You must save work done using a computer onto a storage device so that it can be kept when the computer is turned off. Some work will need more memory space than others – a video clip will need more than just a picture for example. How much space data takes up is measured in these units:
| Unit |
The Same Size As... |
| 1 Byte |
Enough memory to store 1 letter |
| 1 Kilobyte (Kb) |
1,024 Bytes – Enough memory to store a few sentences of text |
| 1 Megabyte (Mb) |
1,024 Kilobytes – Enough memory to store a couple of images |
| 1 Gigabyte (Gb) |
1,024 Megabytes – Enough memory to store lots of music or a computer program |
It is important you check that there is enough memory space on a storage medium to save your work:
| Storage Medium |
Memory Available |
| Hard Disk |
 |
At least 60 Gb |
| Flash Memory |
 |
Usually between 1 and 8 Gb |
| CD-RW |
 |
About 700 Mb |
You can delete or remove any files no longer needed to free up space.
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