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Questions tagged [standards]

The tag has no usage guidance.

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0answers
25 views

SD Card Reader Standards [on hold]

So I am confused about the SDXC read standards compatability. I understand that UHS-I/II/III/Express define bus interfaces and UHSII added a 2nd row of pins. UHSIII achieves higher speeds than that. ...
0
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0answers
24 views

Why does my HDMI cable have a “barrel” on both ends [duplicate]

My cable TV provider included a strange looking HDMI cable in their install package. The cable is for connecting my PVR to my TV. Unlike a standard cable, this thing has what I'm calling a plastic ...
0
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0answers
12 views

Getting SCART from HDMI 2.0 for an old TV

I am trying to get a SCART output from Win10 for my old tv (20+ years old but confirmed working from a freeview box). I got this converter from amazon but due to my unfamiliarity with HDMI standards, ...
0
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1answer
24 views

How to know/contact a community which hold an API (ODBC API)

I am currently working with the unix-odbc API to create my own ODBC driver. I found on wikipedia that ODBC is a standard and is implemented by communities. In computing, Open Database ...
11
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1answer
1k views

Different Print Page Dimensions Under Same Standard (A4)?

2 different reputable sources list 2 different A4 page dimensions: 8.27 x 11.69 and 8.27 x 11.7. Furthermore, I have 2 different PDF resize programs. 1 outputs A4 files as 8.26 x 11.69, the other ...
1
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1answer
26 views

What is the standard for assigning rDNS to unused hosts?

In a range with unused hosts, is the standard to set the rDNS to a generic default one within the network (such as the IP address dot the company's domain name) or is rDNS not meant to be set for an ...
0
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1answer
116 views

ISO 24711: How to calculate page yield for a combination cartridge product?

Printer manufacturers list their cartridge page yields on their sites using the ISO 24711 standard. Now there are also products which are "bundles" of cartridges. For example, you could have a product ...
0
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0answers
182 views

Modifying a MP4's “standard” parameter (from NTSC to PAL) with ffmpeg

I have some MP4s encoded with the Mainconcept H264 encoder at resolution 1920x1080 with framerate 25fps interlaced top-field first. MediaInfo reports these files having a (video format) standard of "...
0
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1answer
398 views

SVG linear gradient displayed differently by different software when x2 attribute is not present

I’ve recently imported and edited a file in Inkscape. I saved the image as “optimized SVG” in Inkscape, but when I opened the resulting file in different programs, some displayed it the same as ...
2
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1answer
1k views

Why is ~/.local/share a two-level directory?

I've never seen anything under ~/.local other than share, and the XDG Spec doesn't mention any other directories under .local. What is the motivation for having two levels of directories here as ...
0
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1answer
317 views

Should Single Quotes Be Used for Multiple Row MySQL UPDATEs?

When you are performing a SQL UPDATE on multiple rows in MySQL, it seems that you can either put single quotes around every value or not and it will produce the same results. Is there a reason for ...
0
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1answer
170 views

Why was 568a / 568b developed for structured cabling, why wasnt alphabetic order used ?

Why was 568a / 568b developed and why didnt they just do it alphabetically eg blue, blue white, brown, brown white, green, green white, orange, orange white. I understand that according to structured ...
0
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0answers
690 views

Are these “slide-in” interchangeable plug adapters standardized/generic?

I'm sure I have or had at least one other device with this handy feature, but here's a photo of my Lenovo netbook's wall-wart power supply with the Australian slide-in adapter plug detached. This is ...
1
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1answer
7k views

Why the trend to have SSID prefix start as “Direct-xx”?

I've noticed this trend that WIFI SSIDs now start with a prefix of "Direct-xx" (ex: Direct-EK-Bravia). I've been unable to find anything that points to a new standard or requirement? Is this just say ...
1
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3answers
205 views

Where do I put a fileshare in FreeBSD?

I'm wanting to set up a general purpose file share on my FreeBSD box. I'm planning on making it available via multiple services (nfs/samba/etc) but I'm wondering if there is a particular place that is ...
-1
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2answers
72 views

Are there any byte-level RAID standards, and if not why?

If you want data durability, you make backups. You might also want to use RAID to improve uptime, and to prevent online data loss. One can use software RAID, onboard/motherboard RAID, or a separate ...
1
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1answer
258 views

General mask for a telephone number?

I'm making a web form and wanted to have a general template for a phone number. In my experience every phone number might be represented in 13-digits format: xxx-xxx-xxx-xxxx. For example the country ...
-2
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1answer
1k views

What does the “s” letter mean after video format's resolution, DDDDs?

Video resolution is often written as DDDDl (where D - is digit and l is letter). For example 1080i - is 1920x1080 interlace and 720p is 720x576 progressive. But I've just watched a 3D video on ...
9
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1answer
477 views

What is the purpose of allowing comments inside email addresses?

