In software, what is a bug?
AnswerAn error or flaw that causes wrong behavior
A bug is a mistake in code or design that makes a program behave unexpectedly.
Coding · Facts & stats
Code facts & stats
8 fact-checked facts about computer code and programming, each with the reason behind it. 4 more are in today's round and join this page after it closes.
The basics
Which two digits does binary use?
Answer0 and 1
Binary is base 2, representing all values with just 0s and 1s.
Going deeper
How many bits are in a byte?
Answer8
A byte is 8 bits, enough to represent 256 different values.
What does IDE stand for?
AnswerIntegrated development environment
An IDE bundles an editor, build tools and a debugger in one application.
In languages like C, Java and Python, what index does the first element of an array have?
Answer0
These languages use zero-based indexing, so the first element is at index 0.
What does CSS stand for?
AnswerCascading Style Sheets
CSS controls the look of web pages, such as colors, fonts and layout.
Expert level
What is the decimal value of binary 1010?
Answer10
Binary 1010 is 8 + 0 + 2 + 0, which equals 10.
Ada Lovelace wrote what is often called the first published algorithm for which machine?
AnswerThe Analytical Engine
In 1843 Lovelace published notes including an algorithm for Charles Babbage's proposed Analytical Engine.
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