המחברת שלה על השולחן ליד המחשב.

In Hebrew, simple present-tense sentences often leave out the verb to be.

So:

המחברת שלה על השולחן ליד המחשב
literally looks like
her notebook on the table next to the computer

but it naturally means Her notebook is on the table next to the computer.

This is normal Hebrew.
You usually do not add היא to mean is here.

If you want a more explicit verb, you can say:

המחברת שלה נמצאת על השולחן ליד המחשב
= Her notebook is located on the table next to the computer

שלה means hers / of her / her.

Hebrew often shows possession with:

noun + של-form

So:

המחברת שלה
literally: the notebook of her
natural English: her notebook

This pattern is extremely common in Modern Hebrew.

Some related forms are:

• שלי = my/mine
• שלך = your/yours
• שלו = his
• שלה = her/hers
• שלנו = our/ours
• שלהם / שלהן = their/theirs

Because המחברת שלה is the normal way to say her notebook when you mean a specific notebook.

The ה־ makes מחברת definite: the notebook.
Then שלה tells you whose notebook it is.

So Hebrew often says something that is structurally close to:

the notebook of hers

where English usually says simply:

her notebook

מחברת שלה without ה־ can sometimes be used, but it more often sounds like a notebook of hers, not the neutral everyday way to say her notebook.

In everyday Modern Hebrew, המחברת שלה is the natural choice.

A form like מחברתה uses an older or more literary-style possessive ending. Native speakers usually do not use that form for ordinary conversation about objects like notebooks.

So for learners, the safe and natural option is:

המחברת שלה

מחברת usually means notebook or exercise book.

It is a feminine singular noun.

That matters for agreement later. For example:

• המחברת שלה חדשה = Her notebook is new
• המחברת שלה גדולה = Her notebook is big

Both חדשה and גדולה are feminine singular to match מחברת.

Because they are also definite:

• השולחן = the table
• המחשב = the computer

Hebrew marks definiteness with ה־ attached to the noun.

So the sentence contains three definite nouns:

• המחברת = the notebook
• השולחן = the table
• המחשב = the computer

They are prepositions:

• על = on
• ליד = next to / beside / by

So:

• על השולחן = on the table
• ליד המחשב = next to the computer

These two prepositions stay as separate words.
That is different from some shorter Hebrew prepositions like ב־, ל־, and כ־, which can attach directly to the word.

Usually, the most natural reading is:

the notebook is on the table, and that table is next to the computer

But in real usage, it can also feel like a general location description of the notebook itself.

So the sentence has a small amount of the same kind of ambiguity that English can have.

If you want to make it clearer that the table is next to the computer, you could say:

המחברת שלה על השולחן שליד המחשב
= Her notebook is on the table that is next to the computer

The given order is the most neutral, everyday order:

המחברת שלה על השולחן ליד המחשב

That is a normal subject + location pattern.

You can change the order for emphasis, but it may sound more marked. For example:

על השולחן ליד המחשב המחברת שלה
can work in some contexts, but it sounds less neutral and more like you are highlighting the location.

So as a learner, the original order is the best default.

A simple pronunciation guide is:

ha-makhberet shela al ha-shulchan leyad ha-makhshev

A few helpful notes:

• ch / kh here is the throaty sound in Bach or Scottish loch
• המחברת = ha-makhberet
• שלה = shela
• השולחן = ha-shulchan
• המחשב = ha-makhshev

Just replace שלה with another של form:

• המחברת שלו על השולחן ליד המחשב = his notebook
• המחברת שלי על השולחן ליד המחשב = my notebook
• המחברת שלנו על השולחן ליד המחשב = our notebook
• המחברת שלהם על השולחן ליד המחשב = their notebook

The rest of the sentence stays the same.