1)what is the difference between buffer and cache?

Question

2)what are the things nedded to do after buying new comp?i mean what softwares i have to download etc .......
plz................

Answer 1

Since buffer/cache have been answered sufficiently, I'll address the programs you need (all free) and where you can get free computer help:



LavaSoft's AdAware 2007:

http://www.lavasoftusa.com/products/ad_aware_free.php



Spybot Search & Destroy:

http://www.safer-networking.org/en/index.html



Anti-Virus Programs -



AVG:

http://free.grisoft.com/doc/28415/lng/us/tpl/v5



AVAST:

http://www.avast.com/eng/download.html



ClamWin:

http://www.clamwin.com/content/view/18/46/



RogueRemover Free 1.24 :

http://www.majorgeeks.com/RogueRemover_d5360.html



Windows® Defender:

http://www.microsoft.com/downloads/details.aspx?FamilyId=435BFCE7-DA2B-4A6A-AFA4-F7F14E605A0D&displaylang=en



ZoneAlarm Firewall:

http://www.zonealarm.com/store/content/catalog/products/sku_list_za.jsp



All free!



***************************************************************



Use these Guides and Tutorials to clean pretty much 70% or more of the malware:



http://tinyurl.com/2jvph7



If you still have problems with malware, then follow the instructions on this section of the forum:



http://tinyurl.com/25eu6w



These people are very, very good and very busy so please be patient. If you do not get any help within 3 days, please post here:



The Waiting Room - http://tinyurl.com/3cuxxu



It is free help and registration. Should you have any other computer problems, check through the different sections of the forum and post in the correct one:



GeekstoGo.com - http://tinyurl.com/o57mw



Ron

Answer 2

buffer:

In computing, a buffer is a region of memory used to temporarily hold data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a keyboard) or just before it is sent to an output device (such as a printer). However, a buffer may be used when moving data between processes within a computer. This is comparable to buffers in telecommunication. Buffers can be implemented in either hardware or software, but the vast majority of buffers are implemented in software. Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler.





cache:

In computer science, a cache (pronounced /ˈkæʃ/, like "cash" [1]) is a collection of data duplicating original values stored elsewhere or computed earlier, where the original data is expensive to fetch (owing to longer access time) or to compute, compared to the cost of reading the cache. In other words, a cache is a temporary storage area where frequently accessed data can be stored for rapid access. Once the data is stored in the cache, future use can be made by accessing the cached copy rather than re-fetching or recomputing the original data, so that the average access time is shorter. Cache, therefore, helps expedite data access that the CPU would otherwise need to fetch from main memory.

Answer 3

a buffer is a region of memory used to temporarily hold data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a keyboard) or just before it is sent to an output device (such as a printer). However, a buffer may be used when moving data between processes within a computer. Buffers can be implemented in either hardware or software, but the vast majority of buffers are implemented in software. Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable.



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. By keeping as much of this information as possible in SRAM, the computer avoids accessing the slower DRAM.

Answer 4

Buffer is just a tempervory storage if stores data which is readed ,write when we writing the data to a file data ll be be first store it in buffer and then it ll be saved in other file it is just like a first in last out or pipe.

cache is also a tempervory storage here it resides below the processors memory it fasts the acces of data.

Answer 5

Cache:-

Processing time of RAM is usually in microseconds whereas that of microprocessors is in nanoseconds. In order to perform frequently required tasks faster, cache is used. Its processing time is also in nanoseconds. Caches are hardware chips located on processors.



Buffer:-

Similarly, as cache is intermediate between RAM and processor, Buffer is intermediate between Hard-Disk and RAM.Processing time of H/D is usually in milliseconds whereas that of RAM is in microseconds.

Typically they are not hardware parts like cache but actually are logically created inside some part of Memory(mostly RAM rather than H/D).

Best example of buffer is:- in file-handling programs, we never directly do read/write operations on files which are stored inside H/D, but we use some buffer to temporarily store our data.

Answer 6

1) Buffer is a region of memory used to temporarily hold data while it is being moved from one place to another.

Cache is a temporary storage area where frequently accessed data can be stored for rapid access.



2)

Anti-virus like avast or avg.

http://www.avast.com/eng/download-avast-home.html

http://free.grisoft.com/ww.download?prd=afe



Mozilla Firefox

http://www.mozilla.com/en-US/firefox/