Beginner 10h🎁 Free Preview
Big Data Analytics Digital NOTES
This course covers B.TECH IV YEAR I SEM,Big Data Analytics Digital NOTES
₹499View Course →
Technology
Online Technology Courses
Programming, data science, web development, and IT courses
GreyAcademy's online technology courses are self-paced and taught by expert instructors. Whether you are a beginner or building on skills you already have, you can learn technology online with structured lessons and practice. Browse the technology courses below, compare levels and pricing, and start learning today. Topics include programming, Python, Java, data science, cloud computing and AI.
All Technology courses
Intermediate 10h🎁 Free Preview
Data Engineering with Python
This course covers Introduction, Contributors, Building Data Pipelines – Extract Transform, and Load, Deploying Data Pipelines in Production, Beyond Batch – Building Real-Time Data Pipelines, Preface, 17 more.
₹599View Course →
Intermediate 10h🎁 Free Preview
Predictive Analytics & Data Mining for Managers
This course introduces MBA students to predictive analytics and data mining techniques for business decision-making. Students will explore association rules, regression, classification, time series forecasting, and machine learning methods such as decision trees, ensemble learning, and SVM. Real-world applications across supply chain, higher education, software testing, and more are covered.
₹499View Course →
Intermediate 10h🎁 Free Preview
Exploratory Data Analysis with Python: Concepts, Experiments & Case Studies
Learn exploratory data analysis (EDA) using Python. This course covers data science fundamentals, installing and using libraries like NumPy and pandas, data transformation techniques, descriptive statistics, probability distributions, and visualization methods. You'll work through hands-on experiments and case studies, including analyzing automobile and wine quality datasets, to build practical skills in extracting insights from data.
₹299View Course →
Intermediate 10h🎁 Free Preview
Introduction to Time Series Forecasting with Python
Learn to forecast time series data using Python. This course covers environment setup, data loading and exploration, feature engineering, visualization, resampling, and power transforms. You'll frame time series problems as supervised learning and apply practical techniques to real-world datasets.
₹499View Course →
Intermediate 10h🎁 Free Preview
Object-Oriented Programming in C++
This course introduces the core concepts of object-oriented programming using C++. Students will explore classes, methods, functions, and advanced features such as operator overloading, learning how to design and implement reusable, well-structured C++ programs.
₹49View Course →
Beginner 2h
Git Cheat Sheet: Essential Git Commands and Workflows
Master the most important and commonly used Git commands with this practical cheat sheet course. Learn to configure Git, work with branches and merges, and create temporary commits to switch between tasks safely. Perfect as a quick reference for developers who want Git essentials at their fingertips.
₹99View Course →
Intermediate 10h🎁 Free Preview
DBMS & SQL: Databases, Transactions and Queries
Learn the core concepts of database management systems and SQL. This course covers entities, relationships, attributes, keys, normalization, and transactions, then moves into practical SQL: SELECT, WHERE, DELETE, aggregate functions, joins, set operations, and subqueries. Build the foundation to design, query, and manage relational databases confidently.
₹299View Course →
Beginner 7h🎁 Free Preview
Computer Networks and Operating Systems Fundamentals
This course covers essential concepts in computer networks and operating systems. You'll learn about network protocols, DNS and TCP connections, OS types, process scheduling, deadlocks, page replacement, and disk scheduling. Ideal for building a strong foundation in core computing topics.
₹99View Course →
Intermediate 10h🎁 Free Preview
Best Practices in Data Cleaning and Statistical Assumptions
Learn to prepare data for analysis by testing statistical assumptions, cleaning and screening data, and addressing common myths about power, sampling, and distributional normality. This course covers practical techniques for handling outliers, transformations, complex sampling, and missing data to improve research quality.
₹499View Course →
Intermediate 10h🎁 Free Preview
Python for Data Analysis: pandas, NumPy & Jupyter
Learn the fundamentals of data wrangling and analysis in Python using pandas, NumPy, and Jupyter. This course covers Python language basics, built-in data structures, functions, and the core libraries for scientific computing. Based on Wes McKinney's authoritative guide, you'll gain practical skills to manipulate, process, and clean structured data effectively.
