Backslash

Backslash: Why Does Windows Use Backslashes for Directories?

Backslash! A punctuation mark in English is used to separate ideas into coherent packages. You are probably familiar with commas, semi-colons, apostrophes, and dashes. Slashes are also used to categorize words. However, their functions are a bit more complicated than just ending ideas.

Backslash

Backslash vs Forward Slash

Slashes are recognized as oblique, slanting lines. A backslash (\) tilts towards the left, while a forward slash (/, also known as a virgule) tilts towards the right. They seem similar, but they have vastly different uses.

For one, a backslash is not actually an English punctuation mark and is rather used for a different type of language. It is primarily used in typing code and interfacing with the Windows operating system. It establishes directories and file paths.

Examples of Backslashes

  • C:\

This is the standard notation for the hard drive’s directory in Windows OS.

  • F:\Pics\IMG.jpg

This notation points to an image file “IMG” located in the “Pics” folder which is found within the “F” directory.

Backslashes are never used while writing in English. That function goes to the forward slash.

When and How to Use a Forward Slash

Forward slashes are actual punctuation marks in English with several uses.

Tech savvy individuals will notice forward slashes are used to separate parts of website addresses on the internet.

  • https://www.google.com/
  • https://www.yoursitehere.com/about

When taking notes during a lecture, you may have used slashes to abbreviate certain words to save yourself time. You may have also seen this format when filling out an application.

  • b/c – because
  • w/ – with
  • w/o – without
  • n/a – non-applicable, not available

A slash may be used in place of the words “or,” “and,” or “per.”

  • The hotel charges $80/night on off-peak days.
  • Farmer John could only sell his crop at $5/bushel.
  • Each student must take his/her own exam.
  • Michael has an MBA/Ph.D. in psychotherapy with several decades of experience under his belt.

We use slashes when writing the date:

  • 1/20/2020

When notating a fraction we separate the numerator from the denominator via a slash.

  • 1/2 – one half
  • 2/3 – two thirds

You may have seen slashes (with spaces) used to indicate line breaks in poetry, songs, or plays. Note that it does not matter which punctuation comes before the line break, or whether there is the punctuation at all.

  • But soft! What light through yonder window breaks? /
  • It is the east, and Juliet is the sun. /
  • Arise, fair sun, and kill the envious moon, /
  • Who is already sick and pale with grief, /
  • That thou her maid art far more fair than she: /
  • Be not her maid, since she is envious; /
  • Her vestal livery is but sick and green /
  • And none but fools do wear it; cast it off.

Finally, forward slashes are used to note connected or contradicting ideas.

  • The east/west axis on a globe corresponds to longitude.
  • The whole good cop/bad cop cliche has been played out.
  • There is great joy/sadness in moving away from home for the first time.

You never want to use a backslash where a forward slash is appropriate in English grammar. Remember that backslashes are strictly used only for code and interfacing with computer operating systems.

How to Use a Forward Slash

Forward Slash

Why Does Windows Use Backslashes for Directories?

If you are a coder yourself, you may notice that forward slashes are used prominently in today’s coding programs. So why does the Windows OS primarily use backslashes to denote paths? The answer lies in its history of development.

In the original version of Microsoft Windows in the 1980s (MS-DOS 1.0 to be exact), the forward slash command had a specific use in the operating system. In fact, the first Windows OS had no support for directories or file paths. When MS-DOS 2.0 released with directory support, the creators had to figure out what command to use to notate file paths. They couldn’t use the forward slash since that would upend several programs already attuned to that format. Because it was already similar to the one currently in use, the backslash symbol becomes the indicator of file paths on MS-DOS.

Nowadays we don’t have to pay too much attention to which slash we use when interfacing with computers. Software publishers are aware of how confusing it can be for the average person to keep up with these nuances, so they design their programs accordingly. Most software programs will automatically correct a misused slash to the appropriate one. For example, typing https:\\www.google.com\ into most modern browsers will correct the backslashes to forward slashes and send the user to the website. Even some native Windows programs accept forward slashes as file path notation.

However, not all programs accept either slash. It may not be important for the average computer user to know, but for those with careers involving IT and technology, that could be the difference between finding the problem and a huge headache.

Backslash Infographic

Backslash

Quiz Yourself

Now test your knowledge of backslashes and forward slashes with this simple “right-or-wrong” quiz. Enjoy, and remember the rules of both types of slashes!

(Hint: act like it’s 1990 – which slash is exclusively used for coding?)

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