The assembly language is actually a strongly functional programming language, which can utilize all features of computer hardware and directly control them. As a machine language, corresponding to the high-level language compiler, assembly language also needs a assembler to compile its source code into executable machine code. As far as I know, there are at least two skills can not do anything without the basic knowledge of assembly language, they are reverse engineering (software cracking) and disk repair.

In 2010, I mistakenly chose one of partitions on my mobile hard drive when I was using Ghost backup file (GHO) to recovery the system partition (C volume), which led to a devastating partition-level of data loss. Since then, I have been sealing this entire hard disk all the time. Until 2017's first half, I finally had enough time and patience to restore most of the data inside. And among these recovered files, I accidentally discovered a very handy and practical software - 5D PDF Creator, which was published as early as 2008, and has been discontinued and gone from Internet for many years.

Google SketchUp is an extremely popular and user-friendly 3D modeling tool, which is production process of design scheme oriented, and mainly used in the architectural design and relevant fields. Its creation process not only can directly express the designer's idea, also fully meet the needs of communicating with customers in time. Applying it to game design is a relatively new field with a certain amount of challenges.

By modifying the environment variables of system or software to save a variety of commonly used temporary folders (Temp, IE Cache, Download folder, for example) to the virtual hard disk (RAM drive), we can effectively improve the file reading/writing speed and software running speed. And in fact, it can also reduce the reading/writing times of physical disk so as to prolong its service life to some extent.

There are a lot of similar software as Hide ALL IP (their working principle is just a proxy). But to be honest, they are not very useful, or even completely useless in many countries with strict Internet censorship. Because the general HTTP/HTTPS/SOCKS5 proxies, even the so-called highly anonymous ones, almost were all blocked by the powerful network firewalls of some countries, without exception.