Читать книгу Cryptography, Information Theory, and Error-Correction - Aiden A. Bruen - Страница 26

Computers today often have 4, 8, 16, 32, or more GBs of main memory (RAM). Solid‐state drives (SSDs) that are much faster (but more expensive) than hard drives (HDDs) are now prevalent in desktops and laptop computers. The memory hierarchy of a computer is discussed in Section 17.2.