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It defaults to display the attributes of all files in the current directory. The file attributes available include read-only, archive, system, and hidden attributes. The command has the capability to process whole folders and subfolders of files and also process all files. The command is available in MS-DOS versions 3 and later. [1]
HASP bypassed most operating system services with code specially tailored for efficiency. HASP operated as a single operating system task [1] and used cooperative multitasking internally to run processors to perform tasks such as running card readers, printers, and punches, managing the spool files, communicating with the system operator, and driving multiple communication lines for remote job ...
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 XPS spooler format is the intended replacement for the Enhanced Metafile (EMF) format which is the print spooler format in the Graphics Device Interface (GDI) print path. [22] XPS is an XML -based (more specifically XAML -based) color-managed device and resolution independent vector-based paged document format which encapsulates an exact ...
Restarting a computer also is called rebooting, which can be "hard", e.g. after electrical power to the CPU is switched from off to on, or "soft", where the power is not cut. On some systems, a soft boot may optionally clear RAM to zero. Both hard and soft booting can be initiated by hardware such as a button press or by a software command.
CUPS consists of a print spooler and scheduler, a filter system that converts the print data to a format that the printer will understand, and a backend system that sends this data to the print device.
The key combination consists of Alt+SysRq and another key, which controls the command issued. SysRq may be released before pressing the command key, as long as Alt remains held down. The combinations always assume the QWERTY keyboard layout; [ citation needed ] for example, on the Dvorak keyboard layout , the combination to shut down the system ...
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.