[garyhope]

Probably CP/M or Fortran.

[FFranco]

A dialect of Hebrew.

[Fred Nerks]

http://www.newscientist.com/channel/being-human/dn10076-oldest-writing-in-the-new-world-discovered.html

“The link to the Olmec culture is convincing, says Mary Pohl of Florida State University, US, who was not involved in this study. Pohl had previously excavated an inscribed roller stamp of the Olmec culture, which was firmly dated to 650 BC (see Early Americans used first writing to promise loyalty).

Recently, another roller stamp has been dated to 1150 BC, pushing back the origin of the Olmec symbols. “Things are really beginning to come together; this is really an exciting time,” Pohl told New Scientist.

(further info.)

[Cementjungle]

Probably CP/M or Fortran.

It looks more like APL.