extra part.

Software containing virus or harmful code.

used to refer to person being addressed.

To control or handle something, such as a machine.

Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

relating to finance. organization's finances.

infective agent that is able to multiply only within the living cells of a host. Living organisms that causes disease or sickness.

Computer applications and systems.

person whom one does not know or with whom one is not familiar. People you do not know.

software that enables user to obtain covert information about another's computer activities by transmitting data covertly from their hard drive. Computer software that obtains information from a user's computer without the user's knowledge or consent.

To get something someone has given or sent to you.

verbal written or recorded communication. Ideas or themes in a story, book, or film. To communicate using text.

keep safe from harm or injury.

making short, sharp sound. To make a short, slight, and sharp sound.

officially compulsory, or otherwise considered essential. To need something, to make it necessary.