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3 years ago

1. What is the difference between a learner’s license and an operator’s license?

1 answer:

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The learner's license requires someone with an operator's license to "supervise" until they pass the driver's test. The operator's license means that the driver is has already passed the driver's test.

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Jennifer stays fit by playing games that track the movement of her body. Which platform features such a physical interface featu

Usimov [2.4K]

Answer:

kinect xbox 360.

Explanation:

for example- just dance

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3 years ago

How computer can affect the life of people?

SCORPION-xisa [38]

<h2>Answer These are the negative effects</h2><h2>Low grades In school: others use the computer not for studying but something else. Which makes them unfocused in school.</h2><h2 /><h2>Waist and wrist pains: Due to long sitting ppl experience pains all over the body. </h2>

<h2>Addiction: People get addicted to the computer and makes them forget they have something important doing.</h2>

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3 years ago

_____ is a problem-solving technique where each problem in a database is stored with a description and keywords that identify it

babymother [125]

Answer:

Case-based reasoning.

Explanation:

A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.

A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.

In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.

This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.

Basically, when a database management system (DBMS) receives data update requests from application programs, it simply instructs the operating system installed on a server to provide the requested data or informations.

Case-based reasoning is a problem-solving technique where each problem in a database is stored with a description and keywords that identify it. It is typically based on cognitive science and artificial intelligence.

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3 years ago

Write a python application that allows a user to enter any number of student test scores until the user enters 999. If the score

Kryger [21]

Answer:

This program is as follows

<em>total = 0; count = 0</em>

<em>testscore = int(input("Score: "))</em>

<em>while testscore != 999:</em>

<em> if testscore < 0 or testscore > 100:</em>

<em> print("Out of range")</em>

<em> total+=testscore</em>

<em> count+=1</em>

<em> testscore= int(input("Score: "))</em>

<em>print(count,"scores entered")</em>

<em>print("Arithmetic Average:",total/count)</em>

Explanation:

This initializes total and count to 0

total = 0; count = 0

This gets input for score

testscore = int(input("Score: "))

The following iteration stop when 999 is entered

while testscore != 999:

This prints out of range for scores outside 0 - 100

if testscore < 0 or testscore > 100:

<em> print("Out of range")</em>

Otherwise

else:

The total score is calculated

total+=testscore

The number of score is calculated

count+=1

Get another input

testscore = int(input("Score: "))

The number of score is printed

print(count,"scores entered")

The average of score is printed

print("Arithmetic Average:",total/count)

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3 years ago

A computer essentially takes input, processes it, and produces output. Which person developed a machine in the mid-1880s that ac

MakcuM [25]

Answer:

The answer to this question is given below in the explanation section. the correct answer is Herman Hollerith.

Explanation:

Charles Babbage (incorrect)

Charles Babbage considers the father of the digital computer. He was a mathematician, philosopher, inventor, and mechanical engineer, Babbage originated the concept of a digital programmable computer. But he died on 18 1, 1871. so, this option is not correct.

John William Mauchly (Incorrect)

John William Mauchly was an American physicist who, along with J. Presper Eckert, designed ENIAC, the first general purpose electronic digital computer, as well as EDVAC, BINAC and UNIVAC I, the first commercial computer made in the United States. But John William Mauchy born on August 30, 1907 and died on January 8, 1980. So, this option is not correct.

Sir John Ambrose Fleming (Incorrect)

Sir John Ambrose Fleming was an English electrical engineer and physicist who invented the first thermionic valve or vacuum tube, designed the radio transmitter with which the first transatlantic radio transmission was made, and also established the right-hand rule used in physics.

Herman Hollerith (correct)

Herman Hollerith was an American businessman, inventor, and statistician who developed an electromechanical tabulating machine for punched cards to assist in summarizing information and, later, in accounting. This machine is patented in 1884.

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3 years ago