POW, POS, ICO and RoS

[TheStalker]

What this means? I always see someone talking about this POW, POS, ICO and RoS and I don't know what it is, can someone explain? Thank you. 

[kampretkabur]

POW = proof of work
POS = proof of stake
ICO = presale
Ros = mawar  ( dont know what this is)

[TheStalker]

Yea, thank you, but what is Proof of Work and Proof of Stake?

[unholycactus]

The bitcoin wiki can help you a lot for these kinds of question.

The PoW function in Bitcoin is used for block generation. Mining power is measured by how fast your computer can check hashes.
PoS serves the same purpose, but instead, mining power is measured by how many coins you hold.

[gentlemand]

Proof of Work is the expenditure of resources - electricity and effort by your machine - to mine new coins and secure the transactions for existing coins via the process of creating those coins.

Proof of Stake coins are usually created all at once and secure themselves and earn fees by asking owners to prove ownership of a certain amount of coins instead of proving an amount of work.

PoS is less wasteful as there's no electricity or machinery used but lots have doubts about its security.

[OBAViJEST]

Proof of Stake coins are usually created all at once and secure themselves and earn fees by asking owners to prove ownership of a certain amount of coins instead of proving an amount of work.

PoS is less wasteful as there's no electricity or machinery used but lots have doubts about its security.

I don't get how the coin actually benefits from POS. What's the point of proving ownership? You can do that without having to keep your coins in the wallet...i don't get it

[kampretkabur]

Proof of Stake coins are usually created all at once and secure themselves and earn fees by asking owners to prove ownership of a certain amount of coins instead of proving an amount of work.

PoS is less wasteful as there's no electricity or machinery used but lots have doubts about its security.

I don't get how the coin actually benefits from POS. What's the point of proving ownership? You can do that without having to keep your coins in the wallet...i don't get it

read it here
https://en.bitcoin.it/wiki/Proof_of_Stake

hope it helps

[ikydesu]

What this means? I always see someone talking about this POW, POS, ICO and RoS and I don't know what it is, can someone explain? Thank you. 

https://en.bitcoin.it/wiki/Proof_of_work
https://en.bitcoin.it/wiki/Proof_of_Stake
ICO
RoS? Return on Sales

[Winalunt]

What this means? I always see someone talking about this POW, POS, ICO and RoS and I don't know what it is, can someone explain? Thank you. 

taking the example of clam and bitcoins :-
CLAM is a "proof of stake" coin, whereas Bitcoin is "proof of work".

To make a new Bitcoin block you need a bunch of ASIC miners burning a lot of electricity. Each new block you make earns you 25 BTC. That's called mining.

To make a new CLAM block you need a bunch of CLAM - just holding the currency is enough to allow you to make new blocks. Each new block you make earns you 1 CLAM. That's called staking.

[Blawpaw]

There are several projects introducing new concepts to mining. Take it as example Wankcoin with proof of wank and Geocoin with geopositioning proof...
there are other concepts such as Proof of participation, Proof of existence

[foxkyu]

What this means? I always see someone talking about this POW, POS, ICO and RoS and I don't know what it is, can someone explain? Thank you. 

https://en.bitcoin.it/wiki/Proof_of_work
https://en.bitcoin.it/wiki/Proof_of_Stake
ICO
RoS? Return on Sales

It could be. Or ROS is just another Altcoin ROS coin
https://bittrex.com/Market/Index?MarketName=BTC-ROS