Class 9 Data Storage & Memory

Class 9 Data Storage & Memory

Semiconductor Memory

Bits (billions)/chip

Moore’s Law: number of transistors double every ~2.5years

Dynamic Random Access Memories (DRAMs)

DRAM writing & reading

DRAM writing & reading

DRAM vs SRAM

Read Only Memory (ROM)

Read Only Memory (ROM)

Read Only Memory (ROM)

Programmable Memory (PROM)

Programmable Memory (PROM) (by burning out fuses)

Moore’s Law: number of transistors double every ~2.5years

DRAM Capacitors; how small?

Archival storage

Magnetic Disks

Increasing the Storage of Magnetic Disks (~10-100x cheaper)

Storage

Optical Disks ( ~ 3.5GB)

Optical Storage - holographic

What do you need for an “intelligent” system

Putting it all together: the PC

Example: Intel 80X86

Speed performance (MHz); major problem is heat dissipation



BACK TO HOME PAGE



For questions and comments contact eskinder@yale.edu