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3 years ago

Explain and Define the four types of maintenance in IT?

Computers and Technology

1 answer:

crimeas [40]3 years ago

7 0

Answer:

The four types of maintenance in IT are given as:

Preventive maintenance: It is the important part to facilitates the management system and it should be designed carefully o prevent them from failure. the main aim of preventive maintenance is to successfully establish the design to improve the system performance.

Corrective maintenance: It basically refers to the changes made to repair the defects in the implementation and designing of the system. It is usually performed after the failure occur in the equipment. It also increased overall productivity of the system.

Perfective maintenance: It basically improve the performance of the system, efficiency and maintainability. This type of maintenance are initiated by the IT department.

Adaptive maintenance: It involves the implementation changes in the system to increase its functionality. It basically improve its efficiency and increase its capability. It is less urgent than corrective maintenance.

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Write the logical Expression and Draw the Truth table for the <br> following questions

Alja [10]

The logical expressions are

(X NOR Y ) OR Z ⇒ $(\bar X \bar + \bar Y) + Z$
(A NAND B) AND NOT C ⇒ $(\bar A \bar \cdot\bar B) \cdot \bar C$

<h3>How to determine the logical expressions?</h3>

<u>Logical expression 1</u>

X and Y are linked by the NOR gate.

So, we have:

X NOR Y

The X NOR Y is linked to Z by the OR gate.

So, we have:

(X NOR Y) OR Z

Hence, the logical expression is (X NOR Y ) OR Z ⇒ $(\bar X \bar + \bar Y) + Z$

<u>Logical expression 2</u>

A and B are linked by the NAND gate.

So, we have:

A NAND B

The A NAND B is linked to C by the AND gate.

So, we have:

(A NAND B) AND C

Hence, the logical expression is (A NAND B) AND NOT C ⇒ $(\bar A \bar \cdot\bar B) \cdot \bar C$

See attachment for the truth tables

Read more about truth tables at:

brainly.com/question/27989881

#SPJ1

6 0

2 years ago

What does ' array ' mean in the context of graphics programming ?

Readme [11.4K]

Answer:

An array is a data structure that contains a group of elements. Typically these elements are all of the same data type, such as an integer or string. Arrays are commonly used in computer programs to organize data so that a related set of values can be easily sorted or searched.

3 0

3 years ago

Now, my Laptop has been working since I bought it yesterday it won’t start up and it when it does it overheats and shuts off, th

tekilochka [14]

I would bring it back since it’s not working. No way would I spend hard earned money on something that doesn’t work.

Hope this helps.

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3 years ago

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To distinguish advertising, which typically is conveyed via print, TV, radio, the Internet, etc., from person-to-person forms of

neonofarm [45]

Answer: Mediated

Explanation:

Mediated communication is the type of communication in which the information are carried out so that it can be used in various types of communication technology.

It is also known as mediated interaction and it can be used as face to face communication.

The mediated communication are typically used to distinguish the various form of communication. The mediated communication are not only computerized but also we can communication by using pen and paper.

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3 years ago

Read 2 more answers

Select the correct answer.

konstantin123 [22]

Hello!

Similar to the keyboard character keys F and J, the number 5 on the numeric keypad has a bump on it.

This is to also help position your fingers on the keypad when typing numbers.

Hope this helps!

5 0

2 years ago