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schepotkina [342]
3 years ago
13

Leonardo is having difficulty accessing the course website. he should contact the for assistance. (points:1)

Computers and Technology
1 answer:
Alona [7]3 years ago
3 0
He should contact the teacher for assistance
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What are the three main purposes of an operating system? Explain how the old mainframe computers were different from the compute
lbvjy [14]

Answer:(1) To manage the computer's resources, which includes central processing unit, memory, disk drives, and printers, (2) To establish a user interface

(3)To execute and provide services for applications software.

The old mainframe computers have

(1) low memory sizes

(2) slower connectivity speed

(3) Larger sizer

(4) low sophistication.

Explanation: Operating system is a system software that manages the computer resources,helps to establish user interface and it helps to provide services for application softwares.

Operating system software includes WINDOWS X,WINDOWS 7,WINDOWS 8,LINUX,etc.

Mainframe computers are computers used by large multinational companies for processing bulk data. Old mainframe computers were produced by IBM(INTERNATIONAL BUSINESS MACHINE) in the year 1952 they are classed two scientific and commercial mainframe computers with different information although they had some incompatibilities. Old mainframe computers are large in size with low processing speed, sophistication and storage compared to present day system.

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3 years ago
Which girl is he baddest 1. Shawty 2.Lisa 3.Ashley
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Answer:

. . . . . . . S H A W T Y.. . .. . .

3 0
3 years ago
9.A major step before taking print of the document is (3 points)
olya-2409 [2.1K]

Answer:

Uhyuuuuufuddirueueurururururru

8 0
2 years ago
Identify the operation which is NOT one of the parts of the fivebasic set operations in relational algebra?
wariber [46]

Answer:

Join

Explanation:

Five basic set operators in relational algebra are as follows:

  • Selection - tuple selection
  • Projection - extract columns
  • Cartesian product - cross product of relations
  • Set union - union of two relations
  • Set difference - minus operation on two relations

As we can see, Join is not part of the basic set operations but it is implemented using the Cartesian Product operator.

5 0
3 years ago
In a __________, you are trying to find what others have prepared. With __________, you are trying to discover new patterns that
AveGali [126]

Answer:

<u>query,</u> <u>data mining </u>

Explanation:

A query can be explained as another term for question.

If one needs additional information from some other person, he might have ask to him. Queries are used for the retrieval of the information.

In other words, one tries to find what have been prepared by others.

Data mining can be explained as the process that allows to sort through a large set of data for the identification of patterns.

In this process of data mining, one tries to find out the new patterns that may not be known at all.

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