The best laptop or desktop purchase is a Windows 8.1 (or bought without operative system and You install Windows 8.1 or 10 from scratch) computer 1-1½ years old which You buy used, with an AMD triple or quad core CPU (or possibly hexa core if a software You are going to use is actually able to use 4-5 cores a large part of the time
and You need to multitask) with 3-8 MB of cache in the CPU (called L2+L3 cache) or a minimum of 1.5 MB if You are OK with a standard triple core computer, with non-touch monitor (DVI-cable if it's a desktop). If it's a laptop and You are in uni or going to uni or going to use for serious office work at Your job make sure it can be connected to a projector with a VGA-cable, preferably also with a HDMI-cable.
Make sure You have at least 8 or 12 GB RAM from start (if it comes with less upgrade at once) and that it's expandable to at least 16 or 32 GB depending on how much You expect to use it and the recommended requirements of the softwares You are going to run except games, and also depending on for how long periods You are going to keep using the computer without quitting Windows or rebooting. Also if You use the Chrome web-browser and almost a hundred tabs open You need
at least 12 GB at least if You are ever going to run
any somewhat heavy softwares simultaneously.
Choose office softwares, document or ebook softwares and Bible Study softwares wisely - don't make overnight choices regarding those unless a computer which is a really great deal used for some reason comes pre-loaded with some pretty decent softwares (and content if it's a Bible Study software).
You should have good routines for using a USB thumb drive - always being quick so You have Your files where You need them (I don't believe in paying lots of money for internet connection).
Instead of buying expensive cameras You should mirror Your drives sometimes to new drives in order to prevent data-failure - i.e. before there are any errors on any drives. This is quicker to do than re-installing.
You should look out so that Your Windows profiles don't get corrupted and maintain the computer(s) well in general.
You should keep Your Windows registry healthy plus look out what loads when You boot Windows.
Never defrag SSDs:
You can build a more capable PC for much less than the equivalent Mac, and have the ability to actually do stuff to it.
Hacking a computer is usually done with malware, keyloggers and viruses, if the market share is small most won't see the effort as worthwhile - as I've understood it what operative system someone has is not the first thing hackers find out:
Thanks.....what does that mean?