Safe Mode is a Windows feature used to start a computer with basic drivers, such as mouse, keyboard, etc. It bypasses blocking issues, such as system corruption, or installation of incompatible drivers or system services, enabling the Administrator to resolve such issues.
Remote Assistance is a Windows feature to enable support personnel (helper) to provide technical support to a remote user (host). Through Remote Assistance a helper can view Windows session of a host on his computer itself.
Shut down mode is the state of a computer when it is without power. When power is turned on by pressing the power button, the computer performs a cold boot.
A power plan is a collection of power configuration for hardware and software. It manages how a computer uses the power. Power plan helps a user to save energy, maximize system’s performance, or achieve a balance between the two.
Information Rights Management (IRM) allows users to specify access rights to e-mail messages. It helps prevent sensitive information from being printed, forwarded, or copied by unauthorized people. It is necessary to install Windows Rights Management Services (RMS) Client Service Pack 1 (SP1) to use IRM in Outlook 2007.
Pop-up blocker is a feature of Internet Explorer (IE) 7+. It enables users to block most pop-ups while they are surfing the Internet on their computers. Users can choose the level of blocking. They can either block all pop-up windows or allow pop-ups they want to see. By default, the pop-up blocker is enabled in IE 7+. While the pop-up blocker is enabled, a user can see the blocked pop-ups by clicking the IE 7+ information bar.
BitLocker Drive Encryption (BitLocker) is a feature of Windows introduced in Windows Vista. It is used to protect all files stored on the drive Windows is installed on. It encrypts the entire system drive and helps block hackers from accessing the system files they rely on to discover user passwords. BitLocker also prevents hackers from accessing the hard disk by removing it from a computer and installing it on a different computer.
A switch is a network connectivity device, which is used to receive the data packets and transmits them to the addressed machine. It reads the destination’s hardware address from each incoming data packet and forwards the data packet to its destination. This reduces the network traffic as data packets are sent only to the addressed machine.
A firewall is a set of related programs configured to protect private networks connected to the Internet from intrusion. It is used to regulate the network traffic between different computer networks. It permits or denies the transmission of a network packet to its destination based on a set of rules.
Router is a device that routes data packets between computers in different networks. It is used to connect multiple networks, and it determines the path to be taken by each data packet to its destination computer. Router maintains a routing table of the available routes and their conditions. By using this information, along with distance and cost algorithms, the router determines the best path to be taken by the data packets to the destination computer.