₹599View Course →
Intermediate 10h🎁 Free Preview
Customer Analytics and Segmentation
This course explores consumer behaviour through the lens of data-driven marketing analytics. Students will learn how big data, machine learning, and analytical methods reveal patterns in loyalty, churn, switching, and purchasing decisions. It bridges traditional consumer research with contemporary analytics techniques including web analytics and social network analysis.
₹499View Course →
Intermediate 10h
A/B Testing and Experiment Design
Learn how to design, run, and interpret A/B tests with confidence. This course covers core testing concepts, defining goals, hypothesis testing, sample size calculations, and comparing strategies. Ideal for designers, marketers, and product teams who want to make data-driven decisions.
₹99View Course →
Advanced 10h
Advanced SQL Queries and Optimization
This course covers advanced SQL topics including SQL history, aggregate functions like COUNT, string and date/time functions, output control, nested queries, window functions, and advanced join types such as SEMI JOIN. Students will gain practical skills to write complex queries and manipulate data effectively.
₹99View Course →
Intermediate 10h🎁 Free Preview
SQL for Data Analysis
Learn to write SQL queries using operators, multi-table joins, and aggregate functions, and to define and load database objects. This course covers practical querying techniques including AND, OR, BETWEEN, IN, and IS NULL, plus HAVING, ORDER BY, and transactions. Build a solid foundation for working with relational databases.
₹199View Course →
Intermediate 10h🎁 Free Preview
Data Modeling for Analytics
Learn to design databases using the Entity-Relationship model. This course covers identifying entities, attributes, and relationships, building and refining ER diagrams, applying primary and foreign keys, generalization hierarchies, data integrity rules, and normalization. It is ideal for anyone who wants a solid foundation in conceptual and relational database design.
₹499View Course →
Beginner 10h🎁 Free Preview
Cloud Data Warehousing Fundamentals
This course introduces data warehousing concepts, from traditional historical data approaches to modern OLAP systems. You will learn to design and build a data warehouse project, including data transformation, de-normalization, and performance considerations. The course covers key topics such as subject-oriented data, metadata, and the differences between operational systems and data warehouses.
₹499View Course →
Intermediate 10h
ETL Pipeline Design and Management
This course covers the complete ETL lifecycle, from problem definition and literature review to design, implementation, deployment, and real-world case studies. You will learn to architect data pipelines, compare ETL tools, address common challenges, and apply ETL in digital transformation initiatives. By the end, you'll be equipped to design and deploy effective ETL solutions for organizational data integration.
₹49View Course →
Advanced 10h🎁 Free Preview
Administering and Managing the Oracle Big Data Appliance (BDA)
This course introduces the foundations of data engineering, covering the data engineering lifecycle, data sources and types, file formats, and data repositories such as warehouses, marts, and pipelines. Students then explore big data processing tools including HDFS, the Hadoop ecosystem, Hive, and Spark, along with essential data preprocessing and cleaning techniques.
₹499View Course →
Advanced 10h🎁 Free Preview
Big Data Analytics with Apache Spark: RDDs, SparkML, and Distributed Deep Learni
Master big data analytics using Apache Spark, from in-memory computing and RDDs to SparkML and distributed deep learning. Learn to build scalable data pipelines, implement machine learning models, and deploy Spark applications on cloud platforms like HDF Cloud. Gain hands-on experience with PySpark, UDFs, and distributed training frameworks.
₹499View Course →
Beginner 10h🎁 Free Preview
Statistics with R Programming: From Basics to Functions and Classes
Learn to use R for statistical computing and data analysis. This course covers R fundamentals, data types and structures like vectors, lists, matrices, and data frames, plus operators, functions, recursion, and object-oriented classes (S3, S4, reference classes). Build a solid foundation for working with data in R.
₹499View Course →
Advanced 10h
Excel Advanced: Formulas, Filters, and PivotTables
Master advanced Excel skills to analyze and present data effectively. Learn powerful formulas like VLOOKUP, COUNTIFS, and IF, apply advanced filtering techniques, and build dynamic PivotTables. This course equips you with practical tools to handle complex data tasks with confidence.
