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When did IRAF start?

  • Introduction The IRAF project began in earnest in the fall of 1981 at Kitt Peak National Observatory (NOAO did not yetexist at that time). The preliminary design of the system was completed early in 1982, and the ?rst versions of thecommand language (CL) and the applications programming environment were completed during 1982.

What programming environments does IRAF provide?

  • IRAF currently provides three quite different programming environments. The highest level environment isthe CL, where the programming language is the command language itself, and the environment is de?ned by the CLcallable packages and tasks.

Is IRAF a multiprocess system?

  • In normal interactive use IRAF is a multiprocess system. The standard process structure is depicted in Figure 2. The CL process handles all communications to the user terminal, which is usually a graphics terminal of somesort. All applications programs run as concurrent subprocesses of the CL process.

What is IRAF kernel?

  • The IRAF kernel (also known as the OS package) is a library of ?fty or so ?les containing a number of For-tran callable subroutines. The kernel procedures may be written in any language provided they are Fortran callable;all current IRAF kernels are written in C.
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