A single blank space. The ASCII code is hex 20 (x20), and the EBCDIC code is hex 40 (x40). See hex chart, EBCDIC chart and white space.
"space character." YourDictionary, n.d. Web. 07 June 2018. <http://www.yourdictionary.com/space-character>.
space character. (n.d.). Retrieved June 07th, 2018, from http://www.yourdictionary.com/space-character