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A software-based virtual serial port presents one or more virtual serial port identifiers on a PC which other applications can see and interact with as if they were real hardware ports, but the data sent and received to these virtual devices is handled by software that manipulates the transmitted and received data to grant greater functionality.
SIO is a serial port driver package for OS/2 written by Raymond L. Gwinn. It is designed to not only improve performance over OS/2's default serial drivers, but also improve compatibility. SIO contains a virtualized FOSSIL (VX00) driver that can be loaded to provide FOSSIL support to DOS based communications software.
This virtual COM port can be accessed and used as if it was a built-in serial COM-port. However, the characteristics of the virtual COM-port are not exactly the same as a real internal COM port, mainly due to data latency ; which means that if very sensitive and precise data transfer is required, the USB to serial adapter might be unreliable ...
For basic RS-232-style communications, the SCC included an internal 300 Hz clock that could be multiplied by 1, 16, 32 to 64, providing data rates between 300 and 19,200 bit/s. Alternately, it could use the clock on the bus as provided by the host platform, and then divide that clock by 4, 8, 16 or 32 (the later two only in the original NMOS ...
System calls are thunked for endianness and for 32/64-bit mismatches. Fast cross-compilation and cross-debugging are the main targets for user-mode emulation. System emulation. In the system emulation mode, QEMU emulates a full computer system, including peripherals. It can be used to provide virtual hosting of several virtual computers on a ...
Windows Server 2008/2003; Intel and 100% compatible processors are supported; Pentium 166 MHz or faster processor with at least 64 MB of physical RAM; 98 MB of free disk space; Download and install the latest Java Virtual Machine in Internet Explorer. 1. Go to www.java.com. 2. Click Free Java Download. 3. Click Agree and Start Free Download. 4 ...
COM port (DE-9 connector). COM (communication port) [1] [2] is the original, yet still common, name of the serial port interface on PC-compatible computers. It can refer not only to physical ports, but also to emulated ports, such as ports created by Bluetooth or USB adapters.
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