Unit description
The
computer is one of the most prolific tools ever built in the history of
mankind. This electronic machine which receives and processes data in order to
transform it into useful information has two distinct parts: one tangible part
called hardware (keyboard, monitor, computer case, RAM memory, processor...)
and the intangible software part (programs, data...) which both depend on each
other to function.
The fact
that it can be programmed means that a wide range of tasks can be performed; an
aspect which clearly differentiates this general purpose machine from other
machines with similar characteristics. Its input database can carry out
operations in almost all areas of human performance known; either as a work
tool or as a means of performing calculations, processing information or
communicating with those around us.
Accordingly,
another fundamental aspect of the computer is the fact that it allows us to
connect with the internet, which transforms it into a very powerful
communication tool. It needs to be used correctly in order to maintain privacy
and prevent threats through viruses or malware.
Therefore,
this unit will look closely at the computer operating systems and the benefits
its evolution has produced in every activity we carry out on the computer. In
turn, it will explore how to protect a computer system’s security against any
threat that could potentially harm the computer equipment and finally, what it
means that a computer is connected.
Theory
- Concept of operating systems.
- The evolution of operating
systems.
- Uses and maintenance of
operating systems.
- Types of operating systems.
- The main threats to computer
systems.
- Security software: antivirus
and antimalware.
- Computer networks.
- Internet services.
- The World Wide Web and Web 2.0.
Learning objectives
- Learn what an operating system is.
- Learn about the evolution of operating
systems.
- Identify the uses of operating systems.
- Understand the importance of carrying out
regular maintenance of computer software.
- Recognise the different types of operating
systems.
- Discover the main threats that can harm a
computer.
- Learn about software, antivirus and
antimalware.
- Understand the implications of computer
networks.
- Learn about the main internet services.
- Understand the origin and working of the
World Wide Web and Web 2.0.
- Carry out a class project following the given
directions.
- Consult different web sites independently.
- Practise the studied concepts in the guided
activities.
