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Transcript of Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in...
![Page 1: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/1.jpg)
Starter
Open “Exam Questions.docx”
Answer the exam questions IN SILENCE!
Save the document in your Theory folder.
![Page 2: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/2.jpg)
Lets go over the answers…
• Remember exam technique
• Correct any mistakes
• Make a note in your books of any techniques you should have used or any way you can improve your answers…
![Page 3: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/3.jpg)
Lesson Objectives
By the end of the lesson you will be able to:
1. Define different types of storage
2. Recommend suitable storage options for a given scenario
3. Understand different methods of data access
![Page 4: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/4.jpg)
Storage Methods
• So far we’ve learnt about PLACES where data can be stored, but not HOW.
• There are two main methods. Can anyone work out what they mean?
– Sequential
– Random Access
![Page 5: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/5.jpg)
Sequential
• Imagine you’re in a queue…
• You can’t get to the end until all those in front of you have left the queue.
• People leave the queue in SEQUENCE.
• It’s like music on old cassette tapes, you can’t get to song two without going through song one!
![Page 6: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/6.jpg)
Using a DIAGRAM, put an explanation of “Sequential” storage in your books…
Think of, and write down, at LEAST 2 advantages and 2 disadvantages of this method of storage.
Task 1
![Page 7: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/7.jpg)
Random Access
• Exactly what it says on the tin…
• Or as Mr Gump would say, like a box of chocolates…
• Why?
• Because you can dip in and take any one you like, in any order!
![Page 8: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/8.jpg)
Using a DIAGRAM, put an explanation of “Random Access” storage in your books…
Think of, and write down, at LEAST 2 advantages and 2 disadvantages of this method of storage.
Task 2
![Page 9: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/9.jpg)
Revision
On the next slide you will see some storage devices.
You must:1. Name each one2. State whether it is magnetic or solid state3. State whether it is volatile or non volatile4. Give an example of it’s use
![Page 10: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/10.jpg)
Devices…1
2
3
4 5
![Page 11: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/11.jpg)
Task 3
• You need to write a paragraph (or two, I don’t mind) to explain the following:
• Why do we need three different types of storage in a PC – Cache, RAM and HDD?
• Discuss in your answer what each stores, volatility, speed, size etc.
![Page 12: Starter Open “Exam Questions.docx” Answer the exam questions IN SILENCE! Save the document in your Theory folder.](https://reader036.fdocuments.in/reader036/viewer/2022062516/56649d755503460f94a56619/html5/thumbnails/12.jpg)
Homework
None this lesson!