Hardware Organization Main Memory Temporary storage device Holds both a program and the data while the processor is executing the program Physically, it is a collection of Dynamic Random Access Memory(DRAM) chips Logically, it is a linear array of bytes with unique address starting at o5 Hardware Organization • Main Memory – Temporary storage device – Holds both a program and the data while the processor is executing the program – Physically, it is a collection of Dynamic Random Access Memory (DRAM) chips – Logically, it is a linear array of bytes with unique address starting at 0