User

- Understand system capabilities and limitations - Make informed decisions - Improve communications with information technology professionals

Systems Analyst

- Conduct surveys, determine feasibility and define and document user requirements - Specify computer systems to meet application requirements

Sabtu, 15 November 2008

Standards

- Created to ensure universal compatibility of data formats and protocols
- May be created by committee or may become a de facto standard through popular use
- Examples : Computer languages: Java, SQL, C, JavaScript, Display standards: Postscript, MPEG-2, JPEG, GIF, Character set standards: ASCII, Unicode, EBCDIC, Video standards: VGA, XGA, RGB
Posted by at

Tidak ada komentar:

Posting Komentar

Langganan: Posting Komentar (Atom)

Early History

- 1642: Blaise Pascal invents a calculating machine - 1801: Joseph Marie Jacquard invents a loom that uses punch cards - 1800’s : Charles Babbage attempts to build an analytical engine (mechanical computer), Augusta Ada Byron develops many of the fundamental concepts of programming, George Boole invents Boolean logic. - 1937: Mark I is built (Aiken, Harvard University, IBM) : First electronic computer using relays. - 1939: ABC is built : First fully electronic digital computer. Used vacuum tubes. - 1943-46: ENIAC (Mauchly, Eckert, University of Pennsylvania) : First general purpose digital computer. - 1945: Von Neumann architecture proposed : Still the standard for present day computers. - 1947: Creation of transistor : (Bardeen, Shockley, Brattain, Bell Labs). - 1951: UNIVAC First commercially available computer. Copyright 2003 John Wiley & Sons 3rd Edition, Irv Englander John Wiley and Sons Ó2003 Wilson Wong, Bentley College Linda Senne, Bentley College