عندي كمبيوتر جديد بالبيت.

In Levantine Arabic, possession is often expressed with عند plus a pronoun ending.

• عند = at
• -ي = me / my

So عندي literally means at me, but in natural English that is usually translated as I have.

This is very common in spoken Arabic:

• عندي سيارة = I have a car
• عندك وقت؟ = Do you have time?

Arabic does not usually use a separate verb like English to have here.

No. عندي already tells you the subject is I because of the ending -ي.

So:

• عندي كمبيوتر جديد بالبيت = natural
• أنا عندي كمبيوتر جديد بالبيت = also correct, but more emphatic

Adding أنا can sound like:

• As for me, I have a new computer at home
• or it can add contrast

In normal conversation, leaving أنا out is very common.

Arabic does not have an indefinite article like English a/an.

So a bare noun like كمبيوتر can mean:

• a computer
• computer, depending on context

If the noun were definite, Arabic would mark that with الـ:

• الكمبيوتر = the computer

In your sentence, كمبيوتر is indefinite, so it naturally means a computer.

Because in Arabic, adjectives usually come after the noun they describe.

So:

• كمبيوتر جديد = a new computer

This is the normal Arabic order:

• noun + adjective

More examples:

• بيت كبير = a big house
• كتاب مفيد = a useful book

In English, the adjective usually comes first, but Arabic does the opposite.

Because the adjective has to agree with the noun it describes.

كمبيوتر is treated as:

• singular
• masculine

So the adjective is also:

• singular
• masculine

That gives you جديد.

If the noun were feminine, you would usually add ـة to the adjective:

• سيارة جديدة = a new car

If the noun were definite, the adjective would also become definite:

• الكمبيوتر الجديد = the new computer

بالبيت is made from:

• بـ = in / at
• البيت = the house / the home

So بالبيت means in the house or, more naturally, at home.

In Levantine, this is a very common way to say at home.

So even though the literal pieces are in the house, the natural meaning is often just at home.

That is just a normal difference between the languages.

In Levantine Arabic, البيت often means:

• the house
• the home
• home

So بالبيت is very often used where English would simply say at home.

This does not sound overly literal or strange in Arabic. It is the normal everyday expression.

Yes, you can.

Both can refer to being at home or in the house:

• بالبيت
• في البيت

In many everyday Levantine contexts, بالبيت is especially common and natural.

A rough way to feel the difference is:

• بالبيت often feels like at home / in the house
• في البيت can feel a bit more plainly locational: in the house

But in many situations, they overlap a lot, and both are understood.

Yes. كمبيوتر is very common in everyday Levantine speech. It is a borrowed word, basically the Arabicized form of computer.

A common pronunciation is roughly:

• kombyūter
• or kombyooter

You may also hear more formal Arabic words like حاسوب, but in daily Levantine conversation, كمبيوتر is very normal.

عندي is roughly pronounced ʿandi.

The difficult part is the first letter ع. It is a deep throat sound that English does not really have.

A simple learner-friendly approach:

• do not replace it with a strong English a
• try to start the word from the throat
• then say andi

So:

• عندي ≈ ʿan-dee

Even if your ع is not perfect at first, people will usually understand you. It improves with listening and practice.

A very common Levantine negative form is:

• ما عندي كمبيوتر جديد بالبيت

That means I don’t have a new computer at home.

Here:

• ما = negation
• عندي = I have

So ما عندي = I don’t have

This is one of the most useful everyday patterns in Levantine:

• ما عندي وقت = I don’t have time
• ما عندي سيارة = I don’t have a car

Yes, depending on context, it can.

Because عندي literally means something like at me / at my place, it can sometimes feel close to:

• I have a new computer at home
• There’s a new computer at my place

Usually the intended meaning is clear from the conversation. In many situations, English translates it best as I have. But the Arabic structure can sometimes feel a little broader than that.