The tag has no usage guidance.

learn more… | top users | synonyms

-2
votes
4answers
106 views

Why do computers have 65,535 TCP ports? [closed]

Why do computers have 65,535 TCP ports? Where does this number come from? What does it represent?
0
votes
3answers
24 views

I am confusing with the concepts: Input and Output devices

Concepts: "An INPUT is data that a computer receives. An OUTPUT is data that a computer sends." (Source: http://www.bbc.co.uk/) For example I am going to work with a MOUSE (input device). I ...
0
votes
0answers
39 views

Upgrading driver of a usb 3.0 ss to usb 3.1

This may seem odd but I was wondering if it was possible to upgrade the driver for a usb 3.0 SS controller to a usb 3.1. As far as I can tell there isn't much of a difference between the ports for ...
2
votes
1answer
58 views

A model of computing where software and hardware are the same [closed]

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
1answer
483 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.
6
votes
2answers
3k 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.
0
votes
2answers
6k 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, ...
6
votes
1answer
775 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 ...
3
votes
1answer
3k 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
822 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
206 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
2k 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. ...