- Alien (rogerebert.com)
At its most fundamental level, “Alien” is a movie about things that can jump out of the dark and kill you. It shares a kinship with the shark in “Jaws,” Michael Myers in “Halloween,” and assorted spiders, snakes, tarantulas and stalkers. Its most obvious influence is Howard Hawks’ “The Thing” (1951), which was also about a team in an isolated outpost who discover a long-dormant alien, bring it inside, and are picked off one by one as it haunts the corridors. Look at that movie, and you see “Alien” in embryo.
- Extended memory (Wikipedia)
In DOS memory management, extended memory refers to memory above the first megabyte (2^20 bytes) of address space in an IBM PC or compatible with an 80286 or later processor. The term is mainly used under the DOS and Windows operating systems. DOS programs, running in real mode or virtual x86 mode, cannot directly access this memory, but are able to do so through an application programming interface called the Extended Memory Specification (XMS). This API is implemented by a driver (such as HIMEM.SYS) or the operating system, which takes care of memory management and copying memory between conventional and extended memory, by temporarily switching the processor into protected mode. In this context, the term “extended memory” may refer to either the whole of the extended memory or only the portion available through this API.