Memory ...
			Programs and their data must be in the memory while they are running
	Memory locations
																																										memory addresses
		0					1						2							3								4									5						6					7						8				9						10				11
								G								o							D								a								w							g					s					!				!					0						...
																																												memory contents
																	byte=8 bits
																																																					Groups of four bytes are a word
									0			1					0				0				0				1					0				0