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92
votes
5answers
19k views

Why is serial data transmission faster than parallel?

Intuitively, you would think that parallel data transmission should be faster than serial data transmission; in parallel you are transferring many bits at the same time, whereas in serial you are ...
67
votes
11answers
30k views

Does streaming use the same amount of bandwidth as downloading?

Assuming the content is of the same quality (ceteris paribus), does streaming media (i.e. video, audio) use the same amount of bandwidth as downloading it? Say I was to download an HD movie from ...
49
votes
3answers
2k views

Does “Stopping” USB drives actually affect the drive?

I have always just unplugged my USB drives from my computer for years and nothing bad has happened; but I heard that you are supposed to use "Safely Remove Hardware" before removing a drive. What does ...
39
votes
16answers
22k views

Best way to get data off a computer with no support for USB or Ethernet?

A customer has a computer running Windows 98 (I know, cringe) and needs to take some data off the computer to put on a new laptop. I've tried using USB, but Windows 98 doesn't have USB storage ...
30
votes
3answers
5k views

What is the difference between a kibibyte, a kilobit, and a kilobyte?

This question got me wondering about the differences between these three ways of measuring size: a kibibyte, a kilobit, and the conventional kilobyte. I understand that these measurements have ...
14
votes
1answer
43k views

What data transfer rates are needed or streaming HD 1080p or 720p video, or standard quality video?

Want to know data transfer rates for streaming video, such as from an external hard drive, or from an NAS or a home network. All I'm asking about is the data transfer speeds for clean video streaming. ...
12
votes
4answers
51k views

How to search for newline or linebreak characters in Excel?

I've imported some data into Excel (from a text file) and it contains some sort of newline characters. It looks like this initially: If I hit F2 (to edit) then Enter (to save changes) on each of the ...
11
votes
6answers
1k views

Transferring a large amount of data between continents [duplicate]

Possible Duplicate: Free way to share large files over the Internet? What are some options for transfering large files without using the Internet? My wife's lab is doing a project here in ...
6
votes
2answers
1k views

transfer windows + data from laptop to desktop

I have an old laptop where all my applications (windows, office, itunes, and other apps) and all my data (music, home made video, pictures, documents). i want to transfer this laptop windows and data ...
5
votes
2answers
25k views

How can I Transfer Google Chrome's Data and Settings to another Google Account?

I use Google Chrome and I have 100s of bookmarks, history, search preferences, search engines, extensions, and apps installed. I want to have a new Google account, and I need to move everything from ...
5
votes
2answers
4k views

Sending text file contents to server using netcat?

There is a daemon process listening on port 5144, which I cannot to modify. I want to use netcat to send the contents of a text file to the server, but this causes netcat to hang the terminal until I ...
4
votes
5answers
18k views

How long (maximum length) can USB 2.0 signal travel using hubs?

I know that the maximum distance USB 2.0 cable can be is 5mtrs. I'm not sure of the implementation using hubs and the length it can reach. Are there alternate methods of increasing the signal to ...
4
votes
1answer
215 views

Can data tapes be recorded/played on a standard cassette recorder? [closed]

I just bought a TRS-80 PC-1 pocket computer with a tape deck interface. The tape deck has 2 standard 1/4" Mono jacks (input [speaker] and output [mic]) and 1 smaller one labeled "Remote". None ...
4
votes
2answers
7k views

An abnormal high pitch sound is coming from my hard drive

My hard drive is making a high pitched sound. And it has now for a few months, however in the past week or so the sound has gotten worse. What surprises me is that my laptop is not even a year old. I ...
4
votes
1answer
170 views

How do I test the speed of file transfers on my LAN?

I have a Macbook Pro (wirelessly connected to the Internet) and a G5 tower (connected via ethernet). The MBP wirelessly backs up to an external drive on the G5 tower. I would like to know how fast the ...
3
votes
3answers
144 views

External Hard Drive reformatting and data

I have an 100Gb external HD with bunch of stuff that was originally formatted to windows XP. I now have a mac and want to re-format the external to work with my Mac but dont want to lose the valuable ...
3
votes
2answers
1k views

Performance difference between SD and MicroSD cards?

