How buffering can improve the performance of a computer system?
Question: How Buffering can improve the performance of a Computer system? Answer: If C.P.U and I/O devices are nearly same at speed, the buffering helps in making the C.P.U and the I/O devices work at full speed in such a way that C.P.U and the I/O devices never sit idle at any moment.
Purpose of Buffering
Computers have many different devices that operate at varying speeds, and a buffer is needed to act as a temporary placeholder for everything interacting. This is done to keep everything running efficiently and without issues between all the devices, programs, and processes running at that time.
Spooling overlaps the input and output of one job with the computation of another job. Buffering on other hand overlaps the input and output of one job with the computation of the same job. Spooling requires less resource management as compare to buffering as different resources manages the process for specific jobs.
A buffer is a data area shared by hardware devices or program processes that operate at different speeds or with different sets of priorities. The buffer allows each device or process to operate without being held up by the other.
Regularly cleaning the cache and cookies is a great way to improve computer performance and speed. To clean the cache and cookies: Just click Tools from your browser tool bar and click on Internet Options to delete and clear cache and cookies. This should be done on a regular basis to speed up the computer and browser.
- Speed differences between two devices. ( See Figure 13.10 below. ) ...
- Data transfer size differences. ...
- To support copy semantics.
The three main I/O buffering techniques are: Single buffer: when data is stored in a section of the system memory. Double buffer: allows for two buffers to be used. Circular buffering: uses a priority-based queue for when more than two buffers are needed.
A spooling is a type of buffer that holds the jobs for a system until the system is ready to accept the jobs. Buffering is the act of temporarily storing data in a buffer. The buffer is a part of the main memory used to temporarily store or hold data sent between two devices.
Spooling considers the entire secondary memory as a huge buffer that can store many jobs and data for many operations. The advantage of Spooling is that it can create a queue of jobs that execute in FIFO order to execute the jobs one by one.
Buffering is done to deal effectively with a speed mismatch between the producer and consumer of the data stream. A buffer is produced in main memory to heap up the bytes received from modem. After receiving the data in the buffer, the data get transferred to disk from buffer in a single operation.
Why is it called buffering?
The word 'buffer', by the way, comes from the meaning of the word as a cushion that deadens the force of a collision. In early computers, a buffer cushioned the interaction between files and the computer's central processing unit.
A solution of acetic acid and sodium acetate CH3COOH + CH3COONa is an example of a buffer that consists of a weak acid and its salt. An example of a buffer that consists of a weak base and its salt is a solution of ammonia and ammonium chloride NH3aq + NH4Claq.
A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution relatively stable.
Enhances Security
A slow-performing computer may result from spyware and viruses running in the background without your knowledge. A slow-performing computer may also be a sign that spyware and viruses have reduced security settings on your computer, making it more vulnerable to hackers.
In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions.
We first learned that computer performance evaluation assesses a PC system to determine whether it is performing at its optimal level and whether there are any improvements that can be made to enhance subpar levels.
Why the buffer was invented in operating system development? A temporary storage area, usually in RAM. The purpose of most buffers is to act as aholding area, enabling the CPU to manipulate data before transferring it to a device.
The word 'buffer', by the way, comes from the meaning of the word as a cushion that deadens the force of a collision. In early computers, a buffer cushioned the interaction between files and the computer's central processing unit.