₹99View Course →
Beginner 10h🎁 Free Preview
Microsoft Excel: From Basics to Advanced Functions and Data Analysis
Master Microsoft Excel from the ground up. Learn to navigate worksheets, format cells, manage workbooks, and apply essential formulas. Then advance to powerful functions like VLOOKUP, IF, COUNT, and SUM, create pivot tables, and use conditional formatting and data validation to analyze data effectively.
₹499View Course →
Intermediate 10h🎁 Free Preview
Exploratory Data Analysis and Data Transformation with Python
Learn to explore, visualize, and transform data using Python libraries like pandas and matplotlib. This course covers data cleaning, merging datasets, handling missing values, descriptive statistics, probability distributions, and a case study on wine quality. Build practical skills to prepare data for analysis and model development.
₹299View Course →
Intermediate 10h🎁 Free Preview
Business Intelligence with Power BI and Tableau
Master the modern business intelligence ecosystem with hands-on coverage of Power BI, from data transformation with Power Query and DAX to publishing reports and mobile access. Explore ETL, data warehousing, dashboards, governance, and predictive analytics. Learn to overcome data silos and apply BI across real-world business functions.
₹499View Course →
Beginner 10h🎁 Free Preview
Data Cleaning and Preprocessing Fundamentals
Learn the essential techniques for preparing raw data for analysis, from handling missing values and standardizing date formats to discretization, dimensionality reduction, and hierarchical data reduction. This course covers practical methods like binning, entropy-based discretization, wavelet transforms, and natural partitioning so you can produce clean, reliable datasets.
₹99View Course →
Intermediate 10h🎁 Free Preview
Statistical Data Analysis with R: Descriptive Statistics to Estimation
Learn to analyze data using the statistical software R. This course covers descriptive statistics, key continuous probability distributions (normal, log-normal, gamma, Weibull), and parameter estimation with confidence intervals. Through practical examples, you'll gain hands-on skills in R for summarizing data and fitting simple parametric models.
₹399View Course →
Beginner 10h🎁 Free Preview
Introduction to Power BI: Data Import, Modelling and Visualization
Learn to use Microsoft Power BI Desktop to turn raw data into interactive, visually compelling reports. This hands-on course covers importing and cleaning datasets, building data models, creating and formatting visualizations, applying filters, and saving, exporting and publishing your reports. Developed by the Monash Bioinformatics Platform for the Monash Data Fluency initiative.
₹299View Course →
Intermediate 10h🎁 Free Preview
Statistical Analysis with SPSS: From Descriptive to Inferential
Learn to analyze data using SPSS, from entering and exploring data to running inferential tests. This course covers descriptive statistics, data visualization, t-tests, non-parametric tests, correlation, chi-square, and ANOVA. Gain practical skills to draw conclusions from real datasets.
₹299View Course →
Advanced 10h🎁 Free Preview
High-Dimensional Data Science: Geometry, SVD, and Random Walks
Explore the mathematical foundations of data science, from the surprising geometry of high-dimensional space and fitting Gaussian models to the Singular Value Decomposition and its applications. You'll then study random walks, Markov chains, and their connection to electrical networks, including PageRank and personalized search. This theory-rich course builds the analytical tools behind modern machine learning and data analysis.
₹1,499View Course →
About Technology courses on GreyAcademy
GreyAcademy currently offers 54 technology courses, covering beginner, intermediate, advanced levels and about 911 hours of learning in total. Each course is taught by an instructor through short, focused lessons you can finish at your own pace, and you can pick up where you left off on any device.
Not sure where to start? Begin with Big Data Analytics Digital NOTES, then move on to Data Engineering with Python once you are comfortable with the basics. Check each course page for the full syllabus, the instructor's background and what you will be able to do by the end.
Looking for something different? You can browse every category or follow a step-by-step learning roadmap to plan your next few months.
FAQ
Technology courses: your questions answered
Everything you need to know before you start learning technology on GreyAcademy.
Which Technology course should I start with?
If you are new to technology, start with Big Data Analytics Digital NOTES (beginner level). Every course page shows the full syllabus, the instructor and what you will be able to do by the end, so you can compare before you enrol.
Are there free Technology courses on GreyAcademy?
Why learn Technology with GreyAcademy?
Industry-relevant curriculum, hands-on projects, lifetime access, and certificates that get you noticed.
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