According to authors Jeanne W. Ross and David F. Feeny in their 1999 study, The Evolving Role of the CIO, first-generation IT leaders were typically senior or middle managers in what businesses called the electronic data processing department or, later, the information systems (IS) department.
Penicillin (PCN or pen) is a group of antibiotics which include penicillin G (intravenous use), penicillin V (oral use), procaine penicillin, and benzathine penicillin (intramuscular use).They are derived from Penicillium fungi.enicillin (PCN or pen) is a group of antibiotics which include penicillin G (intravenous use), penicillin V (oral use), procaine penicillin, and benzathine penicillin (intramuscular use).
  Without fully explaining how the penicillin antibitic works: yes, archaea are resistant to penicillin. This is because they don't have peptidoglycan in their cell wall. â¦ Penicillin works by lowering the newly formed peptidoglycan in multiplying bacteria.It also does other things.The reason it works (this is natural penicillin G) only on Gr+ is because the can't get through the GR-cell wall.his is because they don't have peptidoglycan in their cell wall. â¦ Penicillin works by lowering the newly formed peptidoglycan in multiplying bacteria. It also does other things.