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IBM Personal Computer Graphics Terminal Emulator is essentially a demonstration application developed using the IBM Graphical Kernel System. GKS is a shared, standardized graphics library, designed primarily to support IBM's high end CAD oriented IBM Professional Graphics Controller. GKS supports IBM's other video systems through the use of interchangeable device drivers.
IBM Typing Tutor is an educational program sold by IBM alongside their original IBM PC. The software itself was licensed from Microsoft, and is notable as being one of only two known commercial programs that were sold for the IBM PC on cassette tape. (The other being IBM PC Diagnostics )