https://cienciaprogramada.com/tags/rom/ Recent content in ROM on Ciência Programada Hugo -- gohugo.io en contato[@]cienciaprogramada.com.br (Francisco Bustamante) contato[@]cienciaprogramada.com.br (Francisco Bustamante) © 2026 Francisco Bustamante Thu, 09 Apr 2026 00:00:00 +0000 https://cienciaprogramada.com/2026/04/memory-hierarchy/ Thu, 09 Apr 2026 00:00:00 +0000 contato[@]cienciaprogramada.com.br (Francisco Bustamante) https://cienciaprogramada.com/2026/04/memory-hierarchy/ If a register access took one second, a main memory access would take four and a half minutes, and a hard disk access, more than a year. We will see the memory hierarchy, cells, addresses and buses, the sizing formulas, and SRAM, DRAM, ROM and ECC.