7th Grade Technology Pre-test

Explanation

Explanation
The answer states that most computer lab computers are desktop personal computers. This implies that the majority of computers found in computer labs are the traditional desktop models designed for personal use. This is a common setup in computer labs as desktop computers are generally more powerful and provide a more stable and reliable performance compared to other types of computers. Additionally, desktop computers are easier to maintain and upgrade, making them suitable for shared use in a computer lab setting.

Explanation
PowerPoint can be used as a sign language tool by incorporating videos or images of sign language gestures into the slides. This can be helpful for individuals who are deaf or hard of hearing, as it allows them to visually follow along with the presentation and understand the content more effectively. Additionally, PowerPoint's features such as animations and slide transitions can be used to enhance the visual representation of sign language gestures.

Explanation
Yahoo, Google, Altavista, and Dogpile are all search engines. They are tools that allow users to search for information on the internet by entering keywords or phrases. Each search engine has its own algorithms and methods for indexing and retrieving web pages.

Explanation
The definition of technology is often associated with the creation and use of useful tools. Technology encompasses the development and application of various tools, techniques, and systems that facilitate human activities and solve problems. These tools can range from simple instruments to complex machinery and software. Additionally, technology has also created numerous career opportunities as it constantly evolves and demands skilled professionals to design, develop, and maintain these tools and systems. Therefore, the correct answer is "useful tools" and "career opportunities" can be seen as a related concept within the broader definition of technology.