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Presumably, you mean your browser cache since the CPU caches are flushed automatically and are not under user control. The main reasons you would clear the browser cache would be for privacy, fixing malfunctioning websites or online applications, general PC maintenance, to reclaim space, or to make defragmentation and malware scanning complete faster.
Most of the time, you can safely leave your browser cache alone. Now if you are doing things you don't want others to know you are doing, you might delete the caches, temp files, history, and so on. However, that only helps in terms of living situations. If you commit crimes, the police can not only recover a lot of what you delete, but they can also get your internet activity from your ISP and the sites you use. So while clearing such data can help in terms of your spouse, lover, coworkers, or boss, it won't help you get by with actual criminal activity.
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What type of memory is mostly closely connected to the CPU?
In this instance, you likely mean cache memory, though you could mean RAM, particularly DRAM. Cache memory, like the L1, L2, and L3 processor cache, helps to speed up operations between the CPU and RAM.
How do you identify what is in your computer cache?
You don't identify what is in your computer's cache, because the cache is managed by the hardware and the operating system. To understand the contents, you would need to understand the design of the system, and you would need to do this while the operating system is not running, because the cache is constantly changing. If you are concerned about security, you can set your pagefile to be cleared on shutdown. You can (and should) also design any security sensitive software to use non-paged memory where needed, so that clear-text data is never stored on the hard drive.
What if Cache size is equal to main memory size?
If we took size of cache as large as size of main memory then the main purpose of cache(take less time) would come to end, as larger the cache slower would be it's processing speed.
Would it be better to have on your computer a large cache or large MHZ?
cache should small for super computer.
What is the reason for having a cache memory?
Cache simply is for speeding up the processes already completed, since it is faster than ram, and easier to access. it basically is just for speeding up applications you use often. cache is volatile meaning that it is erased when you turn off your computer.
Why do you clear your browser's cache?
One would clear their browsers' cache if they wanted to be sure that they receive the very latest from the webpage(s) they are visiting.
Why is it that the instructions being executed must be in physical memory of the computer?
When a computer gets ready to execute the next instruction, it pulls it out of memory of some sort or another. first it tries it's local high speed cache RAM, usually a part of the CPU chip. If it's not there, then it looks in the slower speed RAM. If it finds it there, the memory controller pulls a block of memory from RAM to cache then executes it there. If it doesn't see it in RAM, it looks for it in virtual memory, which is actually a part of the hard disk drive. When it finds it there, it pulls a block into RAM, then into Cache memory, where it is executed. Actually, the move from virtual memory to RAM is done way ahead of time, as the controllers see that the computer might need that block of memory in the near future. So you can see, all the instructions are executed in the small high speed cache RAM. This is done for speed. If all the instructions were executed in RAM, as computers once did, they would be 10 times slower. A lot of computer design is optimizing the memory controllers so that almost all of the instructions are executed out of high speed cache, and the processor rarely has to wait for the cache to fill up. If the computer executed out of hard disk space, it would be thousands of time slower.
How do you check cache memory in computer?
To check a computer's physical memory, depending on your version of Windows, you can usually just go to the search bar (click the Windows logo in the lower left corner of the screen and/or keyboard; the search bar is on the menu) and type in RAM; it will show a list of options; click on "Show haw much RAM is installed" or something similar. This is the amount of physical memory you have.
What is the fastest memory technology?
The fastest type of memory would be the registers on the CPU.
What advantage is there to having a CPU with on-chip cache?
The CPU cache exists because modern processors are very very fast. If they had to read from main memory every time they performed a read operation, computers would be limited by RAM speeds. By using a very fast cache, the CPU is able to perform a single read to fill in a cache line, then execute its instructions on that entire cache line very efficiently. There is a cache in between the CPU and main memory for the same reason there is main memory in between the CPU and the hard drive; the CPU is far faster than any storage device on your computer. Without these tiers of increasingly fast (and expensive) memory, we would be limited by HDD read/write speed.
What is meant by cache memory?
In a computer, cache memory is a special type of fast access memory that is between the CPU and the main memory. If the CPU always had to access main memory, it would spend most of its time idle waiting for that memory to respond. But because memory accesses statistically tend to cluster around each other in real programs instead of completely randomly scattering across memory, a single CPU memory access can cause the cache memory controller to perform a fast burst access of main memory including that address to load an entire "line" of cache memory. If a following CPU memory access is in this same "line" of cache memory that has already been loaded, it will not have to wait for the main memory to respond, instead the cache responds first providing the copy it has of that address' contents.Cache memory was originally invented in the late 1950s by IBM for their 7030 Stretch supercomputer (a machine built entirely using discrete germanium transistors, no integrated circuits at all). However all the 7030 documents use the term "virtual memory" for what is now universally called cache memory, and "virtual memory" means something entirely different now.Each cache memory unit is composed of three sections:cache controllercontent addressable memory (CAM)fast access static random access memory (SRAM)The cache controller section contains all the logic circuits that coordinate the operation between the CPU(s), cache, and main memory. The CAM is a special type of memory used to store the memory address of each active cache "line" along with some status bits that is addressed by it contents (not an address number as in ordinary RAM and ROM). The SRAM contains the copies of address contents previously read from main memory, and is addressed through the CAM. Cache memory is organized into levels (L1, L2, L3, etc.) with the L1 Cache closest to the CPU and each additional level further away until the final Cache level connects directly to the memory. The L1 Cache uses the fastest speed SRAM but has the smallest amount of SRAM and each additional level uses slower speed SRAM but has more SRAM than the previous level. The L1 Cache is usually divided into two independent Caches (L1 Instruction Cache and L1 Data Cache) and is dedicated to supporting only one CPU but each additional level is usually a single Cache (shared by both instructions and data) and in systems having multiple CPUs may be shared by two or more CPUs. In systems having multiple CPUs the cache controllers must implement special bus protocols to coordinate line invalidations and updates to prevent some of the CPUs from accessing obsolete Cache contents from its Caches when a different CPU that does not use those Caches has modified memory that is mapped to both its local Caches and the other CPUs local caches.Proper design of a Cache memory system for a computer requires extensive simulation of typical real code expected to be used on the system. Any problems found must be corrected, so that the Cache usage will remain even and balanced, and anticipated performance verified.
Is a DRAM variation that is designed for computers with multi-core processors?
That would be DDR-3 memory. Some multi-core systems use DDR-2 memory. Then of course there is cache memory, but that is a variation of SRAM, and it has been used ever since the 386 or 486 machines. Nowadays, cache memory is not in discrete chips, but a part of the processor. Placing the cache memory and memory controller on the CPU die greatly improves the throughput.
