Looking for online/computer work

I was on disability but now as I am 65 am on a pension and I would like to make an additional of approximately 2 to $400 per week on the Internet - (OR no more than `12,000 per year). Being realistic I can average 1-2 hours a day or 10-15 hrs per week (sometimes more) I am reasonably good at computers (especially WORD , copy & paste , designing and other small tasks.) As my medical conditions are such I can only do sit down work and definitely not any kind of manual or physical labour. If anyone knows of any way that is legitimate and not too hard please let me know. Thank you Craig