OSC

OSC may refer to:

Organizations

ANSI escape code

In computing, ANSI escape codes (or escape sequences) are a method using in-band signaling to control the formatting, color, and other output options on video text terminals. To encode this formatting information, certain sequences of bytes are embedded into the text, which the terminal looks for and interprets as commands, not as character codes.

ANSI codes were introduced in the 1970s and became widespread in the minicomputer/mainframe market by the early 1980s. They were used by the nascent bulletin board system market to offer improved displays compared to earlier systems lacking cursor movement, leading to even more widespread use.

Although hardware text terminals have become increasingly rare in the 21st century, the relevance of the ANSI standard persists because most terminal emulators interpret at least some of the ANSI escape sequences in the output text. One notable exception is the win32 console component of Microsoft Windows.

History

Almost all manufacturers of video terminals added vendor-specific escape sequences to perform operations such as placing the cursor at arbitrary positions on the screen. One example is the VT52 terminal, which allowed the cursor to be placed at an x,y location on the screen by sending the ESC character, a y character, and then two characters representing with numerical values equal to the x,y location plus 32 (thus starting at the ASCII space character and avoiding the control characters).

Czechoslovak Trade Union Association

Czechoslovak Trade Union Association (Czech: Odborové sdružení československé), abbreviated to OSČ, was a national trade union center, founded in 1897 in what was then the Austro-Hungarian Empire. With the break-up of the empire, the OSČ emerged as the major trade union force in Czechoslovakia up to the Second World War.

Organizational history

Foundation

Odborové sdružení českoslovanské ('Czechoslav Trade Union Association') was founded in Prague on January 31, 1897. The OSČ represented a desire on the part of Czech trade unionists to build a Czech trade union movement separate from the Viennese Imperial Trade Union Commission (the 'Vienna Commission'), the culmination of two years of complaints by Czech trade unionists that the Vienna Commission was neglecting the Czech labour movement. The formation of OSČ did not, however, represent a total break with the Vienna Commission; several OSČ unions retained affiliations with the Vienna Commission. The founding congress was attended by 108 delegates, representing 90 trade union organizations, who met in the metalworkers' assembly hall in Karlín. Fourteen trade union organizations not represented at the congress also supported the OSČ's formation. Josef Roušar was elected its secretary. The new organization was linked to the Czechoslav Social Democratic Workers Party.