What are the ways computer viruses spread?

Computer viruses are mainly spread through the following ways:

1. By using floppy disks infected by the outside world; 2. Infected through hard disks; 3. Spread through optical discs, because optical discs have large capacity and can Store a large number of executable files; 4. Spread through the network. This method spreads extremely fast and can spread throughout the machines on the network in a short time.

Computer virus (ComputerVirus) refers to a set of computer instructions or program codes inserted by the programmer into a computer program that destroy computer functions or destroy data, affect the normal use of the computer, and are capable of self-replication.

Computer viruses are contagious, covert, contagious, latent, excitable, expressive or destructive. The life cycle of a computer virus: development period, infection period, incubation period, attack period, discovery period, digestion period, and death period.