I would like to trade in crypto currency.But I dont have good idea about it.And also I know about signals.
1.How it comes from?
2.what extent can we trust them?
3.Is there any way to generate them?
If some one good at this please mention about this.
To answer your briefly:
1) It is a digital asset and each cryptocurrency is different in its origin. Some of them are "mined" and some of them are pre-mined. There could be a limit or hard cap to the total supply. You need to understand at first what blockchain is, then what a cryptocurrency is and then indulge in trading. This is important so that you dont get fooled.
2) You can 100% trust it in terms of any transaction as the technology underneath ensures it. In terms of trading, it is suspectible to all the flaws and risks including being the fact it is a bubble and it might burst. Different people have different opinion about this. Always remember by having a bitcoin you are having a currency, it is not a commodity or share to the company. In the physical world, some stores do accept bitcoin and some other crypto but is really really low.
3. Yes, Look at Q1. If a coin is mineable, you can mine to generate them by sacrificing your electricity cost. Remember, Bitcoin and likes of it cannot be profitably mined from your typical laptop.