what does addressable memory mean?
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Each memory location has an address, and each address refers to a single memory location. The maximum size of addressable memory has a limit, which is most likely to be defined by the word size of the chip.
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A 32-bit system can access 232 memory addresses, i.e 4 GB of RAM or physical memory. A 64-bit system can access 264 memory addresses, i.e actually 18-Quintillion bytes of RAM. ... What's important is that a 64-bit computer (which means it has a 64-bit processor) can access more than 4 GB of RAM.
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a bit is te smallest unit it is either on or off. A byte is the smallest piece of addressable memory usually 8 bits but other sizes are possible. A word is usually the size of n integer (int) — the common size to manipulate integers.
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To hazard a guess, it literally means PC as in ram for personal computers, it could mean Precharged, a common state or requirement in SDRAM, or it could mean Pipelined Clocking, as SDRAM had the benefit of pipelining over asynchronous DRAM.
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TCAM. Stands for Ternary Content Addressable Memory. Think of it as a dedicated hardware used for a specific service or multiple services. For instance, in the 6500 - ACLs are stored in TCAMs. This allows the switch to perform faster because ACLs are not consuming shared.
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Primary memory is directly accessible by Processor/CPU. Secondary memory is not directly accessible by the CPU. ... The memory devices used for primary memory are semiconductor memories. The secondary memory devices are magnetic and optical memories.
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Auxiliary Memory. An Auxiliary memory is known as the lowest-cost, highest-capacity and slowest-access storage in a computer system. It is where programs and data are kept for long-term storage or when not in immediate use. The most common examples of auxiliary memories are magnetic tapes and magnetic disks.
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A pointer is the address of that structure (or anything else) in memory. The structure is a “blueprint” of how to store the data in memory, the pointer is the location of the data in memory. The idea of a pointer is that rather than pass the data around your program, you pass the location of the data.
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Functional addressing is an addressing scheme that labels messages based upon their operation code or content. Physical addressing is an addressing scheme that labels messages based upon the physical address location of their source and/or destination(s).
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A 32-bit system can access 232 memory addresses, i.e 4 GB of RAM or physical memory. A 64-bit system can access 264 memory addresses, i.e actually 18-Quintillion bytes of RAM. In short, any amount of memory greater than 4 GB can be easily handled by it.
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The term "memory" usually means RAM (Random Access Memory); RAM is hardware that allows the computer to efficiently perform more than one task at a time (i.e., multi-task). The terms "disk space" and "storage" usually refer to hard drive storage.
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Memory Caching A memory cache, sometimes called a cache store or RAM cache, is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory. Memory caching is effective because most programs access the same data or instructions over and over.
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A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before using it to store any variable address.
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['Address bus - carries memory addresses from the processor to other components such as primary storage and input/output devices. ... ', 'Data bus - carries the data between the processor and other components. ... ', 'Control bus - carries control signals from the processor to other components.']
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SRAM stands for Static Random Access Memory. It does not have to be refreshed with electric charge. It is faster than DRAM because the CPU does not have to wait to access data from SRAM. SRAM chips utilise less power and are more complex to create, making it much more expensive than DRAM.
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Generally yes, All pointers to anything, whether they point to a int or a long or a string or an array of strings or a function, point to a single memory address, which is the same size on a machine.
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MemFree: The amount of physical RAM, in kilobytes, left unused by the system. ... The estimate takes into account that the system needs some page cache to function well, and that not all reclaimable slab will be reclaimable, due to items being in use.