Their explanation of technical skills is
Technical skills and competences refer to mastery of specific kinds of equipment, machinery, etc. other than computers, or to technical skills and competences in a specialised field (manufacturing industry, health, banking, etc.).
with the examples
Good command of quality control processes (I was responsible for the implementation of quality audit in my dept)
By technical skills, they mean specific skills related to a particular field job. These are skills you would acquire/improve by working in that field or job, but may not find in other jobs/industries. The reason they say "other than computer" is that they have a section for "computer skills" which is applicable to a very wide audience, not just developers. They describe it as
Computer skills and competences refer to word processing and other applications, database searching, acquaintance with Internet, advanced skills (programming etc.).
with the examples
- Good command of Microsoft Office™ tools (Word™, Excel™ and PowerPoint™);
- Basic knowledge of graphic design applications (Adobe Illustrator™, PhotoShop™).
The computer skills section is for your skills using a computer that would aid you in doing your job, but wouldn't be directly related to doing your job.
Listing your development skills (languages and frameworks you've had experience with, platforms you've developed on, software engineering practices you've used) is completely appropriate for the "Technical skills" section, since those are the skills specific to the job you are seeking.
The "Computer skills" section is where you would list your skills with a computer not directly related to performing your job as a developer (e-mail, word processing, etc) that would be useful in a general work environment.
As far as social skills, their explanation is
Social skills and competences refer to living and working with other people, in positions where communication is important and situations where teamwork is essential (for example culture and sports), in multicultural environments, etc.
with the examples
- Team spirit;
- Good ability to adapt to multicultural environments, gained through my work experience abroad;
- Good communication skills gained through my experience as sales manager.
This is where you would describe your ability to work as a member of a team, to follow instructions, and/or to lead a group. Employers will want to know that you can play nice with others in the workplace. Try to translate your non-working social skills into something relevant to the workplace. Friendly socializing off-hours or during breaks can fall into team-building (or a similar category).