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Upgrading and Repairing PCs

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Thoroughly revised and updated, the latest edition of the definitive guide to computer hardware provides information on how to upgrade, maintain, and troubleshoot the newest hardware of personal computers, discussing the differences among them, as well as their various configuration options. Original. (Beginner/Intermediate)

1582 pages, Hardcover

First published January 1, 1989

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640 people want to read

About the author

Scott Mueller

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Scott Mueller is an author of books concerning personal computers, as well as president of Mueller Technical Research, a research and training firm. Many of his books are published by Que Publishing.

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5 stars
174 (46%)
4 stars
121 (32%)
3 stars
52 (13%)
2 stars
22 (5%)
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9 (2%)
Displaying 1 - 16 of 16 reviews
Profile Image for Erik Graff.
5,130 reviews1,358 followers
September 22, 2011
Being poor, I taught myself how to assemble and repair PCs with the aid of this book and others, obtaining parts from computer discards. Among the books referred to for these purposes, this was the best in those years.
Profile Image for Dylan.
16 reviews10 followers
August 30, 2016
I am a huge fan of this book. I tried reading it cover to cover, and got about half way through before quitting. It definitely isn't designed as such. It's more of a reference book, but it does that wonderfully. It goes into explicit detail on every single aspect of a computer. I was a little annoyed by just how far the book decided to go into the history of the parts. Most of what I have read was relating to the history, which has never been a subject I particularly cared about.

All in all, the book is invaluable to anyone who wants to know how a computer's hardware functions.
3 reviews1 follower
February 23, 2008
Several parts of this book are repetitious. It seems after 18 editions they'd eventually figure out that two subsequent paragraphs sometimes contain the exact same sentence. Otherwise it's an impressive volume of PC knowledge.
Profile Image for Paul.
15 reviews
March 18, 2010
Lots of info about computer hardware technology, but some is difficult to understand without college computer courses or a certification.
Profile Image for Thomas.
1 review1 follower
Read
September 28, 2010
This is definitely designed as a reference book, but it does offer some nice overviews and analogies that can aid in true comprehension of otherwise complex systems.
1 review1 follower
December 21, 2010
This book is very much informative, especially for curious minds, who want to explore the real inner working of computer
Profile Image for Carlos Meza.
3 reviews14 followers
January 20, 2011
This book taught me a lot about hardware and developmental history of computer.
52 reviews
June 29, 2014
page 118 | location 1799-1803 | Added on Sunday, 26 January 2014 10:27:27

Considering that main memory is used directly only about 1% of the time, if you doubled performance there, you would double the speed of your system only 1% of the time! That doesn’t sound like enough of an improvement to justify much expense. On the other hand, if you doubled L2 cache performance, you would be doubling system performance 9% of the time, which is a much greater improvement overall. I’d much rather improve L2 than RAM performance. The same argument holds true for adding and increasing the size of L3 cache, as many recent processors from AMD and some from Intel have done.


page 255 | location 3908-3913 | Added on Sunday, 26 January 2014 14:29:34

If the processor in your PC is like the engine in your car, the chipset represents the drivetrain and chassis. It is the framework in which the engine rests and is its connection to the outside world. The chipset is the frame, suspension, steering, wheels and tires, transmission, drive shaft, differential, and brakes. The chassis in your car is what gets the power to the ground, allowing the vehicle to start, stop, and corner. In the PC, the chipset represents the connection between the processor and everything else. The processor can’t talk to the adapter boards, devices, memory (in some models), and so on without going through the chipset. If you think of the processor as the brain, the chipset is the spine and central nervous system.


page 256 | location 3917-3918 | Added on Sunday, 26 January 2014 14:30:50

When deciding on a system, I often start by choosing the chipset, because the chipset decision dictates the processor, I/O, and expansion capabilities.


