Understand the memory basic component (BC) Understand how a 3 bit 4 word memory
ID: 3864392 • Letter: U
Question
Understand the memory basic component (BC) Understand how a 3 bit 4 word memory is constructed Know the Difference Between RAM (Random Access Memory) and ROM (Read Only Memory) Use Logisim to Build a 3 bit 4 word memory and show how it works Use Logisim to store and Read from the implemented RAM and ROM modules in the Library What would you have to change in the memory design to have a 16 word memory with 3 bits/word? What would you have to change to increase the number of bits/word from 3 to 4 in the memory? Show the design of a 16 word ROM with 8 bits per word using array logic.Explanation / Answer
Memory basic component:-
There are THREE main components of memory: Short Term Long Term and Active Working Memory.
Short Term Memory:-the person manages to save information in small packets, up to a dozen items and for a few minutes until distracted.
Long Term Memory:-It depends on association and recall. This is a permanent storehouse of unlimited capacity.
Active Working Memory , for example is the working memory that includes taking notes in a classroom during a lecture or trying to remember a phone number someone has just given you while listening to that person give further instructions.
Difference between RAM and ROM:-
There is one major difference between a ROM and a RAM chip. A ROM chip is
non-volatile storage and does not require a constant source of power to retain information stored on it. When power is lost or turned off, a ROM chip will keep the information stored on it. In contrast, a RAM chip is volatile and requires a constant source of power to retain information. When power is lost or turned off, a RAM chip will lose the information stored on it.
ROM chip is used primarily in the start up process of a computer, whereas a RAM chip is used in the normal operations of a computer after starting up and loading the operating system.
Writing data to a ROM chip is a slow process, whereas writing data to a RAM chip is a faster process.
RAM chip can store multiple gigabytes (GB) of data, up to 16 GB or more per chip. A ROM chip typically stores only several megabytes (MB) of data, up to 4 MB or more per chip.
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