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d1i1m1o1n [39]
3 years ago
13

List and explain three computing devices from the 20th century​

Computers and Technology
2 answers:
kotykmax [81]3 years ago
8 0

Answer:

Calculating Machine

Graphic tablet.

Touchscreen

Explanation:

Hope this helps.

Brain-List?

vivado [14]3 years ago
7 0

Answer:

1. The First Calculating Machine (Pascaline)

2. Jacquard's Loom

3. The First Pocket Calculator

Explanation:

1. Pascaline was the first calculator or adding machine to be produced in any quantity and actually used. It was deigned at about 1642-1644.

2. Jacquard Loom is an attachment for powered fabric looms

3. The first truly pocket-sized electronic calculator was the Busicom LE-120A "HANDY" It was marketed in 1971.

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Write a SQL statement to display the WarehouseID, the sum of Quantity On Order, and the sum of QuantityOnHand, grouped by Wareho
mariarad [96]

Answer:

The corrected question is:

Write an SQL statement to display the WarehouseID, the sum of QuantityOnOrder and sum of QuantityOnHand, grouped by WarehouseID and QuantityOnOrder. Name the sum of QuantityOnOrder as TotalItemsOnOrder and the sum of QuantityOnHand as TotalItemsOnHand. Use only the INVENTORY table in your SQL statement.

Answer to this corrected question:

SELECT WarehouseID,

SUM(QuantityOnOrder) AS TotalItemsOnOrder,

SUM(QuantityOnHand) AS TotalItemsOnHand

FROM INVENTORY

GROUP BY WarehouseID, QuantityOnOrder;

According to the given question:

SELECT WarehouseID,

SUM(QuantityOnOrder) + SUM(QuantityOnHand) AS TotalItemsOnHand    

FROM INVENTORY

GROUP BY WarehouseID, QuantityOnOrder;

Explanation:

  • In the SQL statement SELECT statement is used to select the data from the table. Here the SELECT statement is used to select WarehouseID, Sum of the columns QuantityOnOrder and QuantityOnHand from INVENTORY table.
  • The sum of QuantityOnOrder and QuantityOnHand columns are given the name of TotalItemsonHand (In case of the corrected question the sum of column QuantityOnOrder is named as TotalItemsOnOrder and the column QuantityOnHand is named as TotalItemsOnHand ) using Alias AS. Alias is the temporary name given to the columns or table to make them  more readable.
  • GROUP BY statement is used to arrange or "group" same data and is often use with aggregate functions like SUM function here. So the grouping here is done based on two columns WarehouseID and QuantityOnOrder.
  • SUM function in this SQL statement is an aggregate function to calculate the sum of all value in the columns QuantityOnOrder and QuantityOnHand.
3 0
3 years ago
What is the different between the simple statement and compound statement ?​
OverLord2011 [107]

Answer:

Following is the difference between Simple and Compound statement; Simple statement (sentence) is one which has only one subject and one predicate. A Compound statement (sentence) is one which has two or more independent clauses consisting of their own subject and predicate.

Explanation:

hope it helps you

Mark as brainliest.

And follow for a follow back

4 0
3 years ago
Which facet of the 4e framework is best addressed by thought-sharing sites?
iris [78.8K]

Educate is the facet of the 4E framework is best addressed by thought-sharing sites.

Therefore, the correct answer is Educate.

4 0
3 years ago
Which of these converts analog audio signals into digital codes in a computer?
DaniilM [7]
It would either be A. Audio card or D. Sound card but most likely A
6 0
3 years ago
Read 2 more answers
What does PRAM stand for?
Nana76 [90]
<span>PRAM- Phase-Change Random Access Memory</span>
7 0
3 years ago
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