Examlex
In a rack-and-pinion steering system, the rack is the steering input and drives the pinion in order to move the wheels.
Botnet
A network of computers infected by malware that are controlled as a group without the owners' knowledge, usually to send spam or launch attacks.
Firewall
A network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies.
Hacker
Anyone who unlawfully breaks into a computer system (whether an individual computer or a network).
Packet
A formatted unit of data carried by a packet-switched network, containing both control information and user data, critical for data transmission protocols.
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