32. OCR A Level (H446) SLR7 – 1.2 Programming paradigms

What does the term 'programming paradigm' mean?

• A specific programming language

• A software development tool

• A type of computer hardware

• A way of doing things in computing

Answer explanation

The term 'programming paradigm' refers to a way of doing things in computing, not a specific programming language, software development tool, or type of computer hardware.

Which of the following is NOT a characteristic of programming languages?

• Color schemes

• Loops

• Variables

• Conditions

Answer explanation

Color schemes are NOT a characteristic of programming languages. The other options - loops, variables, and conditions - are all fundamental features of programming languages.

What does 'Turing complete' mean for a programming language?

• It is only used for creating video games

• It can solve all problems that a computer is able to solve

• It is incomplete and needs further development

• It can only solve mathematical problems

Answer explanation

Turing complete means a programming language can solve all problems that a computer is able to solve, making it versatile and powerful.

Why do we need different programming paradigms?

• To make programming more complex

• Some problems are better solved using a certain paradigm

• To increase the number of programming languages

• To make software development slower

Answer explanation

Different programming paradigms are needed because some problems are better solved using a certain paradigm, allowing for more efficient and effective solutions.

What is the lowest form of language known as?

• Procedural language

• Machine code

• Assembly language

• High-level language

Answer explanation

Machine code is the lowest form of language, directly understandable by computers. It consists of binary code representing instructions that the CPU can execute.

What do assembly languages use to simplify programming?

• High voltage signals

• Mnemonics

• Binary ones and zeros

• High-level syntax

Answer explanation

Assembly languages use mnemonics to simplify programming by providing human-readable representations of machine instructions.

What is the main difference between high-level languages and machine code?

• High-level languages cannot solve complex problems

• Machine code is more modern than high-level languages

• Machine code can be directly executed by the computer

• High-level languages are easier to understand by humans

Answer explanation

Machine code can be directly executed by the computer, while high-level languages are easier to understand by humans.

What are the two broad categories of high-level languages?

• Assembly and Machine code

• Low-level and High-level

• Procedural and Object-Oriented

• Imperative and Declarative

Answer explanation

The correct answer is Imperative and Declarative, as these are the two broad categories of high-level languages, focusing on how the code is written and executed.

What do imperative languages focus on?

• What the program should accomplish

• The speed of execution only

• The color scheme of the IDE

• How a program operates

Answer explanation

Imperative languages focus on how a program operates, rather than what it should accomplish or the speed of execution. They dictate the steps and order of execution.

Which programming paradigm is known for using procedures or functions?

• Procedural Programming

• Assembly Programming

• Object-Oriented Programming

• Declarative Programming

Answer explanation

Procedural Programming is known for using procedures or functions, making it the correct choice in this context.