![]() ![]() ![]() This is the worst case, because software restrictions hinder the use of capabilities of a remote display device. The communication capabilities usually become reduced to a serial line or its emulation, possibly with few ioctl()s as an out-of-band channel in such cases as Telnet and Secure Shell. Certain functions of an advanced text mode, such as an own font uploading, almost certainly become unavailable. ![]() This usually supports programs which expect a real text mode display, but may run considerably slower. Examples are xterm for X Window System and win32 console (in a window mode) for Microsoft Windows. If not deterred by the operating system, a smart program may exploit the full power of a hardware text mode. This is a normal condition for a locally running application on various types of personal computers and mobile devices. A genuine text mode display, controlled by a video adapter or the central processor itself.From text application's point of view, a text screen (and communications with it) can belong to one of three types (here ordered in order of decreasing accessibility): ![]()
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