Algorithm, pseudocode, flowchart

• Computer programs are sequences of instructions written using a programming language to perform specific tasks by the computer
• Computer programs can range from two lines to millions of lines of instructions
• Computer program instructions are also called program source code and computer programming is also called program coding
• A computer without a computer program is just a dump box; it is programs that make computers active
• The act of writing computer programs is called computer programming
• Programming languages used to write computer programs include Java, C, C++, Python, PHP, Perl, Ruby
• Examples of computer programs include MS Word, MS Excel, Adobe Photoshop, Internet Explorer, Chrome, etc.
• Computer programs are used in movie making for graphics and special effects
• Computer programs are used in medical examinations like ultrasounds and X-rays
• Computer programs are used in mobile phones for SMS, chat, and voice communication
• An algorithm is a step-by-step procedure to resolve any problem, expressed as a finite set of well-defined instructions
• Every problem can be solved with the help of an algorithm
• Pseudocode is a high-level description of an algorithm or a computer program that uses a mixture of natural language and some programming language-like syntax
• Pseudocode is not meant to be executed on a computer but serves as a way to outline the logic of an algorithm in a human-readable format before translating it into actual code
• Flowcharts represent algorithms using diagrams and are commonly used in programming to find the steps to write a program
• In a flowchart, each step in the process is represented by a specific shape, such as a rectangle for a process step, a diamond for a decision point, and arrows to indicate the flow of control or data between steps