List and briefly define three newer nonvolatile solid-state memory technologies|Quick homework help

Posted: January 29th, 2023

Question 1

Application of Amdahl’s Law:

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Answer the following two questions and show your work:

  1. What is the overall speedup if you make 15% of a program 85 times faster?
  2. What is the overall speedup if you make 85% of a program 15 times faster

Question 2

Consider a dynamic RAM that must be given a refresh cycle 64 times per ms. Each refresh operation requires 150 ns; a memory cycle requires 250 ns.

What percentage of the memory’s total operating time must be given to refreshes? Explain your answer and show your calculations.

Question 3

List and briefly define three newer nonvolatile solid-state memory technologies.

Question 4

What is the difference between DRAM and SRAM in terms of application? What is the difference between DRAM and SRAM in terms of characteristics such as speed, size, and cost? 

SOLUTION

  • Phase-change memory (PCM) is a non-volatile memory technology that utilizes the unique properties of chalcogenide materials, which can exist in either an amorphous or crystalline state. These materials can be rapidly switched between these two states using electrical pulses, allowing data to be stored as either a crystalline or amorphous state.
  • Resistive random-access memory (RRAM) is a type of non-volatile memory that utilizes a resistor to store data. The resistance of the resistor is changed by applying a voltage, which causes a physical change in the material. This change in resistance can be used to represent the binary data of 1 or 0.

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