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The solution was to create a queue (or "spool") of documents to be printed and use a daemon (system process) to manage this queue and send the documents to the printer in the order in which they arrived. Such a system, with an lp command to send documents to the queue, was first introduced in 1973 in Version 4 of Unix. [2]
The print command allowed specifying one of many possible local printer interfaces, [23] and could make use of networked printers using the net command. [24] A maximum number of files and a maximum buffer size could be specified, and further command-line options allowed adding and removing files from the queue. [23]
This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
The PRINT command adds or removes files in the print queue. This command was introduced in MS-DOS version 2. [1] Before that there was no built-in support for background printing files. The user would usually use the copy command to copy files to LPT1.
Your printer may not work due to factors outside of AOL like a faulty printer, corrupted files, or conflicting programs. Try to print in Internet Explorer (IE) to determine if the problem is exclusive to AOL. If you're still unable to print in IE, contact your printer manufacturer.
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. Multiple processes can write documents to the spool without waiting, and can then perform other tasks, while the "spooler" process operates the ...
A printing protocol is a protocol for communication between client devices (computers, mobile phones, tablets, etc.) and printers (or print servers).It allows clients to submit one or more print jobs to the printer or print server, and perform tasks such as querying the status of a printer, obtaining the status of print jobs, or cancelling individual print jobs.
CUPS 1.0 provided a simple class, job, and printer-monitoring interface for web browsers. CUPS 1.1 replaced this interface with an enhanced administration interface that allows users to add, modify, delete, configure, and control classes, jobs, and printers.