All motherboards include a small piece of ReadOnlymemory (ROM) which is separate from the main system memory used for loading and running software.
所有的主板都包括了一小块的只读存储器rom,它与用于载入和运行软件的主系统内存分离。
3
The expensive and time-consuming work of designing a custom wired chip was replaced by the flexible 4004 microprocessor and the instructions stored in a separate ROM (ReadOnlyMemory) chip.