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).
A drug that is used to treat infection. It belongs to the family of drugs called antibiotics. Definition (MSH). A group of antibiotics that contain 6-aminopenicillanic acid with a side chain attached to the 6-amino group. The penicillin nucleus is the chief structural requirement for biological activity.The side-chain structure determines many of the antibacterial and pharmacological characteristics.efinition (MSH). A group of antibiotics that contain 6-aminopenicillanic acid with a side chain attached to the 6-amino group. The penicillin nucleus is the chief structural requirement for biological activity. The side-chain structure determines many of the antibacterial and pharmacological characteristics.