Suppose we have a cache with 1024 bytes and 16 words per block. Consider the following configurations for organizing the cache:

1. Direct mapped cache

2. 4-way set associative cache

3. 8-way set associative cache

4. Fully associative cache

In order to determine whether a given address is present in the cache, we compare its tag with the tags of one or more blocks in the cache. Find the number of comparisons required for determining a cache hit in each of the configurations.