Computer Science

What is a variable?

A named storage location for data.

Why do we use variables?

To store and update data the program needs.

What is a loop?

A structure that repeats code multiple times.

Why do we use loops?

To avoid repeating code manually.

What is a for loop used for?

Repeating code a specific number of times.

When should you use a for loop?

In situations where the exact number of repeats is known.

What is a while loop?

A loop that repeats while a condition is true.

When should you use a while loop?

When you don't know how many times you want to execute the loop.

What is an infinite loop?

A loop that has no way of stopping and repeats until the program is interrupted.

What is a desktop computer?

A computer designed for regular use at a single location.

What is a laptop?

A portable computer with a built‑in screen and keyboard.

What is a tablet?

A touchscreen device used for apps, browsing, drawing, and media.

What is a smartphone?

A handheld computer that can run apps, browse the internet, and communicate.

What is a server?

A powerful computer that stores data and provides services to other computers.

What is a supercomputer?

One of the most powerful computers in the world, used for scientific research.

What is an embedded system?

A tiny computer built into another device.

What is a games console?

A computer designed specifically for gaming.

What is coding?

Giving instructions to a computer using a programming language.

Why is coding important?

It lets us create apps, websites, games, and control technology.

What does a programming language do?

It allows humans to write instructions that computers can understand.

What is debugging?

Finding and fixing errors in code.

Name four programming languages.

Python, JavaScript, Java, C++.

What is block‑based coding?

Coding using drag‑and‑drop blocks.

What is text‑based coding?

Coding by typing instructions.

What is an algorithm?

A step‑by‑step set of instructions to solve a problem.