مدير كلمات المرور في الحاسوب.

Not necessarily. By itself, it is most naturally understood as a noun phrase, not a complete verbal sentence.

It can mean something like:

• the password manager on the computer
• password manager on the computer

This kind of phrase is very common as a menu item, heading, label, or app name.

If you wanted to make it into a full sentence, you would usually add more words, for example:

• مدير كلمات المرور في الحاسوب مفيد.
  The password manager on the computer is useful.

Because مدير is the first word in an iḍāfa construction, often called a genitive/possessive construction.

In Arabic, when two nouns are linked like X of Y, the first noun usually does not take الـ, even if the whole expression is definite.

So:

• مدير كلمات المرور = manager of passwords / password manager

Here, مدير is the first part of the iḍāfa, so it appears without الـ.

This is normal and expected.

It is a chain of nouns linked together:

• مدير = manager
• كلمات = words
• المرور = the passing / passage, but together with كلمات it means passwords

So literally, the structure is:

• مدير كلمات المرور = manager [of] password words

More naturally in English:

• password manager

Arabic often expresses this kind of compound through iḍāfa instead of putting one noun directly before another the way English does.

Because كلمة المرور is the standard Arabic expression for password.

Literally:

• كلمة = word
• المرور = passing / access / passage

So:

• كلمة المرور = password
• كلمات المرور = passwords

This is a fixed expression, so it is best learned as a vocabulary item.

Because the plural meaning is carried by the first noun:

• كلمة المرور = one password
• كلمات المرور = passwords

The second noun, المرور, stays singular because it is not the thing being counted. It acts more like the second half of the expression.

This is common in Arabic iḍāfa expressions. For example, if you pluralize the first noun, the second noun often stays the same.

Because the fixed expression is كلمة المرور / كلمات المرور.

The noun المرور appears with الـ here as part of that established expression. In an iḍāfa, the second noun can be definite, and that often makes the whole phrase definite as well.

So:

• كلمات المرور = the passwords or simply passwords, depending on context

Arabic definiteness does not always match English word-for-word, especially in technical terms and labels.

It means in the computer or more naturally in English, on the computer.

• في = in
• الحاسوب = the computer

Arabic often uses في where English might prefer on, especially when talking about software, files, settings, or things located within a device or system.

So في الحاسوب is a normal way to say that something is located on or in the computer.

Because it refers to a specific computer already understood from context: the computer.

• حاسوب = a computer
• الحاسوب = the computer

In many real contexts, especially labels or interface language, Arabic uses the definite form when the reference is clear.

If you said في حاسوب, that would mean in a computer, which is less likely in a phrase like this.

A careful pronunciation is:

mudīru kalimāti l-murūri fī l-ḥāsūb(i)

Word by word:

• مدير = mudīr
• كلمات = kalimāt
• المرور = al-murūr
• في = fī
• الحاسوب = al-ḥāsūb

In connected speech, the final short vowels are often not pronounced in everyday reading, so a learner will often hear something closer to:

mudīr kalimāt al-murūr fī al-ḥāsūb

In fully vowelled, formal MSA, the phrase would most naturally be:

مُدِيرُ كَلِمَاتِ الْمُرُورِ فِي الْحَاسُوبِ

Here is why:

• مديرُ: nominative -u if the phrase stands as a title or subject
• كلماتِ: genitive -i because it is the second part of the first iḍāfa
• المرورِ: genitive -i because it is the second part of كلمات المرور
• الحاسوبِ: genitive -i after the preposition في

In normal unvowelled writing, these endings are not shown.

Yes. Both are used.

• الحاسوب is a more standard Arabic word for computer
• الكمبيوتر is a borrowed word and is also very common in everyday usage

So you might also see:

• مدير كلمات المرور في الكمبيوتر

Both are understandable. The choice often depends on region, style, and how formal or standardized the language is.

Yes, depending on context.

The Arabic phrase can suggest:

• password manager on the computer
• computer password manager

The exact English wording depends on what is being emphasized:

• If it is about location, on the computer fits well.
• If it is naming a type of software, computer password manager may sound more natural.

Arabic noun phrases often leave this kind of relationship slightly broader than English does, so context decides the best translation.