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sineoko [7]
3 years ago
15

Which keyboard feature is a form feed character?

Computers and Technology
1 answer:
Sever21 [200]3 years ago
5 0

Answer:

B

Explanation:

The form feed character code is defined as 12 (0xC inbhexademical), and may be represented as control+L or^L. In a related use, control+L can be used to clear the screen in Unix shells such as bash. In the C programming language ( and other languages derived from C ), the form feed character is represented as '\f'.

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Compare and contrast Charles bebbage and Blaise Pascal inventions<br>​
telo118 [61]

Explanation:

A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.” Such a definition would owe its deceptiveness to a naive and narrow view of calculation as a strictly mathematical process. In fact, calculation underlies many activities that are not normally thought of as mathematical. Walking across a room, for instance, requires many complex, albeit subconscious, calculations. Computers, too, have proved capable of solving a vast array of problems, from balancing a checkbook to even—in the form of guidance systems for robots—walking across a room.

Before the true power of computing could be realized, therefore, the naive view of calculation had to be overcome. The inventors who laboured to bring the computer into the world had to learn that the thing they were inventing was not just a number cruncher, not merely a calculator. For example, they had to learn that it was not necessary to invent a new computer for every new calculation and that a computer could be designed to solve numerous problems, even problems not yet imagined when the computer was built. They also had to learn how to tell such a general problem-solving computer what problem to solve. In other words, they had to invent programming.

They had to solve all the heady problems of developing such a device, of implementing the design, of actually building the thing. The history of the solving of these problems is the history of the computer. That history is covered in this section, and links are provided to entries on many of the individuals and companies mentioned. In addition, see the articles computer science and supercomputer.

Early history

Computer precursors

The abacus

The earliest known calculating device is probably the abacus. It dates back at least to 1100 BCE and is still in use today, particularly in Asia. Now, as then, it typically consists of a rectangular frame with thin parallel rods strung with beads. Long before any systematic positional notation was adopted for the writing of numbers, the abacus assigned different units, or weights, to each rod. This scheme allowed a wide range of numbers to be represented by just a few beads and, together with the invention of zero in India, may have inspired the invention of the Hindu-Arabic number system. In any case, abacus beads can be readily manipulated to perform the common arithmetical operations—addition, subtraction, multiplication, and division—that are useful for commercial transactions and in bookkeeping.

The abacus is a digital device; that is, it represents values discretely. A bead is either in one predefined position or another, representing unambiguously, say, one or zero.

Analog calculators: from Napier’s logarithms to the slide rule

Calculating devices took a different turn when John Napier, a Scottish mathematician, published his discovery of logarithms in 1614. As any person can attest, adding two 10-digit numbers is much simpler than multiplying them together, and the transformation of a multiplication problem into an addition problem is exactly what logarithms enable. This simplification is possible because of the following logarithmic property: the logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers. By 1624, tables with 14 significant digits were available for the logarithms of numbers from 1 to 20,000, and scientists quickly adopted the new labour-saving tool for tedious astronomical calculations.

Most significant for the development of computing, the transformation of multiplication into addition greatly simplified the possibility of mechanization. Analog calculating devices based on Napier’s logarithms—representing digital values with analogous physical lengths—soon appeared. In 1620 Edmund Gunter, the English mathematician who coined the terms cosine and cotangent, built a device for performing navigational calculations: the Gunter scale, or, as navigators simply called it, the gunter. About 1632 an English clergyman and mathematician named William Oughtred built the first slide rule, drawing on Napier’s ideas. That first slide rule was circular, but Oughtred also built the first rectangular one in 1633. The analog devices of Gunter and Oughtred had various advantages and disadvantages compared with digital devices such as the abacus. What is important is that the consequences of these design decisions were being tested in the real world.

Digital calculators: from the Calculating Clock to the Arithmometer

In 1623 the German astronomer and mathematician Wilhelm Schickard built the first calculator. He described it in a letter to his friend the astronomer Johannes Kepler, and in 1624 . .

5 0
3 years ago
Find examples of conic sections in art and architecture. Visit Web sites to find pictures of artwork or buildings that illustrat
liubo4ka [24]

The question above wants to assess your interpretation of conic shapes and sections in art and architecture. For that reason, I can't write an answer for you, but I'll show you how to write it.

The conical sections can be seen in structures that assume one of the shapes considered conical. These formats are easy to identify, especially in architecture, where they are very popular. These shapes can be classified as Parabola, Circle, Ellipse, and Hyperbole

In this case, to write your answer, you should search for architectural works or works of art that present one of these types of conic sections and show how the use of this format is important for these works.

Some examples of works that use conic sections are:

  • Parabola: Eiffel Tower.
  • Circle: Farmer's Cottage Deluxe Summer House
  • Ellipse: Tycho Brahe Planetarium.
  • Hyperbole: McDonnell Planetarium

More information:

brainly.com/question/2285436

8 0
2 years ago
One of the most toxic components of a computer is the
Cloud [144]
The most common is usually lead found in the glass or some circuits in rare cases
6 0
3 years ago
A group of developers for a startup company store their source code and binary files on a shared open-source repository platform
Jet001 [13]

Answer: AWS CodeCommit

Explanation:

The AWS service that the developers can use to meet the requirements that are illustrated in the question is the AWS CodeCommit.

The AWS CodeCommit is refered to as a fully-managed source control service which can be used in the hosting of Git-based repositories which are secure.

AWS CodeCommit makes it easy for the collaboration on code for teams in a secure ecosystem. CodeCommit can securely store binaries, source code etc.

8 0
3 years ago
12. In 2009, __________ of all pedestrian fatalities were caused by impaired drivers
makvit [3.9K]
3% of pedestrian fatalities were caused by impaired drivers  
4 0
2 years ago
Read 2 more answers
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