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Computer and Technology Basic for Dewvelopers > Module 4 > Flashcards

Module 4 Flashcards

1
Q

What is an Algorithm?

A

A plan to solve a problem by sequencial steps.

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2
Q

What is Engineering?

A

Is the application of mathematics combined with scientific, economic, social, and pratical knowledge in order to invent, design, build, maintain, research, and improve structures, machines, tools, systems, components, materials, process, and organizations.

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3
Q

What computer and software engineering deals with?

A

The building and operation of computers and the design of programs that run on those computers.

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4
Q

What is a junior developer?

A

A developer newly trained in the area.

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5
Q

What Queue means in a computer?

A

A sequence of information or tasks that are waiting to be handled.

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6
Q

What is a Senior developer?

A

Is a master software developer and is the highest “rank” one can achieve in this area.

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7
Q

What is a Silo?

A

A system, process, department, etc that operates in isolation from others.

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8
Q

What is a Client on a network?

A

The computer that is requesting sevice from another computer.

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9
Q

What are Email clients?

A

Programs that help the user to contact special servers over the internet where emails messages are stored, and retrieves them to the user. Once you would install them on your computer, now you can use one over the internet. Outlook is a famous one.

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10
Q

What are IMAPO and POP3?

A

Email protocols.

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11
Q

What IMAP stands for?

A

Internet Message Access Protocol.

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12
Q

What POP3 stands for?

A

Post Office Protocol version 3.

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13
Q

How IMAP works?

A

Like gmail. The email messages are stored on the servers and you can acess it.

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14
Q

How POP3 works?

A

The messages are moved from the server to the user’s computer when they are open. They are deleted from the server.

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15
Q

What is a Router?

A

A machine that sends information to two or more locations. A manager of the requested informations on a network.

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16
Q

When the Router is specially important?

A

Simultaneous requests for the same exact information.

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17
Q

What is a repository?

A

A main location where data can be kept and handled. Ex: email webservice holds your emails for you to access.

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18
Q

What is social networking?

A

The use of websites and other communications methods to connect people.

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19
Q

What is a spreadsheet?

A

A type of computer program that allows you to organize, modify and analyze data.

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20
Q

Where the data is stored in a spreadsheet?

A

In containers called cells.

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21
Q

How are the cells of a spreadsheet organized?

A

Into rows and columns.

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22
Q

How a set of row and columns is called?

A

A table.

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23
Q

What is a Bus in a computer?

A

A group of wires and the ports that reside inside the computer.

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24
Q

What a Bus is used for?

A

To conect parts of the computer to each other.

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25
Q

If a Bus has 8 wires, how the message 11001010 is sent?

A

Each wire will match one digit. If it is a 1, it will have electricity. If it is a 0, it will not have electricity.

26
Q

What is a Bus network?

A

A form of network where you have several computers connected to a single main wire.

27
Q

What is the advantage of a Bus network?

A

If one of the computers fails, the bus network still works because each computer is connected to the main line.

28
Q

What are the disadvantage of the Bus network?

A
  1. Longer to transfer data if the computers are farther apart.
  2. Wait for data to stop flowing on the line before you can start another data flow.
29
Q

What is a hub?

A

A machine that relays information to the computers on a network. It doesn’t matter which computer requested the information, the hub will send it to all of the computers.

30
Q

Describe how the process of getting information from the internet through a hub works.

A

When you request resources from the internet, the hub receives the request from you pc and proceed the request on the internet. When it receives the resource back, it send the resource to all computers from the local network.

31
Q

What is a LAN?

A

A local-area network.

32
Q

What is a node?

A

Something connected to a network. If several computers are joined together, eahc computer is considered a node. A printer would be a node as well.

33
Q

What is a ring network?

A

A ring network is a type of computer network of computers and devices that are connected in a loop (ring). To pass information along the network, the information is passed in a circle until it arrives at its destination.

34
Q

What is a star network?

A

A star network is where many computers are connected to each other via a central computer or machine. This central computer or machine is called a “hub.”

35
Q

What is Wifi?

A

A technology for linking up computers or other devices in a network without the use of physical wires.

36
Q

What wifi uses to send information?

A

Radio waves.

37
Q

What is the origin of the word radio?

A

Ray, beam.

38
Q

What is the name of the device that can produce radio waves?

A

The transmmitter.

39
Q

What is the name of the device that can receive radio waves?

A

The receiver.

40
Q

What is a Wiki?

A

A wiki is a website that allows the people viewing it to add things and change the website using their browser.

41
Q

What is a profile?

A

A short description written about a person or organization.

42
Q

What is Cisco?

A

Cisco is short for Cisco Systems. Cisco is a major company that specializes in building and selling computer networking equipment.

43
Q

What is function?

A
  1. Work performed by something. A procedure the computer performs.
  2. A function is a block (chunk) of organized, reusable computer instructions that is used to perform a specific action or set of actions. It can also be called a subprogram, subroutine or a method.
44
Q

What configure means?

A

To set up a machine to be used in a particular way.

45
Q

What Media means?

A

Media refers to communication of information to large quantities of people. Radio, Internet, newspapers, music, and magazines are all considered media.

46
Q

What medium is?

A

A medium is something used to relay media. The internet is a medium.

47
Q

What social media means?

A

Social media is the content you put on social networks (posts, pictures, videos, etc.).

48
Q

What is a subscriber?

A

Someone that signs to regularly receive information from a particular source.

49
Q

What is DSL?

A

Digital Subscriber Line.
A way to transfer data over telephone lines at a high speed and is mainly used to allow computers to access the internet. It allows the connections of the internet and use of the phone at the same time.

49
Q

What is the Ethernet?

A

Is the physical connection of local computers and protocols of transfer of information.

50
Q

What is a current?

A

It is a measure of the flow of electrons through a material.

51
Q

What is a conductor?

A

A material that allows electricity flow through them.

52
Q

What is an electrical signal?

A

An electrical signal is an electric current modified by electronic devices to convey information.

53
Q

Where the word modem comes from?

A

It is short for “modulate/demodulate”. To modulate a thing means to change it. To demodulate means to reverse that change.

54
Q

What a modem does?

A

It takes a constant electrical current and change it (modulate it) so that it now carries information.

55
Q

Describe the caps on soda bottle modulation example.

A

The machine could output a continuous sound, with a constant volume, when no bottles are being capped. When the machine starts to operate and cap bottles, you could then cause that sound to spike up in volume for a split second every time a bottle was capped.
A visual representation of the modulated information would be like: __|__|__|_|____|__|__|__
_ means no capping and | means capping.

56
Q

Nowdays most of the time modems and routers…

A

… are build as one piece of hardware.

57
Q

What is a port1?

A

A physical connection on a computer to some sort of input/output device.

58
Q

What is a port 2?

A

A non-physical connection that is used to connected computers.

59
Q

Who control the communication of port1 and port2?

A

The operating system.

60
Q

In which area in the operating system program the ports 2 are maintained?

A

On the firewall.

Computer and Technology Basic for Dewvelopers (10 decks)

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