briefly describe history of computors​

Answer:

Explanation:

Charles Babbage, an English mechanical engineer and polymath, originated the concept of a programmable computer. Considered the "father of the computer",he conceptualized and invented the first mechanical computer in the early 19th century.

Answer:

The first counting device was used by the primitive people. They used sticks, stones and bones as counting tools. As human mind and technology improved with time more computing devices were developed. Some of the popular computing devices starting with the first to recent ones are described below;

Abacus

The history of computer begins with the birth of abacus which is believed to be the first computer. It is said that Chinese invented Abacus around 4,000 years ago.

It was a wooden rack which has metal rods with beads mounted on them. The beads were moved by the abacus operator according to some rules to perform arithmetic calculations.

Napier's Bones

It was a manually-operated calculating device which was invented by John Napier (1550-1617) of Merchiston. In this calculating tool, he used 9 different ivory strips or bones marked with numbers to multiply and divide. So, the tool became known as "Napier's Bones. It was also the first machine to use the decimal point.

Pascaline

Pascaline is also known as Arithmetic Machine or Adding Machine. It was invented between 1642 and 1644 by a French mathematician-philosopher Biaise Pascal. It is believed that it was the first mechanical and automatic calculator.

Stepped Reckoner or Leibnitz wheel

It was developed by a German mathematician-philosopher Gottfried Wilhelm Leibnitz in 1673. He improved Pascal's invention to develop this machine. It was a digital mechanical calculator which was called the stepped reckoner as instead of gears it was made of fluted drums.

Difference Engine

In the early 1820s, it was designed by Charles Babbage who is known as "Father of Modern Computer". It was a mechanical computer which could perform simple calculations. It was a steam driven calculating machine designed to solve tables of numbers like logarithm tables.

Analytical Engine

This calculating machine was also developed by Charles Babbage in 1830. It was a mechanical computer that used punch-cards as input. It was capable of solving any mathematical problem and storing information as a permanent memory.

Tabulating Machine

It was invented in 1890, by Herman Hollerith, an American statistician. It was a mechanical tabulator based on punch cards. It could tabulate statistics and record or sort data or information. This machine was used in the 1890 U.S. Census. Hollerith also started the Hollerith?s Tabulating Machine Company which later became International Business Machine (IBM) in 1924.

Differential Analyzer

It was the first electronic computer introduced in the United States in 1930. It was an analog device invented by Vannevar Bush. This machine has vacuum tubes to switch electrical signals to perform calculations. It could do 25 calculations in few minutes.

Mark I

The next major changes in the history of computer began in 1937 when Howard Aiken planned to develop a machine that could perform calculations involving large numbers. In 1944, Mark I computer was built as a partnership between IBM and Harvard. It was the first programmable digital computer.

A talented student wrote a song. Another student posted a video of the song on You Tube, claiming to have written the song. this is most related to which aspect of life?

write the feature of mark-I​

a. Why are the data known as raw facts? Explain.​

______ type of form control is used when the user needs to choose online or onsite in a webpage.

a) Radio button
b)Check box
c)Submit button
d)clickable button

Differences between input device and storage device

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Primary memory is and .
~ Volatile ~ Permanent
~ Not Volatile ~ Not Permanent

plz plz plz help me with me

Please help ASAP, this is for computer science we’re suppose to make a program that takes a user input and the user’s input is suppose to be the total of a list.


This is what I’ve got so far and my teacher said I was close but I shouldn’t use User_Number in the parameter. ( the indents are in the code for some reason they didn’t carry over thou )


User_Number = input(“What should the sum of numbers be? “)

Def Total(User_Number):

i = 1

numbers = [ ]

while i <= User_Number:

numbers.append( i )

i += 1

Sum_Total = 0

For i in numbers:

Sum_Total += numbers[ i - 1 ]

return Sum_Total

if __name__ == ‘__main__’:

print( Total )


The only things that must be in the program is: user input, a def statement with a parameter, the if name = min statement, and no preexisting functions for the math

Which terms represent the two types of client requirements?

plz help me with this plz plz plz

Convert Octal 623, to Decimal number ​

Q.N.2. Write T for true statement and 'F' for the false one: with a) Monitor is called visual display unit. b) IPO is the basic principle of computer. c) Application software is designed as per user's need. d) The computer can function without software. e) We cannot insert any picture in MS-paint. f) We can resize pictures in paint it needed. g) Changing the color of text is not possible in MS-paint. ​

where are mainframe computers mainly used for​

Why is it important to prepare for a scheduled call with an instructor?
A. To make sure that you get the answers you need

B. To make sure that the instructor feels comfortable talking to you

C. To better understand what your instructor is looking for

D. Because video calls can be complicated

When someone is sad their_____can include slumped shoulders and downcast eyes

A. Nonverbal communication

B. Telephonic communication

C. Syntax

D. Speechisms

What program converts high level programming language into machine code line by linewhen the program is running

I know how to do this but I'm struggling to make it appear on the screen am I doing it right? If I am please tell me that if not please tell me and explain to me how to do it also help me to understand by explaining it to me what I'm doing wrong so that in the future I will never ever make this mistake again.

Computer not letting me go on password page

I start my computer, I go to the thing to put in my password, it takes me back to the thing with the time and date
Please explain to me what is wrong with my computer and how to fix it

Who is known as the first computer programmer?​

Activities provided for the satisfaction of others and consumed at the time of purchase
are…

what are the types of computer? list each types of computer with table​

Which is the Concatenation or joining symbol in python
Please helppp​

1. How can Josh create a computing environment where he and his coworkers can sign in with their
personalized Coho accounts on every machine and still maintain their settings easily and efficiently?
a. Josh can create an Active Directory domain by installing a server that has centralized management.
b. Josh can create Microsoft accounts and add those accounts to all of the systems he manages.
C. Josh should carry his files on a USB flash drive so he has his data wherever he goes.

what kind of information does a smartphone handle​

Match each word to it's correct meaning​

A flowchart meeting is a process where members of the team analyze the design piece-by-piece to make sure it meets requirements and works accurately.
true or false

How many are there mouse actions performed by two mouse button.
​

Evaluate how suitable the hardware would be for:
- High powered operations such as gaming and computation
- Energy efficiency for travel and productivity
- Light weight, small system for potential use in health monitoring

(PLEASE HELP, I DON’T UNDERSTAND)

give two examples of situations or applications where electrical circuits are used​

3.
Read the test again and write words which mean the following.
(a) The putting and keeping of things in a special place for use in the future

Any single letter in the alphabet (not numbers) needs to be called by a ________ variable.
a) char
b) long
c) character
d) String