4.1.1

Code

Test yourself on Code

Test your knowledge with free interactive questions on Seneca — used by over 10 million students.

Code

Computer language

Computer language

  • Image that you have an algorithm for a computer task.
  • Once you have an algorithm, you need to turn it into a computer language.
  • This helps the computer understand and follow the steps in the algorithm.
Computer languages

Computer languages

  • There are many computer languages for creating programs.
  • A program is a set of instructions to carry out a task.
Machine code

Machine code

  • At the lowest level, the computer uses machine code.
  • Machine code is based on the numbers 0 and 1.
  • The machine code system is called ‘binary’.
    • It is called 'binary' because there are only two numerals you can use.
Higher-level languages

Higher-level languages

  • BASIC, C, Java, and HTML are all names of higher-level computer languages.
  • Higher-level computer languages are designed to be closer to human language.
  • Each of the languages uses different codes.
    • Each language is different, just like Spanish is different from English.
Jump to other topics
1

Using Computers

1.1

Computers as a Tool

1.1.1Uses of Computers1.1.2More Uses of Computers1.1.3Advantages of Information Technology1.1.4More Advantages of Information Technology
1.2

Data

1.2.1Storing Data1.2.2Databases1.2.3Sorting & Filtering Data1.2.4Interrogating Data
1.3

Plagiarism & Illegal Sharing

1.3.1Plagiarism1.3.2Copyrighted Content
2

Networks & the World Wide Web

2.1

Networks

2.1.1Parts of Networks2.1.2The Internet2.1.3The World Wide Web
2.2

Searching Online

2.2.1Searching the World Wide Web2.2.2Searching Tips2.2.3Reliable Information
2.3

Protecting Yourself Online

2.3.1Your Digital Footprint2.3.2Being Safe2.3.3Online Safety2.3.4Viruses2.3.5Malware2.3.6People Online2.3.7Your Feelings2.3.8Getting Help
3

Computational Thinking

3.1

Computational Thinking

3.1.1Computational Thinking3.1.2Decomposing Tasks3.1.3Algorithms (1/2)3.1.4Algorithms (2/2)3.1.5Logical Reasoning & Debugging
4

Computer Languages

4.1

Coding

4.1.1Code4.1.2Programs4.1.3Writing Programs4.1.4Writing Your Own Program: Input, Outputs, Design4.1.5Turning an Algorithm into an App (1/2)4.1.6Turning an Algorithm into an App (2/2)

Practice questions on Code

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    What does the computer use at the lowest level?Multiple choice
  2. 2
    Choose the correct statements: True / false
  3. 3
    What are high-level computer languages designed for? Multiple choice
Answer all questions on Code

Unlock your full potential with Seneca Premium

  • Unlimited access to 10,000+ open-ended exam questions

  • Mini-mock exams based on your study history

  • Unlock 800+ premium courses & e-books

Get started with Seneca Premium

Logical Reasoning & Debugging

Programs