Submer Academy

the central processin unit (cpu) represents the brains of a pc. from an architectural point of view, a cpu is usually composed of few cores (on the contrary of a gpu), with lots of cache memory. in terms of capacity, a cpu is less powerful than a gpu, being able to handle only a few software threads at a time. cpu are good for serial processing.

open bath immersion cooling is a datacenter cooling technique that implies fully submerging servers in dielectric coolant fluid. it's called "open bath" because servers are placed side-by-side in large tanks that assimilate bath tubs. these baths operate at atmospheric pressure and allow the coolant fluid to be pumped through the hardware components or servers submerged in it.

immersion cooling, also known as liquid submersion cooling, it is the practice of submerging computer components (or full servers) in a thermally, but not electrically, conductive liquid (dielectric coolant). liquid submersion is a routine method of cooling large power distribution components such as transformers. still rarely used for the cooling of it hardware, this method is slowly becoming popular with innovative datacenters the world over. it hardware or servers cooled in this manner don't require fans and the heat exchange between the warm coolant and cool water circuit usually occurs through a heat exchanger (i.e. heater core or radiator).

overclocking is the action of running a computer component (tipically it is a cpu or a gpu,but it can be another component) and run it a higher speed than the manufacturer designed it for.

operating expenditure (opex) corresponds to those expenses that a company incurs on a daily basis to run a business or system. the index clearly depends on the type of industyr. for datacenters, two key factors determining the opex are maintenance and electricity costs.

capital expenditures (capex), are funds that a company uses for acquiring, upgrading or maitaining certain physical assets (e.g. buildings, equipment, warehouse, technology, etc.) in the datacenter industry, some of the elements that concur to determine the capex are: design, real-estate, construction, it hardware, cables, cooling, piping etc.