page 339 | location 5197-5205 | Added on Sunday, 26 January 2014 15:34:25

In this layered architecture, the application software programs talk to the OS via what is called an application programming interface (API). The API varies according to the OS you are using and consists of the various commands and functions the OS can perform for an application. For example, an application can call on the OS to load or save a file. This prevents the application itself from having to know how to read the disk, send data to a printer, or perform any other of the many functions the OS can provide. Because the application is completely insulated from the hardware, you can essentially run the same applications on different machines; the application is designed to talk to the OS rather than the hardware. The OS then interfaces with or talks to the BIOS or driver layer. The BIOS consists of all the individual driver programs that operate between the OS and the actual hardware. As such, the OS never talks to the hardware directly; instead, it must always go through the appropriate drivers. This provides a consistent way to talk to the hardware.


page 585 | location 8968-8969 | Added on Wednesday, 29 January 2014 00:52:41

Limiting how close two flux transitions can be is necessary because of the fixed resolution capabilities of the head and storage medium. Limiting how far apart two flux transitions can be ensures that the clocks in the devices remain in sync.


page 597 | location 9144-9149 | Added on Friday, 31 January 2014 20:10:55

The first hard drive appeared in 1956. One year later in 1957, Cyril Northcote Parkinson published his famous compilation of essays titled Parkinson’s Law, which begins with the statement, “Work expands so as to fill the time available for its completion.” A corollary of Parkinson’s most famous “law” can be applied to hard drives: “Data expands so as to fill the space available for its storage.” This, of course, means that no matter how big a drive you get, you will find a way to fill it. I know that I have lived by that dictum since purchasing my first HDD nearly 30 years ago.


page 608 | location 9312-9315 | Added on Friday, 31 January 2014 20:23:03

Magnified to such a scale, the heads in this typical hard disk would be about 1,361 feet long, 1,083 feet wide, and 333 feet high. (The length and height would be about equal to the Sears Tower if it were tipped over sideways.) These skyscraper-sized heads would float on a cushion of air that to scale would be only 5mm thick (about 0.2 inches) while traveling at a speed of 17.8 million miles per hour (4,958 miles per second), all while reading data bits spaced a mere 0.85 inches apart on tracks separated by only 0.98 feet!


page 631 | location 9661-9662 | Added on Friday, 31 January 2014 23:06:55

Thin-film plated media are manufactured by depositing the magnetic medium on the disk with an electroplating mechanism, in much the same way that chrome plating is deposited on the bumper of a car.


page 679 | location 10400-10404 | Added on Saturday, 1 February 2014 13:05:02

As previously mentioned, SSDs use NAND flash technology. Two subtypes of this technology are used in commercially available SSDs: SLC (single-level cell) and MLC (multilevel cell). SLC flash stores 1 bit in a single cell, whereas MLC stores 2 or more bits in a single cell. MLC doubles (or more) the density, and consequently lowers the cost, but this comes at a penalty in performance and usable life. SSDs are available using either technology, with SLC versions offering higher performance, lower capacity, and higher cost. Most mainstream SSDs use MLC technology, whereas more specialized high-end products (mostly for server or workstation systems) use SLC.


page 713 | location 10922-10924 | Added on Saturday, 1 February 2014 23:06:38

This single spiral track is about 5.77 kilometers, or 3.59 miles, long. An interesting fact is that in a 56x CAV (constant angular velocity) drive, when the outer part of the track is being read, the data moves at an actual speed of 162.8 miles per hour (262km/h) past the laser.


page 720 | location 11037-11039 | Added on Saturday, 1 February 2014 23:19:14

An 80-minute disc, therefore, really has something like 2.6GB of actual data being written, which, after being fully decoded and stripped of error-correcting codes and other information, results in about 737MB (703MiB) of actual user data.
4 reviews
August 29, 2021
wow! let me put this first i am student of computer engineering, in my previous semesters i have studied OS and microprocessor, there was a kind of void that was between information that I have gained from my semesters, and at that point i picked up this book I don't know about others but from my stand point of view that was a fantastic read.
Profile Image for Nicolas.
42 reviews
Read
September 4, 2023
TLDR: I read this book more than a decade ago and I can remember an idea of what has been. I will make a proper review once I read it again.
2 reviews
February 11, 2013
Very good resource. Packed with information. If you work on PCs, you should have this on your shelf.
1 review
August 28, 2013
Excellent tome on PCs. This is THE book. Every technician should have it. Period.
Displaying 1 - 16 of 16 reviews

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