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Memory Questions and Answers (Q&A)

Virtual and Cache memory are two types of memory out of many that exist. Both differ in some ways. Virtual memory is a type of memory used by the computer to extend the capacity of its memory whenever it is dealing with programs that are larger than the main memory. This makes it easy for the memory to execute files that are larger than the main memory.

Cache memory, on the other hand, is used by the CPU to get data from the main memory by reducing the average time it would take. It is not as big as the main memory, but it helps in processing whatever you want very easily. The virtual memory is controlled by the operating system as a technique for memory management. Cache memory is part of the storage unit. Cache memory stores various data from all frequently used items in the main memory so that the CPU can process the data very faster.

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Pointer and reference are two important variables which can be used by a compiler in knowing the storage of an item. However, there are many differences between pointer and reference. A pointer is used in storing the memory address of another object or variable. The use of pointers to store the memory address of variables will reduce the problems that are usually encountered by programmers in identifying the needed variables, and this will also enhance the manipulation of those variables.

A pointer is used to represent values for easy manipulation. Reference, on the other hand, is used in storing the memory address of an existing variable. The idea behind the use of reference is that, it offers programmers the opportunity to use the second variable which already shares the same memory address as the first variable. All the contents in the first variable will also be found in the second variable, which means the second variable can be used in performing different operations just as the first variable.

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Being color blind doesnt help on this test.if you cant ser it that sucks.

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A process of encoding, storing,retrival

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In order to memorise any material you must first encode it. This is the first stage of memory. Encoding means processing the material, that is, 'taking in' the sound, sight and meaning of the material. The second stage is storing the material. Initially, the information is held in short term memory, but this only lasts for 30 seconds. If you write down, repeat aloud, or act in some such way upon the material you are enabling the material to be stored more certainly.

The last stage of memory so that the material enterslong term storage, what we refer to as long term memory, is retrieval. The act of deliberately recalling an item, activates neuronal transmission/ Basically, we experience a stimulus, we make sense of it, we recall it. Encoding, storage, retrieval. It is important to understand these stages if we want to aid our memorisation and ensure that material enters long term memory.

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R. Jones

Curious about the World

From the abbreviations, you can already guess that these two are types of RAM or Random Access Memory. These are types of RAM that may have been more popular in the past. Over the past years, more things have been offered to people so they would like to try things that can be considered to be more modern. These two have differences too.

SDRAM is still the prototype for the RAM that is available in laptops and computers right now. RDRAM is considered to be an alternative type of RAM for people who are not too sold on SDRAM. The main difference between the two has to be the price. The modules for RDRAM are known to be thrice the amount of the modules of SDRAM.

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The memory of a computer is classified into two categories, which include a primary and secondary memory. Primary memory is the main memory of a computer where the currently processing data populates. The secondary memory of the computer is ancillary memory, where the data that has to be stored for a long time or is kept permanently. The speed accessed from primary memory is faster. Secondary memory is slower. The initial costs are more than the secondary. Also, the memory of the secondary is larger than the primary.

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