1_3 Storage And Memory , Processing.pptx

CAT GRADE 11 MODULE 1.3

1. Computers, part of your life – Grade 11 1

2. Storage, memory and processing Module 1.3 2

3. Content Memory and storage What are memory and storage? Online storage Backing up Basic troubleshooting Processing Test and improve 3

4. Memory and storage 4

5. What are memory and storage? 5

6. Advertisements 6 April 2017 Memory Storage April 2017 Where the advert refers to RAM it indicates memory . Terms such as HDD (Hard Disk Drive), SSD (Solid State Drive) and DVD writer refer to the storage on the computer. SSDs are much faster at transferring data than hard drives. A computer with an SSD will perform much faster than the same computer with a hard drive.

7. Online storage Online storage - disk space that is allocated to you on a server on the internet 7

8. Online storage 8

9. Online storage 9 Advantages Accessible from anywhere on any device with internet access. Saves space on the user’s computer. Changes all in one place – all devices always the latest version Backup and security managed by storage provider Easy to share files with other people Data is still accessible even if your computer ‘crashes’ or is stolen

10. Online storage Disadvantages 10 Only accessible when you have an internet connection Especially large files may not be usable over slow connections Pay for the bandwidth used to upload and download (and for extra storage space) No control over backup and security If the company goes bankrupt you may lose all your data

11. Online storage/Cloud computing Online storage differs from Cloud Computing - it only involves storing files online. Real cloud computing means that actual programs run on a server on the internet and you access those programs through your web browser. 11

12. Backing up Must be easy to restore the data from the backup media quick and easy to make a backup 12 Popular back-up strategies

13. How to write CDs and DVDs 13 Open Windows/File Explorer. Select files and folders that you want to write to CD or DVD. Drag the files/folders to icon of the CD or DVD drive in the left column of Windows Explorer. Repeat 2 and 3 until you have filled the disc (around 700 MB for a CD or 4.7 GB for a DVD) / copied all the files you need. Right-click on the drive and choose the ‘Burn’ option. Using CDs or DVDs for backup purposes is not recommended. They are slow and unreliable.

14. Backups and Archives 14 Backups are essential. Archiving is not.

15. Basic troubleshooting 15

16. Basic troubleshooting 16

17. Basic troubleshooting 17

18. Basic troubleshooting 18

19. Processing 19

20. Processing 20

21. How the computer starts itself up 21 START ROM instructions CPU Boot program    Loads operating system

22. Test and improve 22 Use the summary for own revision

23. Written module activity 23