RAM
Short-term memory
temporary data that we want to access quickly data is NOT permanent, rather it is volatile; once we power off the machine, the data stored inside RAM is cleared
There are lots of types of RAM, most common is DRAM, or Dynamic Random-Access Memory
Dynamic Random-Access Memory (DRAM) - when a 1 or 0 is sent to DRAM, it stores each bit in a microscopic capacitor that is either charged or discharged. These semiconductors are put into chips placed on the RAM and store our data
There are also different types of memory sticks that DRAM chips can be put on.
- the more modern Dual Inline Memory Module DIMM sticks have different sizes of pins on them
- after DRAM was created, manufacturers created Synchronous DRAM (SDRAM)
- in today’s system, we use another type of RAM called Double Data Rate SDRAM (DDR SDRAM) or (DDR)
- DDR1
- DDR2
- DDR3
- DDR4 - fastest available short-term memory for computer DDR5 was made commercially available in 2020