A common type of distortion in CRT monitors in which horizontal and vertical lines bend inwards toward the center of the display. The distortion is most noticeable at the edges of the display.
The opposite of pincushion distortion is barrel distortion, in which horizontal and vertical lines bend outwards toward the edge of the display. A third type of distortion, called trapezoid distortion, occurs when vertical lines are straight but not parallel with each other.
Most monitors have pincushion/barrel controls that let you correct these distortions, and many monitors also include a trapezoid distortion control.
- ping of death
(ping &v deth) (n.) A type of DoS attack in which the attacker sends a ping request that is larger than 65,536 bytes, which is the maximum size that IP allows. While a ping larger than 65,536 bytes is too large to fit in one packet that can be transmitted, TCP/IP allows a packet to […]
- ping triangulation
A process developed by IBM in which client requests over the Internet can be routed to the cell that is geographically closest. When one or more mirror sites exists, ping triangulation uses a process called echo location. When a server receives a client request, it sends out an ICMP echo, or ping, packet across the […]
A diagram or table that describes the purpose of each pin in a chip or connector, or each wire in a cable.
- pinned item list
The list of programs on the Start menu in the Microsoft Windows OS is divided into two parts: the programs displayed above the separator line (also known as the pinned items list) and the programs displayed below the separator line (also known as the most frequently used programs list). The programs on the pinned items […]
)A temporary software connection between two programs or commands. Normally, the operating system accepts input from the keyboard and sends output to the display screen. Sometimes, however, it is useful to use the output from one command as the input for a second command, without passing the data through the keyboard or display screen. Pipes […]