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:
| Name | Actual version | System | Platform | License |
| --- | --- | --- | --- | --- |
| MESS | 0.147 | Various computers and consoles | Cross-platform | Custom |
| 6502Em | 4.00 | BBC Micro , BBC Master , Acorn Electron | Windows , RISC OS | Commercial |
| ElectrEm for Windows, DOS, UNIX/Linux and Mac OS X | 0.6c | Acorn Electron | Windows , OS X | Open source |
| Elkulator | 1.0 | Acorn Electron | Windows , DOS , Linux | GPL |
| ElkJS | n/a | Acorn Electron | Cross-platform | Open source |
Question:
Which system is named ELKJS?
Answer:
Acorn Electron