AI Club Notes Class VIII 2024-25 PDF

SRDAV Public School AI Club Notes Class VIII Session 2024-25 Important points: 1.​ The AI term was coined in 1956 by John McCarthy. 2.​ AI is not a machine but it's a technology which takes huge...

SRDAV Public School AI Club Notes Class VIII Session 2024-25 Important points: 1.​ The AI term was coined in 1956 by John McCarthy. 2.​ AI is not a machine but it's a technology which takes huge amounts of data through the internet and gives us the most relevant results. 3.​ Data acts as the fuel for AI and the Internet is the source of data. 4.​ The first AI based humanoid is Sofia 5.​ AI has many domains but the three main domains for different data types are: ​ Data Science for text data stored in CSV or tabular format Example : Rock paper and scissors games ​ Computer Vision for image and video data example Quick draw or autodraw ​ Natural Language Processing for speech to text and text to speech data means data which has sentence like sequence or structure example Semantics 6.​ Algorithm : the step by step procedure to solve a problem written in our own language is known as algorithm 7.​ Flowchart : the pictorial representation of step by step procedure i.e. algorithm into universally accepted symbols is known as flowchart. it has mainly 6 symbols as given below : a.​ oval for Start/Stop b.​ Rectangle for Process/calculations c.​ Circle for connector d.​ Arrow shows flowlines e.​ parallelogram for input/output ​ 8.​ Which is the most preferred language for AI coding - Python 9.​ Features of python : a.​ case sensitive means capital small makes a difference b.​ open source means freely available easily c.​ Platform independent d.​ has huge collection of libraries e.​ High level programming language f.​ it follows OOPS (object oriented programming software) approach g.​ is easy and simple to understand 10.​ Rules for defining a variable : a.​ must start with an alphabet or _ (underscore sign) b.​ should be a single word means no spaces allowed c.​ should contain no special character d.​ can have alphabets, numbers and _ only e.​ should not be a keyword f.​ should not exceed 256 characters 11.​ Python has 2 modes of programming interpreter and script mode where interpreter mode executes statement line by line and script mode allows us to make a file and execute the set of instructions in one go. 12.​ In python the smallest unit of execution is known as token. there are various types of tokens as follows : a.​ Literals (means constants ) : example 4, 5.6, “Gauri” etc.  b.​ Identifiers (means variables) : examples : a, n1, length etc. c.​ Operators : i.​ Arithmetic : +, -, *, /, // (floor division or integer quotient), % (modulo or remainder operator), ** (raise to power or exponent) ii.​ Logical : and, or, not iii.​ Comparison (relational operators) : >, =,