Discuss how the use of digital formats for audio-visual recording and editing has

Why do astronomers prefer to use the reflecting telescope rather than the refracting telescope to view distant objects in space?

sdas [7]

C is the right answer

7 0

4 years ago

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What are the advantages of mine shaft gear and the disadvantaged

romanna [79]

Answer:

One sheave means that you are using a single drum winder. They are the worst! Double drum winders control easier, brake better and are much more efficient. They save time ( two skips or cages) and can be clutched to perform faster shift transport. A single drum is slow, unbalanced and can be a nightmare if it trips out during hoisting. If the brake system is not perfect it can be a real hairy experience. For a runaway single drum, there is no counterbalance effect. It always runs to destruction. With a double drum, the driver still has a chance to control the winder to a certain extent and he has two sets of brakes to rely on. A single sheave could also mean a shaft with a single compartment. No second means of escape unless there are ladders or stairways. Not a very healthy situation.

Those are just a few points. I am sure much more can be said in favor of a double drum winder and two or more sheaves in the headgear. Most of the shafts I have worked at have multiple winders and up to ten compartments. They all have a small single drum service winder for emergencies and moves of personnel during shift times. They are referred to as the Mary - Annes. Apparently, the name originated in the U.K. where an aristocratic mine owner named the first such winder after his mistress.

Explanation:

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5 0

3 years ago

Scale-based classification for networks allows us to differentiate PANs, LANs, MANs, and WANs. Moreover, the structure of a netw

Nana76 [90]

Answer:

1. PANs uses Star Topology.

2. LAN uses four topology (Bus, Ring, Star and Tree).

3. MAN uses Star Topology.

4. WAN uses Bus topology.

Explanation:

1. PAN is the personnel area network, in which different personnel devices of a person are connect to each other with the help of the central computer with the help of Bluetooth, WiFi or some other medium. The central computer will work like a hub and all the devices are directly connected to the central PC. It is same as the ring topology where all the devices are connected to the central PC. So we can say that, PANs use star topology.

2. LAN is the local area network that has been established with in the premises of the organization. In this type of network, four typologies involve to complete the network connection. First is star topology, that is used to connect all the devices with the switches. Then Bus topology is used to connect all the switches with the single main cable. Ring topology is involved to connect all the switches with each other. Tree topology is used to connect different block if the organization in the form of branch to connect the central router or switch.

3. MAN is the Metropolitan Area Network which is comprise of different LANs. All the LANs are connected to the Router in the form of Star topology.

4. WAN is the wide area network. In WAN different MANs are connected to the network through single cable. This type of network uses Bus topology.

6 0

3 years ago

What are the six primary roles that information system play in organizations? How are information system used in each context

Nina [5.8K]

The primary roles that information system play in organizations are:

Decision making
Operational management
Customer interaction
Collaboration on teams
Strategic initiatives
Individual productivity

<h3>How are information system used in each context</h3>

The six main functions of information systems in an organization are as follows:

1. Operational management entails the creation, maintenance, and enhancement of the systems and procedures utilized by businesses to provide goods and services.

2. Customer relationship management: Maintaining positive and fruitful relationships with customers, clients, students, patients, taxpayers, and anyone who come to the business to purchase goods or services is essential for success. Effective customer relationships contribute to the success of the business.

3. Making decisions: Managers make decisions based on their judgment. Business intelligence is the information management system used to make choices using data from sources other than an organization's information systems.

4. Collaboration and teamwork: These two skills complement the new information systems that allow people to operate from anywhere at a certain moment. Regardless of their position or location, individuals can participate in online meetings and share documents and applications.

5. Developing a competitive edge: A firm can establish a competitive advantage by outperforming its rival company and utilizing information systems in development and implementation.

6. Increasing productivity of objection: Smart phone applications that mix voice calls with online surfing, contact databases, music, email, and games with software for minimizing repetitive tasks are tools that can help people increase productivity.

Learn more about information system from
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4 0

1 year ago

In the context of an expert system, a _____ works with the knowledge base management system to ensure that the knowledge base is

defon

Answer:

Knowledge Acquisition Facility.

Explanation:

The power and effectiveness of the Expert System is equal to the quality of the knowledge it contains. The knowledge has to deal with high complexity and apply the best judgement. collection of expert knowledge is very important and involves the collecting information about a field usually from an expert. This information is stored in a computer program stored as a knowledge base.

Knowledge is always updating so it also very important to keep it up to date and it is done by Knowledge Acquisition Facility.

3 0

3 years ago