Fortis.
"1. SSD's are not designed to withstand more physical force, but rather their Read/Write speed is significantly higher than the normal Hard Drive."
They're not designed to withstand more, but they do because there's no physical disk in them that can smash or scratch.
"2. RAM (Random Access Memory) is most commonly DDR4, and most computers use DDR4 now, however some older systems do run DDR2, DDR3."
DDR4 is the modern standard but the majority of computers in existence are still DDR3, making DDR3 the most common, unless we're talking new computers only.
"the i7-7700k from Intel is the best CPU for 4-Core perfomance"
Going to assume you said this based on benchmarks and not your opinion, which if you did is still wrong. There is no real 'best' it all depends on different people's usage.
"Hard Drives are universal, they only require a SATA cable"
There are IDE and SCSI as well, IDE is fairly old but SCSI is still used a lot in server hardware.
"most CPU's today have integrated graphics"
CPUs with integrated graphics are also commonly known as APUs.
"Mac uses OSx and Snow Leopard was a variant of OSx, OSx constantly updates with different variants with the most current being Mojave."
Apple changed from 'Mac OSX' to 'MacOS' in 2016 with the release of MacOS Sierra.
"when you first build a PC or boot it up, you don't have your GPU outputting graphics, it is your built in graphics by your CPU"
This isn't true. Assuming your CPU has inbuilt graphics and the display cable is in the motherboard rather than the graphics card, then this is true, otherwise, the GPU does in fact output graphics however with none of it's fancy features. If you don't have inbuilt graphics or a graphics card you'll get no display at all.
"A byte is 8 bits. 1 kilobyte (kB) = 1024 bytes, 1 megabyte (MB) = 1024 kilobytes, etc... its not just 1000 (I know, its my OCD kicking in)."
kibibyte = 1024 bytes, mebibyte = 1024 kibibytes. He was correct in saying 1 megabyte is in fact just 1000 kilobytes.