The tag has no wiki summary.

learn more… | top users | synonyms

2
votes
1answer
66 views

Installing XP from the same partition

I have a rather unusual question. I have a computer with one disk with valuable data and no removable media. It is not possible to create a new partition on said disk. Basically what needs to be ...
1
vote
1answer
43 views

A model of computing where software and hardware are the same

First off, I'm not sure I'm asking this on the right site. Please let me know if my understanding is drastically wrong. Concept 1: Computing largely consists of shifting around "one dimensional" ...
1
vote
0answers
266 views

How to understand block size / line size?

I want to understand the theory behind block size and line sizes. I know, for instance, that a block size = 2^(number of bytes offset within the block), is it correct? Can you tell me where to look ...
1
vote
1answer
182 views

Theoretically(!) is it possible to write analog signal (sound) to HDD, like on magnet tape?

I mean, with hardware modifications of HDD, for example, by connecting directly to heads to record signal, and then play it back.
3
votes
1answer
1k views

Maximum amount of hard drives in 64-bit Linux?

Is there a maximum amount of hard drives that one can connect to a 64-bit linux machine? I'm not concerned with practicality, as my situation involves a VM.
1
vote
3answers
280 views

Computer Hardware Theory: Why binary bits?

Since this isn't a research-level question (seeing as I am not in a graduate program) I decided to plop on over here from the other CS Q&A site. Why do we use binary to encode information in ...
0
votes
3answers
4k views

Theory regarding MAC and IP address in network packet and frame content?

Okay, network theory and protocol questions for you guys: Assuming a router is using NAT, is a device's MAC address every actually exposed to the Internet? Or, does the router transmogrify (wow, ...
11
votes
5answers
17k views

How does parity work on a RAID-5 array?

I'm looking to build a nice little RAID array for dedicated backups. I'd like to have about 2-4TB of space available, as I have this nasty little habit of digitizing everything. Thus, I need a lot of ...
6
votes
1answer
533 views

How do Optical/Laser mice work?

The old fashioned mice worked via two wheels that are turned by a ball: Found here One represented the x-axis while the other represtened the y-axis. Turning one, would move the mouse in that ...
2
votes
1answer
2k views

Collisions in CSMA/CD Ethernet

I am confused about collisions in CSMA/CD Ethernet. When would a jam signal be sent? Why are jam signals sent? If two simultaneous packet transmissions interfere with each other, the two transmitting ...
1
vote
2answers
435 views

Biba and Bell-Lapadula

Does the Biba integrity model (No write-up, no read-down) necessarily conflict with the Bell-Lapadula security model (No write-down, no read-up)? Or can they both coexist in a single system?
0
votes
2answers
176 views

Why does a hard disk suddenly look to Windows as if it “needs to be formatted”?

This is more of a theory question, but what are the reason(s) for a disk to suddenly cause Windows to start saying it "needs to be formatted"? It happens to an IDE disk that I have in a cheap ...
6
votes
2answers
895 views

How far do electrons physically move in a single clock cycle in a (theoretical) 4GHz processor?

I was musing last night about computers and processors and this video of a 6-bit digital adding machine, and I know that 4 GHz seems to be the practical limit of mass-produced CPUs of the current era. ...
8
votes
4answers
691 views

Why does encryption not destroy the way networks work?

I've a very basic understanding of how encryption works. My knowledge insofar is that of CCNA discovery level on the CISCO courses (along with a few other things such as Steve Gibson and Leo Laporte ...
12
votes
4answers
1k views

Why is a FLAC encoded from a decoded MP3 bigger than the MP3?

To be more precise than in the title, suppose I have a MP3 file that is 320 kbps. If I decompress it, then logically, all the data except for roughly 320 kilobits out of each second of audio should be ...