Generally speaking, the level of electronic products in Taiwan Province is good, and if it is a well-known brand manufacturer, it has maintenance points in many cities in mainland China, so you can buy it with confidence.

As far as I know, computers are much more economical than mainland China. For us Taipei people, Guanghua Shopping Mall and NOVA in front of taipei main station are very famous.

As for snacks, (the snacks that can be brought back tend to be processed by dry goods) are recommended as follows:

Taipei (Taipei+New Taipei): Iron Egg+pineapple cake+Maji (it should be written in this way, all over Taipei)+Honey Crisp+Brown Sugar Crisp (all over Taipei)+Niuzha Soup+Tea (Muka).

Taoyuan: Daxi Dried Bean Curd

Hsinchu: rice noodles and persimmons.

Yilan: duck reward+beef tongue cake

Taichung: Sun Cake

Chiayi: Cube cake

Pingtung: You can try to show the processed "Wanluan trotters".

Taitung: Chishangmi+Donghe steamed stuffed bun

Hualien: Hualien potato+mutton soup (in fact, it is available all over Taiwan Province Province, and it is also sold in Iraq and the United States)+millet wine (this is also available all over Taiwan Province)

You only said you were going to Taiwan Province Province, so I won't list the outlying islands for you.