detect fault
81Page replacement algorithm — This article is about algorithms specific to paging. For outline of general cache algorithms (e.g. processor, disk, database, web), see Cache algorithms. In a computer operating system that uses paging for virtual memory management, page… …
82Replication (computer science) — Replication is the process of sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault tolerance, or accessibility. It could be data replication if the… …
83Earthquake warning system — An earthquake warning system is a system of accelerometers, communication, computers, and alarms that is devised for regional notification of a substantial earthquake while it is in progress. This is not the same as earthquake prediction, which… …
84Disasters — ▪ 2009 Introduction Aviation January 23, Poland. A Spanish built CASA transport plane carrying members of the Polish air force home from a conference on flight safety in Warsaw crashes near the town of Miroslawiec; all 20 aboard are killed …
85iPhone 4 — iPhone 4 …
86Interrupt — This article is about computer interrupts. For the study of the effect of disruptions on job performance, see Interruption science. In computing, an interrupt is an asynchronous signal indicating the need for attention or a synchronous event in… …
87Tsunami — For other uses, see Tsunami (disambiguation) …
88Labrador Retriever — Yellow Labrador Retriever Nicknames Lab Labrador Country of origin Canada (origin) United Kingdom (development) Trai …
89Traffic light — The traffic light, also known as traffic signal, stop light, traffic lamp, stop and go lights, robot or semaphore, is a signaling device positioned at a road intersection, pedestrian crossing, or other location. Its purpose is to indicate, using… …
90Mains electricity — A table lamp connected to a wall socket (the mains). Mains is the general purpose alternating current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity,… …
