History of Computers (Computer Science)

Ace your homework & exams now with Quizwiz!

what does GUI stand for

Graphic User Interface

inventor of vacuum tubes

Le de Forest

it's a precursor to modern computing and is used for math dividing and multiplying and computation (second)

Napier's Bones

1822 Charles Babbage known as father of computers

early calculators

whats the trend over time

faster cheaper smaller

Main Processing device of third generation

integrated circuits

Second G advantages + dis

- smaller - faster - more reliable ________________ - overheated quickly - maintenance probs

what 4 things make a computer

- storing data - processing data - input -output

how long did the Eniac take for one division

29 milliseconds

introduced the Macintosh (what year and who)

Apple 1984

created the analytical engine; was 15 ft tall

Charles Babbage

invented analytical engine

Charles Babbage

invented the computer mouse and was the actual inventor of GUI (Xerox stole it from him)

Doug Englebart

Cost $500,000 in 1946 and over $5 million today; Weighed 30 tons and took up 2400 cubic feet

Eniac

was the first general use computer

Eniac

Miniaturized transistors placed on silicon chips called semi-conductors

Integrated circuits

Users interacted through keyboards, monitors, operating systems, multiple application; ACCESSIBLE TO THE MASSES

Integrated circuits

is the idea that all the devices are connected.

Internet of things

what made Bill gates the richest man in the world.

Microsoft Doss

precursor to modern computer purpose is math and computation (third)

Schickards' calculator

inventor of micro processors

Ted Hoff

why was the UNIVAC important?

The Univac predicted the landslide of Eisenhower over Stevenson (1952) in the presidential election. ; It was a pivotal point because people now felt that the computer could actually be useful.

why was the ENIAC built?

The development of the machine was to win the World War ll. They wanted to break the Enigma code.

main processing device in the second generation (1956-63)

Transistor

the first computer to be massed produced and sold commercially

UNIVAC

Theme what drives advances in computer technology now:

communication data entertainment

Charles Babbage is known as the_____

father of computers

True or False: Eniac came before Univac

true

allowed first computers to perform digital computations.

vacuum tubes

main processing device for first generaation computers

vacuum tubes

what was purpose of third G computer

mathematics

4th generation processing device

micro processors

Thousands of integrated circuits in once chip

microprocessors

used for multipliclation and division and scientific functions (fourth)

slide rule

Advantages and disadvantages of Integrated circuits

Advantages were: smaller cheaper faster disadvantages were: IC's are very complicated

Advantages and disadvantages of first generation computers

Advantages: - It was the only electronic device. - first device to hold memory Disadvantages: - size - maintenance - heat

inventors of integrated circuits

Kilby and Noyce

Smaller cheaper more reliable less heat; HAD A SWITCH; fundamental building block of computer circuitry

Transistors

T or F: Currently no processing device has replaced the microprocessor

True

created first computer for the home rest (what year and who)

1981 IBM

advantages and disadvantages of fourth generation

advantages - smaller -cheaper - faster ------------------------- disadvantages - no artificial intelligence

whats expected to be the main processing device in the fifth generation

artificial intelligence

Theme what drives advances in computer technology up to 4th generation

math

What's the main theme/ reason for computer development

math

may be the future of medicine; Quest to build computers 1000x smaller than human hair

nanobots/ microscopic robots

is the list of instructions that tells the computer what to do.

software

inventor of transistor

William Shockley

it's a precursor to modern computing and is used for math (very first)

ABACUS


Related study sets

Ap Euro Unit 4a Key Terms and People

View Set

Ryan Keaton chapter 1 accounting ethics

View Set

Quiz 2- osmosis (definition & applications), tenacity, lipids, and carbohydrates

View Set

Intro to Psychology Module 19 - Accuracy and Inaccuracy

View Set

Health human growth and development vocab

View Set

BUAD 100 - University of Delaware

View Set