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Computer Science
Semiconductor memory two stable states, which are represented by the binary 0 and1. They can get written into a single state and allow for the reading and sense of the state.
DRAM is used for the main memory as it is fast and can be accessed easily. On the other hand, SRAM is used for cache memory since it is volatile, and data is easily lost in a power outage. SRAM is more expensive than DRAM due to the use of flipflops.
DRAM is considered analog as it only uses transistors and capacitors, whereas SRAM is a digital RAM due to its use of flipflops.
EPROM stands for erasable programmable memory. It is a read-only kind of memory that can be erased by ultraviolet rays allowing for it to be rewritten. EEPROM can be erased using an electrical charge but can be written without having to erase previous content. This is achieved by addressing specific bytes only. Flash memory is erasable by electric charge but does not allow for adjusting at the byte level. It also allows for the block memory to get erased, sparing the entire chip. A parity bit is an additional bit which helps in checking for error within a memory compartment.