The address bus is used by the CPU or a direct memory access (DMA) -enabled device to locate the physical address to communicate read/write -commands. Memory management Unit (MMU) or Memory Control -Circuitry (MCC) or Memory Control Unit (MCU) is the set of elec- -tronic circuits present in the motherboard which helps the processor -in reading or writing the data to or from a location in the RAM. All -address buses are read and written by the CPU in the form of bits.An -address bus is measured by the amount of memory a system can re- -trieve. A system with a 32-bit address bus can address 4 gigabytes of -memory space.
+This manual guides a beginner to computer architecture through the basics of instruction execution at assembly level and provides insight to the computer organization. The course objective aims to make the student proficent in NASM Assembler and familiarize with x86 architecture. We express our gratitude towards Dr. Jayaraj P.B for the opportunity and humbly request for your valuable feedback.