Technical Schools- a general term used for two-year college which provide mostly employment-preparation skills for trained labor, such as welding, culinary arts and office management.
Technical school is also the term used in the United States Armed Forces for the job specific training given immediately after recruit training. The training is much more concise, eschewing any coursework outside the minimum necessary to begin working in the chosen career field; additionally, the training is more time intensive, often including more than 9 in-class hours per day. Military technical school is typically 1 to 3 months in duration, though some schools are as short as 2 weeks or as long as 2 years.
2 Year College- Community colleges, sometimes called junior colleges, technical colleges, two-year colleges, or city colleges, are primarily two-year public institutions providing higher education and lower-level tertiary education, granting certificates, diplomas, and associate's degrees. Many also offer continuing and adult education.
4 Year College- A university is an institution of higher education and research which grants academic degrees in a variety of subjects and provides both undergraduate education and post graduate education.