a. No; He was "difficult," but that wasn't the reason.





 

b. No; They had spent lots of money and wanted to see it completed.





 

c. Yes; gears and levers had too much slop and caused errors in a full scale model.





 

d. No; He did not lose interest, but was frustrated due to the lack of success.





 

a. No; So did the Jacquard loom, but thatıs not a computer.





 

b. No; So are clocks and elevators, but they aren't computers.





 

c. No; It was primarily designed to do arithmetic calculations.





 

d. Yes; it design called for memory, input and output, and a processor.





 

a. No; Not intentionally, at least for Hollerith.





 

b. Yes; The tabulating machine pushed wires through the card holes, dipping them into mercury, and closing an electrical circuit.





 

c. No; Babbage's work predated Hollerith's by decades.





 

d. No; True for Hollerith, but not for Jacquard.





 

a. No; this IS an advantage.





 

b. Yes; in general they are the same or more expensive.





 

c. No; this IS an advantage.





 

d. No; this IS an advantage.





 

a. No; ABC had limited functionality.





 

b. No; This machine was never completed.





 

c. Yes; that's right.





 

d. No; ENIAC had to be rewired to get it to perform different tasks.





 

a. No; Actually, he contributed to this effort, but that's not his original contribution.





 

b. No; The idea of programs had been around since Babbage.





 

c. Yes; that's right, while Babbage envisioned programs, Von Neumann was the first to envision storing them in memory.





 

d. No; He never lived to see transistors.





 

a. No; This IS an advantage.





 

b. Yes; Either a transistor or a vacuum tube may be used to create a larger, programmable circuit.





 

c. No; This IS an advantage.





 

d. No; This IS an advantage.





 

a. No; These used vacuum tubes.





 

b. No; These used transistors.





 

c. Yes; they were used in Apple II's, and other machines of that era.





 

d. No; These used large scale integrated circuits.





 

a. No; Nope, they concentrated on "mainframes."





 

b. Yes; the Apple IIE, and, more importantly, the early Macintosh computers were among the first aimed squarely at the home and educational markets both in price and ease-of-use.





 

c. No; They focused on Workstations.





 

d. No; They were more concerned with the equipment and peripheral market.





 

a. No; Any such projections were, in hindsight, remarkably conservative.





 

b. Yes; that's right, predictions made by the literature of the time, and by most corporations engaged in the manufacture of technology were remarkably conservative.





 

c. No; Any such projections were, in hindsight, remarkably conservative.





 

d. No; Any such projections were, in hindsight, remarkably conservative.