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ira [324]
3 years ago
5

Eniac was the first desktop computer. t/f

Computers and Technology
1 answer:
LekaFEV [45]3 years ago
6 0

Answer:

The answer is "False".

Explanation:

ENIAC stands for Electronic Numerical Integrator and Computer, It was first developed in 1946. This computer use circuits and node that are interconnected with each other to show the result.

  • ENIAC was a firstly, Reconfigurable vacuum tube, that controls the unit and it doesn't store information
  • It takes a large room to set up the system, that's why it is not true.

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Which of the following was the name of the first generation of cell phone networks?
coldgirl [10]

Answer:

1G

Explanation:

1 'G' as in first generation.

Hope this helped. :)

3 0
3 years ago
Write a Python function that join the two string and print it ​
liubo4ka [24]

Answer:

string1 = "this is string 1"

string2 = " this is string 2"

print(string1 + string2)

Explanation:

the string1 variable is assigned with a string value(aka. str)

string2 is also a variable assigned with a slightly different string value

the 3rd line then prints string 1 and 2 to the console.

5 0
3 years ago
Read 2 more answers
HELP<br> When differentiating data, the WHAT of the data is:
Anna007 [38]

Answer:

a source and a target.

Explanation:

In computer science and information theory, data differencing or differential compression is producing a technical description of the difference between two sets of data – a source and a target.

7 0
2 years ago
Two machines can finish a job in StartFraction 20 Over 9 EndFraction hours. Working​ alone, one machine would take one hour long
Alborosie

<em><u>Answer</u></em>

5 hours

<em><u>Explanation</u></em>

The two working together can finish a job in

\frac{20}{9}  \: hours

Also, working alone, one machine would take one hour longer than the other to complete the same job.

Let the slower machine working alone take x hours. Then the faster machine takes x-1 hours to complete the same task working alone.

Their combined rate in terms of x is

\frac{1}{x}    +  \frac{1}{x - 1}

This should be equal to 20/9 hours.

\frac{1}{x}  +  \frac{1}{x - 1}  =  \frac{9}{20}

Multiply through by;

20x(x - 1) \times \frac{1}{x}  +20x(x - 1) \times   \frac{1}{x - 1}  =  20x(x - 1) \times \frac{9}{0}

20(x - 1)  +20x = 9x(x - 1)

20x - 20+20x = 9{x}^{2}  - 9x

9{x}^{2}  - 9x - 20x - 20x + 20= 0

9{x}^{2}  - 49x  + 20= 0

Factor to get:

(9x - 4)(x - 5) = 0

x =  \frac{4}{9}  \: or \: x = 5

It is not feasible for the slower machine to complete the work alone in 4/9 hours if the two will finish in 20/9 hours.

Therefore the slower finish in 5 hours.

8 0
3 years ago
Do the following SQL questions. The resulting columns must all have descriptive names. You must show the result of the query. Fo
Maslowich

Answer:

We can use CREATE command to create tables with columns having descriptive names

Explanation:

Firstly, create a table using CREATE  command in SQL. The syntax is as follows:

CREATE TABLE [table_name]

(

 [col_name] [datatype]),

[col_name] [datatype]),

[col_name] [datatype]),

[col_name] [datatype])

)

Once the table is created, we can insert the data into table using INSERT command. It's syntax is as follows:

INSERT INTO table_name VALUES('', '', '')

if datatype is string, values must be entered within single quotes. If datatype is int, values are entered directly without using  quotes.

Now, you can select the data from  the table using SELECT command. It's syntax is as follows:

SELECT column-list FROM table_name

If you want to filter rows according to conditions, you can use WHERE command.

I have created  sample table and inserted some data into it. Now, I applied some queries on it to select data from the table.

I have written in a text file and attached the same. Please find. Thank you!

Download txt
3 0
3 years ago
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