According to the standard, it's possible to insert 'comments' inside email addresses, such that john(hello @(world!) )@example.com and john@(my)example.com direct to john@example.com. The standard ...
0
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1answer
981 views

When terminating a straight through network cable, should I use 568A or 568B?

What the title says, really. Sure, it'll work either way, even if I order them by my favourite colors, provided they are the same in both ends, but what is the "correct" standard to use with 100BaseTX ...
5
votes
1answer
4k views

Why should one prefer lower case file extensions like .jpg over uppercase ones like .JPG?

Many (most?) programs note file extensions in lower case. ls command in bash even prints foo.jpg highlighted as picture by default but not *.JPG. Lower case characters are better to distinguish from ...
0
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0answers
25 views

Is there a standard for specifying weather-related preferences?

I find over and over again that weather applications and web sites default to temperatures in °F and wind speeds in mph. My local standard (which is "local" in most of the world, I believe) is °C and ...
3
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2answers
1k views

Crimping T568A vs. T568B color scheme: Does it matter electrically?

I have bulk Cat 5e Ethernet cable with "TIA/EIA-568B.2" stamped on the jacket. I'm assuming this means I should use the T568B color scheme. If I were to crimp both ends using the T568A color scheme ...
3
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1answer
2k views

Why are USB connectors different from RJ45/Ethernet connectors?

I note that USB cable and Ethernet cable (RJ45/Cat5/...) have the same function : to transmit data as fast as possible over a wire or a port that we can connect and disconnect. In their evolution they ...
1
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1answer
2k views

Behavior of DHCP-client

This is a question about the Internet protocol standards. The DCHP-client (dhcpcd-5.2.10 from Android 4.x) initializes an interface The DHCP-client sends a DHCPDISCOVER message DHCP-server sends a ...
0
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1answer
58 views

Is there any STANDARD U.S.-compatible keyboard layout for typing extended Latin?

I am getting REALLY tired of adjusting my typing habit when needing to type characters such as ø, å and æ to name a few, after switching from Mac OSX to Windows to Mac OSX, which I unfortunately have ...
0
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1answer
108 views

Determine which Wi-Fi standard is being broadcast

I am on a Wi-Fi network that I think is 802.11b, judging by the low bandwidth I have, if compared with a wired connection. But how can I confirm that this wireless network is broadcasting 802.11b ...
1
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0answers
140 views

Is there A Standard Format For Describing Network Architecture/Topologies

I'm looking into tools for automatically mapping network resources that create hardware and software diagrams of the network such as WhatsUp Gold, HP TopTools, etc. Is there a standard format, XML ...
3
votes
2answers
594 views

SATA connector position on a hard disk

I have a external SATA drive enclosure that connects via USB to a PC/Mac and it accepts a bare SATA drive being slotted directly into the enclosure, much like a hot swappable disk you would find in a ...
104
votes
2answers
16k views

Is there a standard name for the “standard” computer screw?

I have the unfortunate task of writing a technical document, and I know the government is a stickler for unnecessary detail. Is there standard name for the standard computer screw? Also, what is the ...
2
votes
1answer
1k views

Why is Internet Explorer not a standards-compliant browser?

Disclaimer: This is not a rant question whatsoever. I do a lot of web development and I manipulate websites on a daily basis at my work. Something I always come across when fixing things is that ...
0
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3answers
139 views

Why Standards Place Limits on Data Transfer Rates?

This is a rather general question about hardware and standards in general: Why do they place limits on data transfer rates, and disallow manufacturers from exceeding those rates? (E.g. 100 Mbit/s for ...
3
votes
1answer
823 views

Associate ISO week date with a month

is there any standard way to associate a ISO week number with a specific month? Let's say we have week 35 this year (from 08/29/2011 to 09/04/2011), does this week belong to August or September? I'...
1
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1answer
1k views

Which regular expression standard is used in grep?

Is the regular expression standard used in grep POSIX + ASCII or something else is mixed in?
1
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3answers
947 views

Display (screen) Resolution Standard Ratios

The screen resolutions 800 x 600 & 1024 x 600 have the aspect ratio 4:3 and this is a standard. What are the other resolution standards? For example: Widescreen is 16:9 Extra Wide HD etc.
2
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1answer
797 views

Ubuntu package install directory standards

I've been trying to find some documentation that defines the standard which Ubuntu uses for installing applications. I'm making a web app that I want to install it in the correct places. As an ...
2
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4answers
471 views

Is passing the Acid3 test important?

I use Firefox for my primary browser but I've noticed it doesn't completely pass the Acid3 test. Well I know that most sites will still continue to work even though my browser isn't 100% standards-...