If you compare a MicroSD card with an advertised speed of 48 MB/S to a full size SD card with an advertised speed of 48 MB/S (from the same manufacturer), should their performances be identical? Or ...
3
votes
2answers
439 views

Insane Burst of Copy Speed?

Check out the graph of this drive (SSD) to drive (7200 RPM) copy below. When I first started the file copy it bursted up to past 700 MB/sec. Then, after bursting, it flatlines at ~100 MB/s for the ...
3
votes
5answers
1k views

How do I move my PC to a VM instance?

Is there a way for me to take my current PC and transfer it to a VM running on the same machine or another machine? I am currently running Windows XP.
3
votes
3answers
23k views

How to execute a stored SQL procedure in Microsoft Excel?

How can I execute a stored procedure in Microsoft Excel and get all the data it returns?
3
votes
3answers
38k views

Extremely slow USB transfer speed

I am using Windows 7 32-bit, and have a Transcend 8 GB USB 2.0 flash drive. I have formatted the drive to NTFS using the Windows format tool. The problem is that when moving or copying files to and ...
3
votes
2answers
293 views

Server to Server transfer

I am currently trying to migrate my website from one host to a newer one. What FTP client allows direct server to server transfer without me physically downloading the files to my computer. Any other ...
3
votes
1answer
2k views

When does ethernet cabling need to be shielded?

I run IT for a small business that does primarily office type work (no manufacturing or high levels of electrical interference), and we're looking to build additional office space onto our current ...
3
votes
1answer
2k views

Backup data rate on Raspberry Pi maxing out at 5 Mb/s. Why?

I set up my Raspberry Pi as a Time Machine, as documented here. At the moment, the Raspberry Pi is connected to my MacBook Pro using a direct Ethernet cable. Also, an external hard drive (laptop ...
3
votes
2answers
374 views

Fastest way to change the type of a partition? NTFS -> HFS+

Currently I have a 1TB drive with the following arrangement 500GB NTFS (with my data on it) 500GB HFS+ (empty) I would like to change this to: 1TB HFS+ (with my data) How can I effectively ...
3
votes
1answer
1k views

Copy all contents of an Amiga harddrive to a PC

I have an old Amiga hard disk drive (CP2088 Conner drive). It is a 2.5" IDE drive (see bottom). How can I connect this to a PC, what software is needed, and how can I convert the entire disk to a ...
3
votes
1answer
117 views

Painless way of consolidating files across multiple machines/OSes

Just bought a NAS. So I thought I'd get all our photos, media files and pdfs consolidated, de-duplicated, de-junked and virus-checked and stick them all on it. We have 3 laptops, one running Windows, ...
3
votes
3answers
1k views

What's the difference between a hardware register and a memory-mapped register?

This has been puzzling, so I'll lay it all out here. Apparently, through MMIO, you can access external devices using a certain memory-mapped address, which would then be re-routed to that device ...
3
votes
1answer
220 views

How can I pin point a USB file transfer bottleneck in Unix?

I'm experiencing very slow data transfer speeds over USB 2.0 on my nix box and was wondering how I can pin-point the cause of the problem. I've looked into iotop and top but the cpu and mem figures ...
2
votes
7answers
12k views

Is there a easy way to calculate time for data transfer?

Are there any sites or easy methods of finding out it would take for file transfer over different speed links? For example, I need to find out how long it would take to download/transfer file of 75G ...
2
votes
1answer
231 views

How can I connect an external hard drive to a Windows 95 computer?

I have an old Windows 95 computer at home. It's a Dell Dimension XPS D266. I've decided to get rid of it, but first I want to get all of the data off of it. It has a 16 GB hard drive, and I have a new ...
2
votes
3answers
2k views

What's the fastest interface connection between a laptop and desktop pc, for data transfer? [duplicate]

I was wondering what's the fastest interface connection between a laptop and desktop pc for data transfer? considering the bandwidth data transfer rate. SATA: i mean take the either laptop HDD (Hard ...
2
votes
2answers
4k views

download speed is fast but transfer rate is slow

I've just changed ISP and I'm pretty disappointed with the transfer rate. My previous connection has a download speed of 1.08 Mb/s as seen from this site: http://speedtest.net and the download ...
2
votes
2answers
427 views

How to send a large file securely?

