Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Model | Memory ( RAM ) | Storage ( flash ) | Operating system version | Memory card | Weight, dimensions | Retail availability |
| --- | --- | --- | --- | --- | --- | --- |
| 770 | 64MB | 128MB | OS2005/6, OS2007/8HE | 1 RS-MMC slot II | 230g, 141x79x19mm | November 2005 |
| N800 | 128MB | 256MB | OS2007/8 | 2 x SD slots with SDHC | 206g, 144x75x13(/18)mm | January 2007 |
| N810 | 128MB | 256MB + 2GB internal | OS2008 | 1 x MiniSD slot with SDHC | 226g, 128x72x14mm | October 2007 |
| N810 WiMAX Edition | 128MB | 256MB + 2GB internal | OS2008 | 1 x MiniSD slot with SDHC | 229g, 128x72x16mm | April 2008 |
| N900 (not marketed as an Internet Tablet) | 256MB | 256MB + 32GB internal | Maemo 5 | 1 x microSD slot with SDHC | 181g, 110.9×59.8×18mm | November 2009 |
| N9 (not marketed as an Internet Tablet) | 1GB (mobile DDR) | 512MB internal + 16 or 64GB on board | MeeGo 1.2 "Harmattan" | no memory card slot | 135g, 116.45x61.2x12.1mm | September 2011 |
Question:
How much memory (RAM) does the Maemo 5 operating system have?
Answer:
256MB