The two players can also play online while using split screen. This game mode is normally exclusive to the Xbox 360 version of Left 4 Dead and Left 4 Dead 2, but may be accessed in the PC versions if you have a controller for the second player and modify some files.
Serial memory processing - Wikipedia. Serial memory processing is the act of attending to and processing one item at a time. This is usually contrasted against parallel memory processing, which is the act of attending to and processing all items simultaneously. https://en.wikipedia.org/wiki/Serial_memory_processing
Multi Store Model of Memory Saul McLeod published 2007 The multistore model of memory (also known as the modal model) was proposed by Atkinson and Shiffrin (1968) and is a structural model. They proposed that memory consisted of three stores: a sensory register, short-term memory (STM) and long-term memory (LTM). Information passes from store to store in a linear way, and has been described as an information processing model (like a computer) with an input, process and output. Information is detected by the sense organs and enters the sensory memory. If attended to this information enters the short term memory.