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.