1. 缓冲：
缓冲区是一个临时存储区域，通常是内存中的一个块，在等待从输入设备或输出设备传输时放置项目。它主要用于输入/输出过程。例如，如果您要打印一个长文档，您不希望 CPU 等待询问打印机“您准备好再打印一段了吗?”相反，CPU 将用文档数据填充内存缓冲区，指示打印机打印缓冲区内容，然后返回其他业务。
2.缓存：
高速缓存是计算机中插入 CPU 和主内存之间的更小、速度更快的内存组件。为了使这种安排有效。缓存需要比主存快得多。这种方法比使用快速存储设备来实现整个主存储器更经济。
缓冲区和缓存的区别：
| S.No. | BUFFER | CACHE |
|---|---|---|
| 1. | Buffer is used to compensate for difference in speed between two processes that exchange or use data. | Cache is a smaller and fastest memory component in the computer. |
| 2. | It is mostly used for input/output processes. | It is used during reading and writing processes from the disk. |
| 3. | It is a normal storage area on ram for temporary storage. | It is a high-speed storage area for temporary storage. |
| 4. | It stores the original copy of data. | It stores the copy of original data. |
| 5. | It is always implemented in the main memory (RAM). | It is implemented in RAM as well as in Disk. |
| 6. | It is made from dynamic ram. | It is made from static ram. |
| 7. | It does not increase the accessing time. | It increase the accessing speed of CPU. |
| 8. | It can be used in keyboards to edit typing mistakes . | It does not posses such feature. |