งานนำเสนอเรื่อง: "Memory Organization Microprocessor and Interfacing 261313."— ใบสำเนางานนำเสนอ:
Memory Organization Microprocessor and Interfacing
CPU MHz 8/16 Bit 1M RAM
CPU MHz 32 Bit 8M RAM
Pentium 133 MHz 32 Bit 16M RAM
Pentium MMX 200 MHz 32 Bit 48M RAM
Pentium II 366 MHz 32 Bit 128M RAM
Pentium M 1.6 GHz 32 Bit 512M RAM
Core2 Duo 2.0 GHz 32/64 Bit 4G RAM
Core i – 1.86 GHz 32/64 Bit 4G RAM
What has changed the least?
MHzRAM CPU Bits
What does “Bits” mean?
A CPU “bits” is typically defined by: ALU Size How many bits can be computed at one time? Bus Size How many bits can be transferred on the bus? Memory Address Size How many address bits are in the instruction?
How many bits Is this PIC CPU?
int16 i; i=1; 0017: BCF : CLRF : MOVLW A: MOVWF i = i+2; 001B: MOVLW C: ADDWF 21,F 001D: BTFSC E: INCF 22,F 16-bit operation on a 8-bit CPU Microchip PIC16 series
ปี Amount of RAM (GB) in a typical computer About 4TB in 2025
64-Bit Architectures IA-64 AMD 64, EM64T Or X86-64 True 64bit CPU Hybrid 32/64 bit CPU
A hybrid 32/64 bit system Has the benefits of a 64-bit programs Can also run older 32-bit programs 32-Bit programs will not benefit from the 64- bit architecture Architecture not as clean as true 64-bit systems