Detroit's Marwil Bookstore or purchasing them on the internet from online competitors, such as Amazon and eBay. After Marwil had been in business at WSU for some 59 years, Brian Kramer had seen textbook prices nearly triple over a period of two decades. According to a 2005 survey conducted by the National Association of College Students, about 25 percent of students had begun purchasing textbooks online. Another drastic change was when Wayne State opened a $6 million, 28,000-square-foot Barnes & Noble college bookstore right across the street in 2002. Marwil didn't have the fancy store front, cafe or music and apparel that was
COM file and .com "com"mercial web sites. COM file A COM file is a type of simple executable file. On the Digital Equipment operating systems of the 1970s, codice_1 was used as a filename extension for text files containing commands to be issued to the operating system (similar to a batch file). With the introduction of CP/M (a microcomputer operating system), the type of files commonly associated with COM extension changed to that of executable files. This convention was later carried over to DOS. Even when complemented by the more general EXE file format for executables, the compact COM files remained viable