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11
votes
3answers
642 views

Will a new processor with slower clockspeed run legacy applications faster?

I'm using Linux and have an old P4 with about 3 GHz clock speed. Will a newer chip that had slower clock speed run my legacy applications faster or slower? I only use one application at a time, an ...
7
votes
4answers
702 views

Does the 6502 put FF in the stack pointer register as soon as it gets power for the first time?

I'm reading about the 6502 processor's instruction set from the many links at 6502.org, and one tutorial states: The stack pointer (S) points to a byte on Page 1, that is, to a byte whose address ...
8
votes
3answers
8k views

Why can't Windows 7 be installed on a ARM processor based system?

Today I was reading some news(1, 2, 3, 4) about Microsoft Windows 8 and saw that one of the new features is that it can run over a ARM processor based system. This make me wondering the reasons that ...
5
votes
3answers
5k views

What do the terms “asynchronous” and “synchronous” mean, with respect to the definition of an interrupt?

Quoted from http://en.wikipedia.org/wiki/Interrupt: an interrupt is an asynchronous signal indicating the need for attention or a synchronous event in software indicating the need for a change ...
9
votes
6answers
49k views

What's the main difference between Intel processor generations?

What are the main differences between each processor generation of Intel processors/chipsets? Is there a performance difference? I've already seen processors from first to sixth generation, however I ...
5
votes
1answer
482 views

Intel's AES-NI performance: Isn't the hard drive the bottleneck?

Will I see a performance gain with AES-NI using dm-crypt/LUKS for hard drive system encryption? Isn't the hard drive the bottleneck even without hardware acceleration?
0
votes
3answers
192 views

how to find machine architecture and OS capability

When I run command 'uname-a' on my linux machine ...the result is 'i686' . My OS is Fedora14 . what does that i686 means ? is it 64bit architecture of CPU , or does it indicates my OS capability ...
2
votes
2answers
212 views

What's the difference between the graphics capabilities in Sandy Bridge and an accelerated graphics card? [closed]

I've been reading that the big news with Sandy Bridge processors is that they can process video much faster. Does this mean that we no longer need accelerated graphics cards that can do this? Are we ...
3
votes
3answers
582 views

“Processor register” and “IO register”

I was wondering if processor registers and IO registers are the same concept? Are they registers in CPU or in some IO devices? I picked up IO registers from this Super User question.
57
votes
6answers
13k views

How does a CPU 'know' what commands and instructions actually mean?

How does a processor 'know' what the different commands mean? I'm thinking of assembly level commands like MOV, PUSH, CALL, etc...
4
votes
3answers
8k views

What is the meaning of dual core vs. dual cpus?

What is the difference between multiple CPU processors (ie: Pentium D) and multicore processors (ie: Core 2 duo)?
2
votes
0answers
222 views

How to tell if an EXE is 32-bit or 64-bit? [duplicate]

Possible Duplicate: Quick way to tell if an installed application is 64-bit or 32-bit What's the easiest way to know if a Windows EXE is 32-bit or 64-bit?
3
votes
2answers
248 views

64 bit Operating System?

What we are getting if someone says "my machine is 64-bit computer" . What is the difference between 64-bit computer (I mean the CPU architecture) and operating system (Windows 64-bit OS). Please ...
3
votes
3answers
197 views

How is bit number of register determined?

Is it true registers are 32-bit in x86 and 64-bit in x86-64?
0
votes
2answers
808 views

What are the benefits of stacked/on chip memory?

I am trying to find some reference materials to write up something about stacked memory's future. I take this to mean memory that is stacked on the processing chip that allows to faster access time, ...
16
votes
7answers
1k views

Why does the heat production increase as the clockrate of a CPU increases?

The whole multi-core debate got me thinking. It's much easier to produce two cores (in one package) then speeding up one core by a factor of two. Why exactly is this? I googled a bit, but found ...
13
votes
10answers
50k views

How can I determine if the current version of Windows is either 32-bit or 64-bit from the command line? [duplicate]

What's the command line to find out if the OS is running a 32-bit version or 64-bit of Windows?
2
votes
3answers
10k views

Which Windows 7 Version (32 bit or 64 bit) should I install on a new MacBook Pro with 4 GB of RAM?

I have just bought a brand new MacBook Pro with 4 GB RAM, and was wondering which Windows 7 version 32 bit or 64 bit I should install with BootCamp, in order to do Visual Studio development? Is ...
151
votes
19answers
27k views

32-bit vs. 64-bit systems

What are the differences between 32-bit and 64-bit systems? If you have used both of them, what kind of sharp differences have you experienced? Would it be a problem to use 32-bit programs on ...
28
votes
9answers
128k views

How can I enable PAE on Windows 7 (32-bit) to support more than 3.5 GB of RAM?

I know that Windows XP 32-bit can be configured, through PAE, to support more than 3.5 GB of RAM. Is there a good tutorial to do this with Windows 7 32-bit? As to why I don't simply use 64-bit ...
8
votes
4answers
12k views

Is my i7 920 Intel processor considered ia64 or x64?

Is my i7 920 Intel processor considered ia64 or x64?