CSC103 Intro to Programming

CSC103 Intro to Programming

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  Intro to Programming CSC 103
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  What is Programming? SimpleAnswer:  Providing a series of instructions for a computer to read and execute.  The instructions are written in code which is used to solve problems or perform a task.
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  Types of Programming Machine Language  Assembly Languages  High Level Programming Languages
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  Machine Language  00110010 1000 1110  What a computer understands. Hard and tedious for humans to understand and write this code.  Operational Code: Represents instructions and memory locations
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  Assembly Language  Developedto make it easier for humans to write computer instructions.  Low level language – close to the hardware.
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  High Level Programming Languages Less code – more instructions.  Easier for humans to write and understand.  Compiler converts program code into machine code.  FORTRAN was first high-level programming language (1954)
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  Top Programming Languages(1983)
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  Top Programming Languages(2004-2020)
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  High Level Programming Languages Python, Java, C++, C#, C (Software, Web App, Mobile Apps)  JavaScript, HTML, CSS (Web Pages, servers)  PHP, SQL (Databases, servers)
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  Structure/Syntax of Programming Languages Programming languages have their own syntax – way the language is written – Punctuation – ; : . ( ) { } [ ] < > = == #  Keywords – var function def array for while  Data Types – strings, numbers, variables Boolean, objects, arrays, lists
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  Functionality of Programming Languages Programming languages use algorithms  Algorithms are step-by-step instructions to complete a task – that a computer can understand.  Can be contained in functions.  Will use Variables can hold data or represent something else in concise way.
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  Coding vs. Programming Coding is not necessarily programming. HTML coding is a mark-up language that defines structure and content of web page. CSS provides formatting and layout to a web page (and more).  Programming, involves problem-solving, completing tasks, running operations, retrieving information, analyzing data, solving complex problems, returning data.
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  Credits “Most Programming Languages Usedby Top 25 Unicorn” Chart from Top 10 Programming Languages Used by Global Companies Flyaps, 07.09.2020 Flyaps Software, NYC, Ukraine