The term static differentiates SRAM from DRAM (dynamic random-access memory) which must be periodically refreshed. SRAM is faster and more expensive than DRAM; it is typically used for CPU cache while DRAM is used for a computer's main memory. 1 Applications and uses 1.1 Characteristics 1.1.1 Clock rate and power.
A biological key is a list of questions that can categorize the items.
A candidate key is a combination of attributes that can be uniquely used to identify a database record without referring to any other data. Each table may have one or more candidate . One of these candidate keys is selected as the table primary key.