Computers can be considered as an electronic device that includes a processing unit, a memory unit and other hardware units including an interface, network cards, ports and more and is designed to perform complex calculation and to run multiple applications.Computers have also provided digital locking such as biometric scanning or digital gate locking which helps in safeguarding the house and to prevent unauthorized access at the home or at workplace which enhances security and removes the need for a physical security members. Computers have highly secured the banking system by introducing online banking methods which are highly secure and users doesn’t need to physically go to the branch for banking services. Also, health care features can be used on computers with the help of internet and system hardware which save a lot of time for prescription from doctor specially in case of emergency. Computers have helped to improve health care system by decreasing time for treatment and when immediate treatment is needed for the patient.

Ways in which computer made world less safe. Attackers try to access the confidential information of the users which always makes them vulnerable to one attack or the another such as phishing, sniffing, DoS and more which surely makes the world less safe. Companies track information of the users such as location information or media access of the devices which make is less safe for the users to use the computer and internet and makes them vulnerable to various online attacks. Computer provides an option or feature termed as anonymity in which user can hide his/her name and addition details but this feature is used by people to troll people and to implement cyber bullying which makes it less safe for the victims. Cyber networks are the network that are related over the computer system with the help of the internet and are vulnerable to various attacks such as phishing, brute force and more.