Unit 1.1: Introduction to IT

What is the definition of Information Technology (IT)?

IT is the use of systems (hardware, software, and networks) to store, process, protect, and share data.

What are the main components of an IT system?

Hardware, Software, and Network.

What does hardware refer to in an IT system?

Physical components of a computer such as CPU, memory, storage, and devices.

What is the role of software in an IT system?

Programs and instructions that tell hardware what to do.

What does a network do in an IT system?

Connects devices so they can communicate and share data.

What are the purposes of IT systems?

Automate processes, improve communication, store and manage data, and support decision-making.

What is the difference between data and information?

Data is raw facts and figures which are unprocessed, while information is processed data that is organized and meaningful.

What are some characteristics of data?

Data is raw, unstructured, input, and not meaningful alone.

What are some characteristics of information?

Information is processed, organized, output, and meaningful and useful.

What is a database?

An organized collection of data.

Define cloud computing.

Delivering services over the internet.

What is cybersecurity?

Protecting systems and data from attacks.

What is an algorithm?

A step-by-step process to solve a problem.

Explain the key concept of Data vs Information.

Data (input) is transformed into Information (output) through processing.