Zetta- Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning "seven". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, "hepta", was informally introduced a few years before the promulgation of zetta. It was formed from the Greek (), also meaning "seven". "Hepta" never received official sanction and is obsolete. Zeta (), although
Basildon Peta Lesotho. He grew up in Chitungwiza, which is commonly referred to as "Chi Town." Peta is married and the father of two children. As a result of reporting in Zimbabwe's "Daily Gazette" about tax evasion by Zimbabwe bureaucrats, Basildon Peta was held for 7 days in 1994 by authorities under the Official Secrets Act. For his refusal to give up his principles, modify his reporting or reveal his sources, Peta at 24 years old was awarded the second Press Freedom Award by the Media Institute of Southern Africa. He also has worked for the "Zimbabwe Independent". Peta was the Secretary