In computing, DDR3 memory stands for Double Data Rate type three memory. It is a type of memory often used in computers and other electronic devices. It has been in use since 2007. DDR3 memory is neither forward nor backward.
In computing, memory refers to the physical devices used to store programs or data on a temporary or permanent basis for use in a computer or other digital electronic device. PC memory is one of the most integral components of any personal computer. The memory allows programs (like your operating system) to function.