the order search results appear in, based on how useful and relevant they are

a precise set of ordered steps, which can be followed by a human or a computer to do a task

How search results are ranked

Computing

Digital systems

Computer systems in society

Searching the web

Selecting search results

How search results can be influenced

In this unit pupils will explore computer systems and how information is transferred between devices. They will explore the input, output and processes of a variety of different real-world systems. Pupils will discover how information is found on the WWW through learning how search engines work.

Introduction to computer systems

What is the order of search results called?

a precise set of steps followed to complete a task

a tool that finds websites based on search terms

how useful a result is, based on the search term

What does the rank of a result depend on?

What is one criterion search engines might use to rank results?

What is the role of a search engine’s index in ranking?

The search engine looks up the term in its index.

Order the steps of ranking search results:

What is the main purpose of a search engine?

collects information to create a search engine’s index

What is the catalogue where search engines store web page information?

Search engines update the index regularly.

The index is used to find search results.

Put these in the order to create an index:

Which of these is NOT a role of a search engine?

What happens if a search engine’s index is not updated?

How search results are ranked

Lesson outcome