Real-life networks are unreliable with timeout and connection resets. Direct PUT/POST requests against resources are naive and unreliable. HTTP doesn't guarantee reliable request-response completion
Process is a program execution with its own memory and resources. Thread is a semi-process with shared memory and stack. Three types of threads exist: kernel-level, user-level, and hybrid
COT reports show futures and options positions for markets with 20+ traders. Data released weekly at 3:30pm ET using Tuesday's positions. Reports based on position data from reporting firms. Historical data available from 1986 to present
Adobe Acrobat 9 allows batch printing through Document Processing. Printer settings can be customized for bulk printing. Adobe Acrobat can merge multiple PDFs for simultaneous printing. Mac users can print through Finder's Print option
Flame is visible, gaseous part of fire caused by exothermic chemical reaction. Temperature and color depend on fuel type involved in combustion. Flames can become plasma when hot enough with ionized gaseous components
Nathan Ames patented first escalator in 1859, but no working model was built. Jesse Reno created first working escalator in 1896 at Coney Island. Charles Seeberger developed first commercial escalator in 1899. Otis Elevator Company became dominant manufacturer in early 20th century