How have computers changed over time?
(1 point)
Responses
They are smaller and more powerful.
They are smaller and more powerful.
They are often purchased for personal use.
They are often purchased for personal use.
They are powered by electricity.
They are powered by electricity.
all of the above
all of the above
using wireless phones to call people
Choose the answer that best completes the statement.
Which of the following is an example of a recent development in technology?
(1 point)
Responses
using books to gather information
using books to gather information
using wireless phones to call people
using wireless phones to call people
using a bicycle to travel
using a bicycle to travel
going to the library to do research
Which of the following is a possible negative effect caused by changes in technology?
(1 point)
Responses
Products cannot be produced in mass quantities with the use of robotics.
Products cannot be produced in mass quantities with the use of robotics.
Products can be produced in mass quantities by skilled craftsmen.
Products can be produced in mass quantities by skilled craftsmen.
Products produced in mass quantities by robotics replace jobs.
Products produced in mass quantities by robotics replace jobs.
Products produced in mass quantities by robotics are cheaper to maintain.
Products produced in mass quantities by robotics replace jobs.
How have computers changed over time?
(1 point)
Responses
They are smaller and more powerful.
They are smaller and more powerful.
They are often purchased for personal use.
They are often purchased for personal use.
They are powered by electricity.
They are powered by electricity.
all of the above
The correct answer is: all of the above.
Computers have significantly changed over time in various ways. Here are the explanations for each option:
1. They are smaller and more powerful:
One way computers have changed is in their physical size. In the early days of computing, computers took up entire rooms and were large, cumbersome machines. However, with advancements in technology, computers have become smaller and more compact. This has led to the development of portable devices such as laptops, tablets, and smartphones. Additionally, computers today are also much more powerful, with faster processors, more memory, and improved graphical capabilities.
2. They are often purchased for personal use:
Another change in computers is their availability for personal use. In the past, computers were primarily used by large organizations and government agencies. However, with the advent of personal computers, individuals can now purchase and own their own computers for personal use. This has revolutionized the way people work, communicate, and access information.
3. They are powered by electricity:
The shift from mechanical computers to electronic computers was a significant turning point in computer history. Early computers used mechanical components such as gears and levers, but with the invention of vacuum tubes and later transistors, computers became electronic devices powered by electricity. This shift allowed for faster and more efficient computing, leading to the development of modern digital computers.
In conclusion, computers have changed over time by becoming smaller and more powerful, being more accessible for personal use, and transitioning from mechanical to electronic devices powered by electricity. Thus, the correct answer to the question is "all of the above."