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 primary key is either an existing table column or a column that is specifically generated by the database according to a defined sequence. The primary key concept is critical to an efficient relational database. Without primary key and closely related foreign key concepts, relational databases would not work. Almost all individuals deal with primary keys frequently but unknowingly in everyday life.