Random Access Memory(RAM) || B Tech , BCA , BSc || #ddu

#Computer

RAM stands for Random Access Memory and is a read-write memory of a computer. In a Random Access Memory, any location can be accessed in random manner and the access time is same for each memory location. RAM is made up of different ICs, are mounted on a printed circuit board. Files and programs are loaded into memory from external media like hard disk, RAM is a hardware location in the computer where the operating system, application programs, and data in current use are kept so that they can quickly reached by the computer’s processor.

Types Of RAM

Random Access Memory is of two types :

• Static RAM (SRAM) Static RAM consists of internal flip-flops that store binary information. The stored information in the SRAM remains valid as long as power is applied to the unit. SRAM is easier to use and has shorter read and write cycles, that is, high speed. Static RAMs are costlier and consume more power. SRAM is often used as cache memory due to its high speed.
• Dynamic RAM (DRAM) Dynamic RAM stores binary  information in the form of electric charges that are applied to capacitors. The stored charges on the capacitors tend to discharge with time.The capacitors must be periodically recharged by refreshing the dynamic memory. This refreshing is done by cycling through the words every few milliseconds to restore the decaying charge. DRAM has reduced power consumption and lager storage capacity in a single memory chip

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