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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.
The command was introduced in MS-DOS/IBM PC DOS 2.0. [17] [18] DR DOS 6.0 includes an implementation of the PRINT command. [19] In early versions of DOS, printing was accomplished using the copy command: the file to be printed was "copied" to the file representing the print device. [20] Control returned to the user when the print job completed ...
PRINT: Print spooler. REPLACE: Replace files. SHARE: File sharing and locking support. SORT: Sorts input. SUBST: Substitutes a drive letter for a subdirectory. SYS: Transfers the system files to another drive to make it bootable. TREE: Display a directory tree. XCOPY: Extended file copy. Standard DOS device drivers: ANSI.SYS: ANSI console driver.
By the late 1960s both IBM and aftermarket vendors began filling this void. IBM's spooler was an option called Priority Output Writers, Execution processors and input Readers (POWER), and Software Design, Inc., an independent software company, sold a spooler called GRASP.
A dedicated program, the spooler, maintains an orderly sequence of jobs for the peripheral and feeds it data at its own rate. Conversely, for slow input peripherals, such as a card reader , a spooler can maintain a sequence of computational jobs waiting for data, starting each job when all of the relevant input is available; see batch processing .
The print data goes to a scheduler [14] which sends jobs to a filter system that converts the print job into a format the printer will understand. [15] The filter system then passes the data on to a backend —a special filter that sends print data to a device or network connection. [ 16 ]
WASHINGTON − President Joe Biden’s pardon of his son Hunter Biden, who was convicted of federal gun charges and tax evasion, rocked the political world with Republican lawmakers and President ...
Command Prompt: Text-based shell (command line interpreter) that provides a command line interface to the operating system Windows NT 3.1: Windows PowerShell: Command-line shell and scripting framework. Windows XP: Windows Shell: The most visible and recognizable aspect of Microsoft Windows.