This book covers the fundamentals of computer and network engineering. It includes an introduction to computer and network engineering, computer hardware and software components, network protocols and the OSI model, as well as network security and cyberthreat prevention.
The development of information and communication technology (ICT) over the past few decades has brought about significant changes in various aspects of human life. Nearly all modern activities today involve the use of computers and networks, either directly or indirectly. From education and business to government, healthcare, transportation, and even entertainment, all
utilize computer systems and networks as the primary means of processing and exchanging information.
Computers were originally developed as tools for performing mathematical calculations quickly and accurately. However, as technology has advanced, their functions have expanded beyond
calculations. Computers are now capable of performing a variety of complex processes, such as processing large amounts of data, storing digital information, controlling electronic devices, and even running artificial intelligence systems. This makes computers one of the most essential technologies in modern life.