A problem or fault in a computer program that prevents it from working correctly.

"Errors can arise from mistakes in the code, incorrect input, or unforeseen situations that the program doesn't know how to handle."

A programming language with a syntax similar to Ruby, but with a static type system and compiled output for efficiency.

"Crystal combines the ease of use of Ruby with the performance benefits of a compiled language, making it suitable for high-performance web applications."

A method that gets the value of a property.

"In object-oriented programming, a getter allows controlled access to the private properties of a class."

A notation used to classify algorithms according to how their run time or space requirements grow as the input size grows.

"Understanding Big O notation is crucial for evaluating the efficiency of algorithms."

A unit that indicates the workload of an employed person in a way that makes workloads or class loads comparable across various contexts.

"In software development projects, FTE is used to estimate the effort required by indicating how many full-time employees are needed to complete the project within a specified timeframe."