ocr: Before nultitasking 640 K CPU Uperating of at Memory 8 Mhz. effective throughput = 8 Mhz. After nultitasking: 320 K of Memory CPU Uperating ruming 1 program. at 320 K Memory ruming 1 pgm Simultancousiy! 8 Mhz. effective operating speed of each partition = 4 Mhz.