DDR RAM, which stands for Double Data Rate Random Access Memory, comes in different generations like DDR3, DDR4, and DDR5. Each newer generation generally offers higher speeds and better performance. For example, DDR4 is faster and more efficient than DDR3, and DDR5 improves even further on speed and efficiency.

As for SSDs (Solid State Drives), they provide storage for your PC. They are much faster than traditional hard drives when it comes to reading and writing data, which means your system boots up quicker and applications load faster. The space is essentially the storage capacity, and the speed is how fast data can be transferred.

It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.