A thermistor is a simple temperature component, basically it is a variable resistor that the resistance changes in it depending on the temperature. Such a simple device needs a few more components and scaling in the microcontroller to give the desired C or F temperature reading.
Making Cat5 Ethernet cables or repairing the ends is quite easy.
You will need a RJ45 connector, a crimper, and some strippers or a knife to strip the shield.
Read moreHow to terminate RJ45 connectors on Cat5 Ethernet cable
Installing a fresh copy of Windows 7 on a computer is fairly easy, here I show the steps. If you want to upgrade your computer from windows XP or upgrade from a 32 bit to 64 bit you will need to do the fresh install just as this video shows.