Gold or Tin
Gold or Tin
Gold & Tin
They are either plated with tin or gold.
Gold and Tin
memory module edge connectors are typically gold plated copper printed circuit traces, the gold provides corrosion resistance while the copper underneath provides electrical connections to the memory chips mounted on the module (and is much cheaper than gold)the slots the memory modules install into are typically gold plated phosphor bronze springs, the gold provides corrosion resistance while the phosphor bronze (an alloy containing copper, zinc, tin, iron, and phosphorus) underneath provides both electrical connections and a strong springiness that plain copper (a very soft weak metal) could not, ensuring a solid physical/electrical contact with the memory module's contacts.
It depends. Obviously the more you have in the kernel the less you will have for resident memory. This may improve performance if these modules are in use, or it might just take up memory if they are not active. With dynamic loadable modules the idea was to install the module in the resident kernel if it were required at run time rather than compiling them into the kernel. This way an admin can load and unload the modules at will, assuming they know when the modules will be in use.
There is no disadvantage other than you are using up slots that you might want to use later for upgrading.
The system consists of CPU, Main Memory, I/O Module, and System Bus.
It's certainly possible - the easiest way to check - is to get hold of some spare memory modules - and install them in place of the ones they already have in their machine. If the computer runs perfectly with the replacement module - then you have your solution.
You can replace the internal harddisk with a higher capacity one and you might be able to expand the memory (if it is not already at maximum and the modules are socketed). It is unlikely there is anything else you can modify.
A regular TV won't have HDMI connectors but it might have COMPONENT connectors, these will give you a extended definition picture.
Metals, not non-metals. You might want to find a periodic table.