Book excerpt: PROGRAMMING AND GUI FUNDAMENTALS Discover the foundations of TCL programming and GUI development Programming and GUI Fundamentals: Tcl-Tk for Electronic Design Automation (EDA), delivers a comprehensive exploration of the major design challenges and potential present in application and tool development with Tcl-Tk. Accessibly written and easy-to-understand, the book can be used by students at a variety of levels, as well as researchers and working professionals. The authors present the fundamental concepts of Tcl programming and graphic user interface (GUI) development using images, and photographs, assisting with concept understanding and retention. They describe real-time system designs and offer students and designers the opportunity to learn about critical concepts in scripting and GUI development. Readers will learn to design their own GUI, place and package widgets on the GUI, and allow EDA professionals, chip designers and students to code and design in TCL-TK. They will also benefit from: A thorough introduction to scripting languages and wish interpreters, including their fundamental concepts, TCL tips and tricks, and command, variable, and procedure examples Comprehensive explorations of the TCL data structure, including datatypes, strings and commands, lists and commands, and arrays and commands Practical discussions of TCL control flow, including conditional commands, multi-condition commands, and loop commands In-depth examinations of file input/output processing, including TCL file read-write, open and close commands, gets, and puts. Perfect for undergraduate and graduate students studying programming or computer science, as well as professionals working on electronic design automation and chip design, Programming and GUI Fundamentals: Tcl-Tk for Electronic Design Automation (EDA) is also an indispensable resource for programming professionals seeking to upskill.