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A buffer is a chunk of fast memory that caches data from a slower IO device.
When reading data from a disk, a great deal of time is spent "seeking", which means physically moving the read head, and waiting for the disk to spin to the right place. If the application needs to read one byte at a time, then a lot of time is wasted seeking each time.
A buffer solves this problem. When accessing the disk, it seeks once, then reads thousands of bytes into memory at once. Now, when you need to read one byte at a time, they are read from the buffer, rather than from the disk. Depending on the size of the buffer, the effective seek time per byte can be made negligibly small.
Generally, there may be buffers in both the hardware and the operating system, which make the process transparent at the programming level. When the external device is writable, then care must be taken to ensure that the buffer contents remain current with the data on the device.
What else can I help you with?
Function of a frame buffer in computers?
function of a frame buffer in computer?
Describe how the front buffer and back buffer work together in double buffering?
The front buffer is the image that is currently being displayed on the screen. The back buffer is the image that is being drawn to by a program. These switch back and forth, (moreover the information is transferred from the back to the front buffer), which lets the program draw exclusively to back buffer, where it will not be slowed down by the screen's refresh rate, as it would be if every element were drawn directly to the screen.
What is bounded-buffer problem?
The problem has to do with two processes, the producer and the consumer, who share a common, fixed-size buffer. The producer's job is to generate a piece of data, put it into the buffer and start again. At the same time the consumer is consuming the data (i.e. removing it from the buffer) one piece at a time. The problem is to make sure that the producer won't try to add data into the buffer if it's full and that the consumer won't try to remove data from an empty buffer
Function of binding buffer?
When alkali or acid is added to a pH solution, a binding buffer will help prevent the pH from changing. There is also the elution buffer which is used to clean out any proteins which are leftover.
A is a temporary holding area for files?
Buffer
How did Rome benefit from having Egypt as a province?
Egypt acted as a buffer-zone to Rome, and also gave them wheat. ^^^^^^^^^^^^^^^^^^^^^^^^ mostly it.
What are brand names for buffer-in?
Some brand names for buffer-in solutions include Tris Buffer, Phosphate Buffer, HEPES Buffer, and Bicine Buffer.
What is pinned buffer in oracle?
The buffer is in used is called as pinned buffer
What do you mean by voltage buffer?
A voltage buffer is a circuit that will buffer a source from an output.
Is buffer overload a computer virus?
No, a buffer overload is not a computer virus. A buffer overload is an error that occurs when a program on your computer is writing data to a buffer and exceeds the buffer's capacity. This can cause problems and will usually cause the program which caused the buffer overload to crash.
What is Michael buffer salary?
what is Michael buffer salary
What are some common buffer problems and how can they be resolved effectively?
Common buffer problems include pH shifts, buffer capacity limitations, and precipitation of buffer components. These issues can be resolved effectively by adjusting the ratio of acid to base components in the buffer, increasing the concentration of buffer components, or using a different buffer system altogether. Regular monitoring and maintenance of buffer solutions can also help prevent these problems.
The benefit of being high in stigma consciousness is that it can buffer individual?
Answer: self-esteem (ch. 9 Prejudice, pg. 337) in Social Pychology by David G. Myers, 11th edition
What is a benefit of the overproduction of proteins?
One benefit of overproduction of proteins is increased yield of the desired product, which can be useful in industries such as biotechnology and pharmaceuticals for producing larger quantities of therapeutic proteins. Additionally, it provides a buffer against potential losses due to degradation or inefficiencies in the production process.
What is a compound that minimizes changes in pH by reversibly taking up or releasing ions?
A buffer.
Effect of Diluting a buffer?
The buffer capacity increases as the concentration of the buffer solution increases and is a maximum when the pH is equal to the same value as the pKa of the weak acid in the buffer. A buffer solution is a good buffer in the pH range that is + or - 1 pH unit of the pKa. Beyond that, buffering capacity is minimal.
How tall is Bruce Buffer?
Bruce Buffer is 5' 11".
