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But after going through the first 9 chapters, which are on intro to OS, process managment and memory management, the response I got from my students was that this book is very difficult to understand and I couldn't agree more.
I wouldn't say that all the chapters are like that but yes, there are few chapters in the process management section which I had to teach them from outside resources, the only help I took from the book is the topics that were covered. Infact when I first took this course, I had a difficult time understanding these chapters myself from the book, so I couldn't expect the students to do so.
One example is chapter 6, process synchronization, where they mention deadlock at many places, whereas the deadlock topic is discussed in the later chapter (chapter 7).
Good for experienced but don't expect the students to go through this book without additional resources.
By the way, can anyone explain the idea behind the dinasours on the cover?
On top of vagueness and ambiguity, the illustrations are poorly placed, sometimes pages after the accompanying text. Many chapters are confusing to the point of frustration, especially those concerning synchronization and paging. Some algorithms are oversimplified, while others are given in so much detail the basic concept is lost.
The book does however have its good points, hence my rating of 3. It's not so horrible that you can't learn from it. Some chapters are represented quite well. At the end of each chapter, the basis of that chapter's implementation in modern operating systems is given (Windows NT, Unix, Solaris etc.).
All in all, the book is faithful to its title but not worth the price. A good second choice if the book you want is out of stock.
It is assumed that readers will have some knowledge of high-level languages and general computer organization. The book does not spotlight any one particular operating system but rather presents concepts and algorithms that are common to many of the Oss that are commonly used today, including MS-DOS, Windows 2000 & NT, Linux, Sun Microsystems' Solaris 2, IBM OS/2, Apple Macintosh, and DEC VMS.
The book has 7 major parts:
1) Overview: What Operating Systems are, what they do, how they are designed, and where they came from. General history and explanations. Some discussion on hardware.
2) Process Management: How information is processed. Methods for process scheduling, interprocess communication, process synchronization, deadlock handling, and threads.
3) Storage Management: How main memory functions and executes. The mechanisms for storage of and access to data is covered. The classic internal algorithms and structures of storage management is discussed and the advantages and disadvantages of each.
4) I/0 Systems: The types of devices that attach to a computer. How the devices are accessed and controlled. Performance issues and examined thoroughly.
5) Distributed systems: The collection of processors that do not share a clock or memory. How distributed file systems are shared, synchronized, communicate, and deal with deadlocks.
6) Protection and Security: How mechanisms ensure that only certain processes that have obtained proper authorization can use certain files, memory segments, CPU, etc.
7) Case Studies: This is where individual real operating systems are discussed in depth. These systems are Linux, Windows 2000, FreeBSD, Mach, and Nachos.
Of course this is a very general list and omits many other aspects of Operating Systems that are included in the book. This 887 page book does not include formal proofs but it does contain (though it would be better to have more) figures, diagrams, examples, and notes to help explain concepts.
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The timelessness that many reviewers find a strength of the novel was, for me, a disappointing drawback. Granted, the measure of time is arbitrary and human concerns and relationships are universal and timeless, but this commonplace insight is hardly robust enough to carry the book.
The author's style is at times promising, but the text does not approach a literary height. Rather than drawing the reader in and focusing a close examination of the implications hidden or obscured in the text, Yehoshua provided me with an exercise in tedium. This is one of those books I wanted to put aside halfway finished, but hesitated to do so in hopes of a revelation that never comes. I am frankly puzzled why so many reviewers found this book compelling.
Unfortunately, this was the first book I read by Yehoshua. Unless someone convinces me otherwise, it will be the last. Even a great writer can produce an unworthy book. Others more familiar with his canon will have to decide if that is the case here.
The quality of the writing grabs you on the first page. Characters are drawn with accuracy and keen insight. The plot is beautifully developed. It is suspenseful but not in a predictable way, you see what's coming, but trust me you are still surprised and amazed. This book has several graphic love scenes.
Peter Abrahams is the author of eight previous novels, including " The Fan" and "Lights Out", which was nominated for an Edgar Award for best novel.
The quality of the writing grabs you on the first page. Characters are drawn with accuracy and keen insight. The plot is beautifully developed. It is suspenseful but not in a predictable way, you see what's coming, but trust me you are still surprised and amazed. This book has several graphic love scenes.
Pam @ MyShelf.Com
Abruptly, the book switches directions. (Perhaps Packer decided that readers must be as bored with Madison as she and Carrie were.) Without warning to mom, friends, fiance, or the reader, Carrie jumps in her car and drives to New York. (Apparently young women never meet with foul play in Madison--Carrie's mom and friends don't seem concerned about her disappearance--they all somehow know that she skipped town because she didn't want to deal with her feelings about Mike.)
Packer's leisurely style becomes lethargic once Carrie hits the Big Apple, where she quickly acquires a free place to live, the stereotypical gay buddy, and an enigmatic boyfriend, Kilroy. Except he's not an interesting enigma; Carrie never figures out what makes him tick, and neither do we. What's more, it's hard to care, or to understand what she sees in him. Nor does New York feel "real." Packer, who excels in portraying Madison, fails to capture any of the essence of the big city.
