# Big data, multimedia and security technologies

> The modern Internet generates enormous amounts of data every second. Understanding big data (what it is, how it is used, and why it matters) is essential for IT students. This section also covers…

- Page: https://www.hlayiso.com/grade-11/information-technology/notes/internet-and-www/big-data-multimedia-and-security-technologies

Breadcrumbs: [Home](https://www.hlayiso.com/) › [Grade 11](https://www.hlayiso.com/grade-11) › [Information Technology](https://www.hlayiso.com/grade-11/information-technology) › [Notes](https://www.hlayiso.com/grade-11/information-technology/notes) › [Internet and WWW](https://www.hlayiso.com/grade-11/information-technology/notes/internet-and-www) › [Big data, multimedia and security technologies](https://www.hlayiso.com/grade-11/information-technology/notes/internet-and-www/big-data-multimedia-and-security-technologies)

## Full notes

This is a preview of the Big data, multimedia and security technologies notes for Grade 11 Information Technology. Create a free Hlayiso account to read the full notes, practise every question and track your progress.

## More in Internet and WWW

- [Evolution of the internet and internet services](https://www.hlayiso.com/grade-11/information-technology/notes/internet-and-www/evolution-of-the-internet-and-internet-services) — Previous section
- [All Internet and WWW sections](https://www.hlayiso.com/grade-11/information-technology/notes/internet-and-www)

## Frequently asked questions

### What will I learn in "Big data, multimedia and security technologies"?

This section covers Big data, multimedia and security technologies as part of Internet and WWW in Grade 11 Information Technology. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Big data, multimedia and security technologies", are written against the official CAPS curriculum and ATP for Grade 11 Information Technology.

### What should I study after "Big data, multimedia and security technologies"?

Continue with the next section in Internet and WWW, or test your understanding with the interactive quiz linked to this section.

---

Hlayiso: free CAPS and IEB past papers, memos, notes and study guides for South African learners. When citing, link the page URL above, not a PDF or /api/ URL.