Input: Railway electrification system
On tracks that London Underground share with National Rail third-rail stock (the Bakerloo and District lines both have such sections), the centre rail is connected to the running rails, allowing both types of train to operate, at a compromise voltage of 660 V. Underground trains pass from one section to the other at speed; lineside electrical connections and resistances separate the two types of supply. These routes were originally solely electrified on the four-rail system by the LNWR before National Rail trains were rewired to their standard three-rail system to simplify rolling stock use.

What is the voltage shared two types of trains UK railroad system?
Output: 660 V

Input: Infrared
Infrared cleaning is a technique used by some Motion picture film scanner, film scanners and flatbed scanners to reduce or remove the effect of dust and scratches upon the finished scan. It works by collecting an additional infrared channel from the scan at the same position and resolution as the three visible color channels (red, green, and blue). The infrared channel, in combination with the other channels, is used to detect the location of scratches and dust. Once located, those defects can be corrected by scaling or replaced by inpainting.

Along with replacement via inpainting, what procedure is used in infrared cleaning to remove the effect of scratches and dust?
Output: scaling

Input: Dell
In the mid-1990s, Dell expanded beyond desktop computers and laptops by selling servers, starting with low-end servers. The major three providers of servers at the time were IBM, Hewlett Packard, and Compaq, many of which were based on proprietary technology, such as IBM's Power4 microprocessors or various proprietary versions of the Unix operating system. Dell's new PowerEdge servers did not require a major investment in proprietary technologies, as they ran Microsoft Windows NT on Intel chips, and could be built cheaper than its competitors. Consequently, Dell's enterprise revenues, almost nonexistent in 1994, accounted for 13 percent of the company's total intake by 1998. Three years later, Dell passed Compaq as the top provider of Intel-based servers, with 31 percent of the market. Dell's first acquisition occurred in 1999 with the purchase of ConvergeNet Technologies for $332 million, after Dell had failed to develop an enterprise storage system in-house; ConvergeNet's elegant but complex technology did not fit in with Dell's commodity-producer business model, forcing Dell to write down the entire value of the acquisition.

What year did Dell's enterprise revenue make up a large chunk of its profit?
Output: 1998

Input: The Times
The Times faced financial extinction in 1890 under Arthur Fraser Walter, but it was rescued by an energetic editor, Charles Frederic Moberly Bell. During his tenure (18901911), The Times became associated with selling the Encyclopdia Britannica using aggressive American marketing methods introduced by Horace Everett Hooper and his advertising executive, Henry Haxton. Due to legal fights between the Britannica's two owners, Hooper and Walter Montgomery Jackson, The Times severed its connection in 1908 and was bought by pioneering newspaper magnate, Alfred Harmsworth, later Lord Northcliffe.

Which editor nearly ruined The Times in 1890?
Output:
Arthur Fraser Walter