Primary memory is known as random access memory(RAM) and simple named memory.

主存储器又称为随机存取存储器，简称内存。

A computer system could not operate without main memory, also called internal memory, primary memory, primary storage, random access memory(RAM), or simply memory.

没有主存，一个计算机系统则无法工作，主存又可以称作是内存，基本内存，基本存储，随机存储器，或单内存。

The explanations for recency effects in immediate free recall are reviewed in this paper. Recency effects have often been attributed to output from primary memory.

本文对自由回忆中新近效应的所有各种解释提出了所依据的记忆理论，加以分析比较。

A computer system could not operate without main memory, also called internal memory, primary memory, primary storage, random access memory (RAM), or simply memory.

计算机系统的运行不能离开主存储器，也被称为内存、主存、基本主存，及随机存储处理器(RAM)，或简单记忆体。

The main reason for introducing virtual memory was therefore not simply to extend primary memory, but to make such an extension as easy to use for programmers as possible.

主要原因介绍虚拟内存，因此不只是初级的内存扩展，但以这种延长使用起来更简单，程序员可能。