The reader is still inside Carrie's head, but not a lot seems to be going on there. Much of her behavior is inexplicable. For example: she's planning to come to Madison for a visit (Rooster's wedding). Being a talented seamstress, she buys the most gorgeous, expensive fabric in the most upscale fabric store in New York and fashions a stunning outfit for herself. Then, at the last moment, she decides not to go. This scene, which could (and should) have some emotional depth--might even explain Carrie's internal state of disrepair--is simply flat.
Finally, Carrie comes home to Madison (she never should have left) and the story picks up again--but by then I was tired of her whining, her lack of insight, her poor impulse control, and her inability to learn from her past mistakes.
Other reviewers have mentioned the sex scenes. I suspect that a well-meaning friend or editor told Packer that she needed to spice up her book, and that's why she inflicted these embarrassing and ineptly written episodes on her readers.
Bottom line: not awful, not great, could have been better.
While I do not blame Carrie for leaving behind her hometown and heading out for a life of her own, she could have at least had some closure with her family, friends and most certainly with Mike. She spends her entire time in this book running away which causes the reader to have no real connection with her, we just cannot empathize. She meets Kilroy while in New York and jumps into a relationship with him. Then she is torn between her life there and her obligations to the people back at home. Carrie just cannot make a decision and face the consequences.
We want to see Carrie mature and learn something from the choices that she has made, but by the end, I just felt let down. She never had the courage to truly follow her heart. She let others choose for her, even after her courageous move away from home.
This book does however raise some interesting questions for ourselves. What would you do in such a situation? Would you choose loyalty over love?
Also, the author was able to use some beautiful prose in this book. Her writing ability is wonderful, I just think that the characters themselves were a little unrealistic.
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Historical fiction may be the most difficult genre to write. While plotting and character are required for any good novel, historical novels also demand the right tone. This, to me, is where Henry and Clara breaks down. At times, characters become mouthpieces for speeches that seem political anachronisms. Other times characters speak in naive, sentimentalisms that read like a Hollywood vision of the era. In these cases, the reader is jarred by a tone that doesn't quite fit. In general, the author puts his own machinations too much in the foreground, wrecking the suspension of disbelief that historical fiction requires.
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This book takes a different look at his presidency and offers some challenging new ideas for "Lincoln Lovers". Indeed, anyone who has read some decent civil war history outside of a high school or college textbooks will know that the civil war was about much more than the just the one issue of slavery and abolition. Like many wars throughout history, they are usually about money and power.
You will find within its pages a clear and concise arguement against the more popular view of Abe Lincoln. Thomas J. Dilorenzo describes a very clear picture of what the Lincoln presidency was REALLY about...
raising import tariffs in the south to get more money...
ignoring the constitution whenever it didn't suit his agenda...
using "dictator-like" tactics to increase his power...
and ultimately increasing the power of the federal gvt. itself.
I always enjoy a book that has the guts to argue against the popular myths that we are usually taught in school in place of any real history. Get this book and see Honest Abe from a different point of view.
Prof. Thomas DiLorenzo has written an excellent work providing a "new look" at Lincoln, "his agenda" and an "unnecessary war." Actually, the look presented isn't exactly new. Authors have criticized Lincoln for a long time and books have been written about the brutality of the War Between the States and the centralizing effects of Lincoln's revolution. Nonetheless, this book gathers all of that information and makes it easy for the layman to digest.
As Prof. DiLorenzo shows, the key to understanding Lincoln is not slavery, but his life-long devotion to Henry Clay and his "American system." Simply put, Clay believed in "internal improvements" (government spending projects) and tariffs. This is what we today might call "big government" and required centralization. Seen in this light, Lincoln's aims are understandable - expand the power of government, restrict civil liberties, and defeat secession "by any means necessary." That explains the rise of centralized banking, the income tax, and "corporate welfare" during Lincoln's reign.
On issue after issue, Prof. DiLorenzo sets the record straight. For example, we are told that secession was "treason." Yet Lincoln had supported the right to succeed in 1848. In fact, two states (Virginia and New York) had ratified the Constitution with a proviso that they were not giving up their right to secede. Lincoln is portrayed as the liberator of the black man, yet he stated that he did not believe in racial equality.
Abraham Lincoln may not have been the "great emancipator," but Prof. DiLorenzo shows that he was the "great centralizer." It was Lincoln who more than anyone destroyed the limited government that the founders created. No wonder he is praised by the left and the neo-conservative "right."
"The Real Lincoln" by Thomas J. DiLorenzo is a 2-3 day read (for average readers like myself) and the best treatise on Lincoln and the War of Secession I have read. The impetus behind this historic tragedy can be best identified as: tariffs, subsidies, and banking; in a word, EMPIRE. Sound familliar? It should because these are the very problems we face today in America.
After reading this book, the "War against Slavery" will have the same hollow ring as the "War against Drugs" and the "War against Terrorism." Now that's something we can all relate too, eh? This book is definite ammo against anyone who is so naive to think that Lincoln "freed the slaves."
Buy it. Read it.