Like they said, there's nothing you can use to earn $2 daily using an old computer or android devices.
But since you're a newbie (
Yes Jrs are newbies too).
You might be talking about those micro-earnings like faucet sites that rewards Satoshi.
Try
coinpot.co, after registration, go to bitcoins (menu) and select "
Mine Bitcoin" to earn some satoshi depending on your hashrate.
Take note that this is not a "
Real" mining operation but a kind of a gimmick (
CoinHive-based), but the site rewards you satoshis instead of XMR.
You can claim to their faucets too, use the developer's referral links (
from their ANN Thread) if you want to "
thank" them at least.
Just don't expect higher than $1 a day using that old computer alone (
You'll pay more electric bill than the reward 
).
@OP - You can try this one since it is very easy to deal with. All you need to do is click the "Mine" button and Presto! You can now earn fractions of btc (which is satoshi) passively. But, there's a tendency you might encounter technical problems such as having a lag computer because its GPU is not high enough to suit for mining purposes.
When it comes to claiming free satoshis in their faucets (e.g moonbitcoin, moonlitecoin etc.), you need to visit and claim from time to time. If you are thinking that waiting for long and hoping that the reward you'll get will accumulate and became big then I'll tell you frankly, it's not; because the rate of giving rewards becomes slower as you less frequently claim.
Like what sir nc50lc said, you cannot earn $1 - $2 through this. Aside from getting larger electric bills than to your rewards, this is also time-consuming compare to other ways of earning btc.
Furthermore, I know a mobile app where you can mine directly. Actually this app is a digital wallet for Electeoneum that has a built-in miner. But again, it only gives very small amount per day.
