data?

Storing it on a CD-ROM and copying to magnetic tape

Storing it on one flash drive and copying to a second

Storing it on a hard disc alone

Storing it on a hard disc and copying to a flash drive

Not making a second copy of valuable data is a serious error

3 .

Which is not an accidental loss of data?

Loss caused by a hard disk drive failing

Loss caused by an attack by a computer virus

Loss caused by an unintentional deletion

Loss caused by fire damage

Viruses are deliberate attacks

4 .

People illegally viewing or changing computer systems .......

are called hackers

are called hawkers

are called hikers

work for MI5

There are various reasons why hackers break into computer systems - it is often done as part of a criminal activity

5 .

What is meant by a 'flat file' database?

It is a database split into several separate data files

It is a database using a single table for all records

It is a database without any records

It is a relational database which has been squashed

Often saved as a CSV (comma separated variable) text file

6 .

Which is most suitable for use as a flat file database?

Graphics editor

Spreadsheet

Web browser

Word processor

Flat file databases are best used where the amount of data is not too large

7 .

A spreadsheet can be used as a flat file database if .......

all the fields of one record occupy one spreadsheet row

each field is no more than 128 characters long

it doesn't contain any other text or formulae

no more than 10,000 records will be stored

In a relational database, the fields of one record can be spread between several tables

8 .

Queries allow you to ....... in a database.

select and update fields

select, filter and update fields

select, sort and filter fields

sort, filter and update fields

Updating records might be done using a 'form'

9 .

Printed output from a database is called a .......

result

response

report

retort

It can be easier to read printed data than looking directly at the database fields

10 .

Making copies of data in case of a data loss is called .......

getting your back up

making a back-up

making a stuff up

putting your feet up

Frequently changing stored data needs frequent back-ups. The longer that you leave it between back-ups, the more data you could lose if you had a disaster like the computer breaking down

You can find more about this topic by visiting BBC Bitesize - Data and databases

Author: Duncan Daish

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