1. IF Prolog is an advanced ISO Prolog engineering tool for use in industrial and commercial environments.

2. The new IF/Prolog V5.3 for Windows now contains a superb Java-Interface.

3. Backtracking is a procedure, in which prolog searches the truth value of different predicates by checking whether they are correct or not

4. Some project management software companies, such as Procore, Prolog and HeadsUp, also offer feature-rich Bidding applications that can be purchased on a standalone basis.

5. This Prolog machine is also known as the Warren Abstract Machine (or WAM). Byte-code compilers for Java, Python (and many more) are also a subtype of this.

6. Some programming languages map very closely to the machine language, such as assembler (low level languages); at the other end, languages like Prolog are based on abstract principles far removed from the details of the machine's actual operation (high level languages).