你这个句子本身有问题
首先是 how many 不是how much,因为电脑是可数名词。
do 后面少了宾语。
我根据你的句子修改了下,请看。
I wonder how many more computers will be able to do this work in the future.
I 主语
wonder 谓语
how many more computers will be able to do this work in the future. 宾语从句
computers 从句中的主句
will be able to do this work 从句中谓语部分
in the future.状语