Grade 7

A system is a set of interconnected components that work together to achieve a particular task or purpose.

• True

• False

Humans and computers do not share any common features as systems

• True

• False

Signal conversion at the interface does not need to preserve the integrity of the message.

• True

• False

Input devices convert external signals into internal signals while preserving the information they carry.

• True

• False

Both humans and computers are capable of converting sound, pressure, and light signals

• True

• False

What do computers and humans have in common as systems?

• They both use digital electronic signals.

• They are both capable of information processing.

• They both use action potentials.

Signals going into an information processing system are referred to as:

• Output

• Input

• Interface

What is the purpose of an interface in an information processing system?

• To store information

• To create new signals

• To convert external signals into internal signal

Which two devices are responsible for converting sound signals?

• Microphone - Keyboard

• Mouse - Speaker

• Microphone - Speaker

Command-Line Interface (CLI) is the most user-friendly type of interface.

• True

• False