Nowadays, the most common use of spooling is printing: documents formatted for printing are stored in a queue at the speed of the computer, then retrieved and printed at the speed of the printer. tsb.gc.ca. By doing so, again we are saving time because now the CPU doesn't have to wait for the output device to show the output and this, in turn, increases the overall execution speed of the system. Spooling is more efficient than buffering, as spooling can overlap processing two jobs at a time. Then the CPU executes the instruction and then the output is again given to some output device and at this time also, the CPU is in idle state. जहाँ वह कुछ समय के लिए स्टोर रहता है. Techopedia explains Spooling. A spool is a kind of buffer that holds the jobs for a device till the device is ready to accept the job. 3. SPOOL is an acronym for simultaneous peripheral operations on-line. Spooling stands for Simultaneous Peripheral Operation online. JES2 attempts to maximize the performance of spooling operations, which ultimately benefits the throughput of work through the JES2 installation. So bytes coming from the modem is accumulated in the buffer space, and when all the bytes of a file has arrived at the buffer, the entire data is written to the hard disk in a single operation.Spooling and buffering both increases the efficiency of the computer but Spooling is better than buffering as it handles the processing of two jobs at a time. What is Spooling in OS? In the aft section there was an aluminum seine drum driven by two hydraulic motors, vertical rollers on spooling gear which guided the net as it came up over the stern and a hydraulically operated ramp. So, the documents can be stored into the spool and the printer can fetch that documents and print the document one by one.We all know that a buffer is an area in the main memory that is used to store and hold data temporarily. Spooling -: Spooling in operating System is Simultaneous peripheral operations online. Print spooling. Let's learn more about it.From the above image, we can see that the input data is stored in some kind of secondary device and this data is then fetched by the main memory. So, most of the time, the CPU is in idle state and this is the worst condition that we can have in Operating Systems. Data is sent to and stored in memory or other volatile storage until the program or computer requests it for execution. Spooling is critical to maintaining performance in a z/OS-JES2 environment. It is the kind of mechanism or buffering or a process in which data is stored in disk till CPU is busy. The spool is processed in ascending order, working on the basis of a FIFO (first in, first out) algorithm. After showing the output, the next process starts its execution.

As noted previously, spooling provides simultaneous processing and a temporary storage area for work that is not yet completed. In spooling, the I/O of one job can be handled along with some operations of another job. It is a kind of buffering mechanism or a process in which data is temporarily held to be used and executed by a device, program or the system. "Spool" is technically an acronym for simultaneous peripheral operations online. tsb.gc.ca . The OS keeps a number a jobs in memory and executes them without any manual information. Generally, the spool is maintained on the computer’s physical memory, buffers or the I/O device-specific interrupts. Getting input and output from the system was quickly seen to be a bottleneck. Both the main memory and secondary memory are digital in nature, so taking data from the main to secondary is very fast. Do share this blog with your friends to spread the knowledge. The CPU will not be held idle in this case.For example, in a printer spooling, there can be more than one documents that need to be printed. Here, the concept of Spooling comes into play. But spooling can make use of the whole memory. Simultaneous peripheral operation online, acronym for this is Spooling.

The Now, as we know the transmission speed of a modem is slow, as compared to the hard disk. The spooler only has to notify when a process gets completed at the remote site so that spooler can spool next process to the remote side device.Spooling increases the performance of the system by increasing the working rate of the devices. The main aim of buffers is to match the speed of data streaming between a sender and receiver. Generally, it is maintained on computer’s physical memory, buffers or the I/O device-specific interrupts. Jobs are proces…

So, the CPU will not be idle in this case.When the CPU generates some output, then that output is first stored in the main memory and the main memory transfers that output to the secondary memory and from the secondary memory, the output will be provided to some output devices. To prevent from this spooling is used.

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