Computer memory device in the form of a silicon chip commonly used to provide the immediate-access memory of microcomputers. DRAM loses its contents unless they are read and rewritten every 2 milliseconds or so. This process is called refreshing the memory. DRAM is slower but cheaper than SRAM, an alternative form of silicon-chip memory.
The blue and white triband is based on the flag of the Central American Federation (CAF), a grouping of African states imposed by the British government in 1953. The stars represent the Federation's five original members. Effective date: 18 January 1949.