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in computer processors the data path often consists of the following functional blocks the instruction register stores
not all computers have a hardware bit that is automatically set when a page is written to nevertheless it is useful to
compose your work using a word processor or other software as appropriate and save it frequently to your computer be
1 a program on the core i7 references local segment 10 with offset 8000 the base field of ldt segment 10 contains
1 why do many file systems require that a file be explicitly opened with an open system call before being read2
a third hole allocation scheme in addition to best fit and first fit is worst fit where a process is allocated space
1 describe a purpose for the file open system call that was not mentioned in the text2 to be able to make some
on a certain computer a program can create as many files as it needs and all files may grow dynamically during
studies of different file systems have shown that more than half the files are a few kb or smaller with the vast
consider the following method by which an operating system might implement sema- phore instructions whenever the cpu is
the description of semaphores in sec 633 states lsquolsquousually sleeping processes are strung together in a queue to
the nevercrash operating system company has been receiving complaints from some of its customers about its latest
1 suppose that a version of unix uses 2-kb disk blocks and stores 512 disk addresses per indirect block single double
imagine that you had to implement the unix system on an embedded system where main memory was in short supply after a
1 in windows 7 it is possible to set up an access control list in such a way that roberta has no access at all to a
write a program for unix or windows 7 that takes as input the name of a directory the program should print a list of
a word on a little-endian computer with 32-bit words has the numerical value of 3 if it is transmitted to a big-endian
various computers and operating systems in the past have used separate instruction and data spaces allowing up to 2k
1 why do io devices place the interrupt vector on the bus would it be possible to store that information in a table
when two local area networks are to be connected a computer called a bridge is insert- ed between them connected to
1 draw a finite-state machine for tennis scoring the rules of tennis are as follows to win you need at least four
1 why are computers equipped with multiple layers of cache would it not be better to simply have one big one2 a
1 many computer architects spend a lot of time making their pipelines deeper why2 a computer with a five-stage
importing and analyzing sales data-part 1 security enablers is a national company that provides security systems for
1 why have multicore chips suddenly appeared are there technological factors that have paved the way does moores law