a. b. Graphical User Interface 3. Who invented the first commercial calculator? a. Konrad Zoe c. Herman Hollerith b. William Burroughs d. Blaise Pascal 4. ENIAC is an acronym for: a. Electronic Numerical Integrator and Computer b. Electronic Numbers Integrator and Computer c. Electronical Numerical Integrator and Computer d. Electronical Numbers Integrator and Computer 5. PC is an acronym for: a. Perfect Computer c. Personal Commuter b. Personal Computer d. Personal Calculator 6. The following are uses of computer, except for one: a. Business C. Educational b. Communication d. Cacha 7. This computer is the biggest in size and the most expensive one. a. Minicomputer c. Super Computer b. Mainframe d. Microcomputer 8. This computer offers less than mainframe in work and performance. a. Minicomputer c. Super Computer b. Mainframe d. Microcomputer 9. This computer is commonly used in big hospitals, airline companies be of its capability of retrieving data on a huge basis. Minicomnuter c. Super Computer​