How much is 1 op?

Excuse me, I'm a bit puzzled about something. Could you please help me understand? I've been hearing a lot about cryptocurrencies lately, and there's a term that's been popping up frequently - '1 op'. I'm not quite sure what it means or how it's valued. Could you enlighten me? Is it a specific amount of a certain cryptocurrency, or does it have a more general meaning? If it's a monetary value, could you tell me approximately how much it is worth? I'm trying to wrap my head around this new world of digital assets, and your insights would be greatly appreciated.