Assume you have a computer that contains 1 GB of memory. It contains four memory slots. Each slot can contain 128 MB, 256 MB, 512MB, 1 GB, or 2GB memory modules. Two of the slots contain 512 MB memory modules. What memory chips would you buy to increase the memory on the computer to a 4GB? What is the maximum memory on the computer?

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Assume you have a computer that contain 1 GB of memory. Its contain four memory slots. Each slot can contain 128 MB, 256 MB, 512 MB, 1 GB, or 2 GB memory modules. Two of the slots contain 512 MB memory modules. What memory chip(s) would you buy to increase the memory on the computer to 4 GB ?

To increase the memory on the computer to 4GB, we need to find two memory chips that, when added to the existing memory, will bring the total to 4GB.

We currently have two slots filled with 512 MB memory modules, which total to 1GB. So we need to add 3GB more memory to reach 4GB.

Since each slot can contain memory modules of various sizes, we need to find two memory modules that add up to 3GB (or 3072MB) in total. We can consider a combination of memory modules with different sizes.

Let's list the possible memory modules that can be used to achieve this:

- 128 MB (0.125 GB)
- 256 MB (0.25 GB)
- 512 MB (0.5 GB)
- 1 GB
- 2 GB

To add up to 3GB, we can choose one module with 2GB (or 2048MB) and another module with 1GB (or 1024MB). This combination gives us a total of 3GB, and when added to the existing 1GB, it will result in 4GB of memory.

Therefore, we should buy a 2GB memory module and a 1GB memory module to increase the memory on the computer to 4GB.

The maximum memory that this computer can support is determined by the total capacity of all four memory slots combined. Let's calculate the maximum memory:

Total capacity of four memory slots:
128 MB + 256 MB + 512 MB + 1 GB + 2 GB = 3.8925 GB

So, the maximum memory supported by this computer is approximately 3.8925 GB. However, since the available memory modules have capacities in increments of 128 MB, the actual maximum memory that can be installed will be slightly less than 3.8925 GB.