I need to send large files from a Linux machine to another using cryptography. The sender machine knows the recipient IP but not vice-versa. I don't need strong cryptography and prefer higher-speed ...
2
votes
4answers
257 views

What is the “safer way” to transfer a lot of files between 2 hard disks in 2 different computers?

By "safer" I mean that is less likely to produce file write errors, so there's no need to check file integrity after transfer. The problem is that some buses are more optimized for speed rather than ...
2
votes
2answers
198 views

How to determine throughput of a path between two hosts with multiple links

I saw similar questions while searching, so I thought this might be the most appropriate place to ask this question. I am unsure on how to calculate throughput of a data transfer path given ...
2
votes
1answer
451 views

One SD card transfers file to PC faster than another one

I have several Sandisk SD cards all rated Class 10. One card transfer files to my computer faster than the others. Specifically I had taken several pictures and used a different card each day. One ...
2
votes
1answer
324 views

Linux - transfer all files modified after a specific date to a new harddrive

I recently had my second hard-drive of the past semester begin to fail on me and become unable to ghost to a new drive. I still had the first hd that failed so we ghosted that drive but now I need to ...
2
votes
1answer
534 views

Exporting Thunderbird from Win7 32bit to Win7 64bit

I am trying to export my thunderbird mails and mail accounts from my old win7 32bit to a new win7 64 bit. Both have the same version (16.0.1). Earlier in this situation I just copy the Thunderbird ...
2
votes
2answers
531 views

Alternative to rsync for file level cloning?

I have 500gb of files that I want to copy to a temporary drive and then back. I would like to be able to do this as fast as possible. I checked out doing a block level clone, which is nice and fast ...
2
votes
2answers
2k views

What is the data transfer speeds within the disk, to other devices?

I use Debian 6 on a HP Elitbook 6930 with 2Gigs of RAM. I was copying two AVI files, 1.5 GB in total, and noticed that the data copying was done at the rate of 4MB/sec. When I copy same AVIs to my ...
2
votes
1answer
5k views

How can I add a list to Infopath drop down?

I have a list of values in excel/notepad that I'd like to use as the values for a Infopath drop down. Is there a way I can bulk add them rather than adding one at a time?
2
votes
1answer
2k views

Is it possible to transfer wifi settings from an android device to windows?

I have the information from a few wifi networks saved on an android device, is there any way to move this data over to windows 8.1? I have exported the .txt file from android that contains the ...
2
votes
3answers
99 views

Hard disk has one foot out the door. What should I do?

My computer has always had a loud (Fujitsu) hard drive drive. Since I bought it in 2007, its ticking has been noticeable during normal activity. Increasingly, it's made loud CLACK sounds (every ...
2
votes
2answers
404 views

Why are some PCs losing data coming on over USB serial?

I have an embedded device that connects to a PC using USB and enumerates as a USB serial port. The device spits out approximately 30 megabytes of data over a period of about 15 minutes. My PC is ...
2
votes
0answers
260 views

Distributing Large Dataset (80GB+) Over The Internet [duplicate]

I've seen some similar questions but these are dealing with files under 1GB and the answers generally recommend services such as Dropbox, S3 and Skydrive. This does not appear to be suitable for my ...
2
votes
3answers
104 views

Unidentifiable alert to “cancel transfers”

About 3 months ago, I purchased a Dell XPS 13 running Windows 8. Ever since, whenever I try to shut down/restart my machine, I get an alert that looks like this: This doesn't happen each time but ...
2
votes
1answer
593 views

Syncing Windows Phone 7 and Computer

For unknown reasons, my phone will not sync via Zune. I have asked on Microsoft Answers and the response is slow and useless! All software (phone and Zune) are up to date. I plug my phone into my ...
2
votes
1answer
113 views

Possibe data corruption in x-ray room

I built a small fingerprint ID system for a lab. Registration is done at a reception and identification at 2 other points. One point is the x-ray room The problem: Identification often seems to fail ...
2
votes
1answer
632 views

PCI-E bottleneck when transferring data between CPU and GPU

I've read that the transfer overhead between CPU and GPU is a big bottleneck in achieving high performance in GPU/CPU applications. Why is this so? According to Nvidia's bandwidthtest program, my ...