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Computer and Technology Basic for Dewvelopers > Module 7 > Flashcards

Module 7 Flashcards

1
Q

What is BitTorrent?

A

A peer-to-peer protocol for sharing files over the internet.

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2
Q

What is a Tracker in the Bit-torrent operation?

A
  • all computers, identification.
    A machine that keeps track of all the computers that are involved in the operation. The tracker lets computers know who they can connect up to and share information with.
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3
Q

What is fragmentation?

A
  • break, file, multiple locations
    Is the braking up of files into multiple storage locations.
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4
Q

What is inconvinient consequence of fragmentation?

A

Slower access to the file.

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5
Q

What is Defragment?

A

*reformat
Reformat the data on a digital storage device so that the individual electronic files are not broken up and stored in multiple locations.

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6
Q

What is the factors of a number?

A

The numbers of a multiplication.
Ex: 4x 5 = 20. 4 and 5 are factors of 20 and 20 is multiple of 4 and 5.

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7
Q

What is a superscript?

A

Characters typically displayed toward the upper right of another number.
Ex: int 5 to the power 2, the symbol of the poer two would be called a superscript by being at the top right of the number five.

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8
Q

How much is Gigabyte?

A

Giga = one billion.
1 Gigabyte = 2 to the thirtieth power = 1,073,741,824.
1 Gigabyte = 1024 megabyte.

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9
Q

What is definition?

A

The same as resolution: how clear the image is / pixel over area.

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10
Q

What resolutions the pixels are counted from bottom up on the screen?

A

144
240
360
480
720
1080

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11
Q

What resolutions the pixels are counted from left to right on the screen?

A

4k and 8k.

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12
Q

Which are the low resolutions?

A

144
240
360

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13
Q

Which are the standard resolution?

A

Only 480

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14
Q

Which are the high definition?

A

720 and 1080.

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15
Q

Which are ultra hd (UHD)?

A

4k and 8k.

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16
Q

What the “p” means in 1080p?

A

Progressive scanning.
Each pixel line of an image is displayed one at a time, in sequence.

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17
Q

What the “i” 720i stands for?

A

Interlaced scanning.
Each odd pixel line is displayed then each even pixel line is displayed.

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18
Q

What is an specification?

A
  • standard
    A standarzied method of construction and operation.
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19
Q

What is HDMI?

A

Hig definition multimedia interface.
A specification for equipment used in transferring high definition audio and video signals.

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20
Q

What is VGA?

A

Video Graphic Array.
Connects a video source to a display device.

21
Q

Wha is DVI?

A

Digital Video Interface.
Connects a video source to a display device. Better than VGA.

22
Q

What Augment means?

A

To make something better, bigger, expanded or increased.

23
Q

What is GPS?

A

Global Positioning System.
a satellite-based system which can tell you exactly where you are in the world anywhere in the world. Can be obstructed.

24
Q

What is RSS?

A

Rich Site Summary or Really Simple Syndication.

Is a tool that allows summary of contents to automatically be sent to you so you don’t have to go to several different places to get the information you want.

RSS requires use of a specialized program called an “aggregator.”

You can then subscribe to all different kinds of information and have everything automatically clusterd together in a place.

25
Q

What is a feed?

A

Like a news feed, is a constant or intermittent flow of individual information.

26
Q

What is google reader?

A

A discontinued aggregator service.

27
Q

What is streaming?

A

Streaming is a method of sending sequencial information that is broken up into parts. The parts are used as they arrive. The data will not persist on the computer of the recceiver.

It Is also understood as a service.

28
Q

What is the difference between whole numbers and integers?

A

Integers can be negative.

29
Q

What is place value?

A

The value of a digit based of its place in the numeal.
Ex: 1329 has four place values.
1 is in the thousands.
3 is in the hundreds.
2 is in the tens.
9 is in the ones.

30
Q

What is default?

A

A value or actions that the computer assumes is the correct one. Usually the most common one.

31
Q

What mapping means?

A

Lay it all out in detail.

32
Q

What is BMP?

A

Bitmap.

A data format for images.

33
Q

What is a flag?

A

The trigger of a condition.

34
Q

What is graphics?

A

Still o moving images displayed on a computer.

35
Q

What is source code?

A

The source that the compiler uses to create the program.

36
Q

What is open-source?

A

Source code that is an open to the public.

37
Q

What is a compiller?

A

A program that convert source code to machine language. It converts the whole source code to machine language before the program is executed. (some programs converts and execute each instruction at a time).

38
Q

What is runtime?

A

The time when the program is running. There are things that happens in runtime and compile time.

39
Q

What is runtime library?

A

Sometimes just called runtime, it is the things that are continuously executed in the background while your program is running. Thing like the operations of the OS that your program may need. I/O operations as an example.

40
Q

What is leading zero?

A

All the zeros you can add to the left of a number system without changing it.
Ex: 1010 is the same amount as 00001010.

41
Q

What are the 5 characteristics that computer algorithms are composed of?

A
  1. Generates a Result
  2. Finite amount of time.
  3. Well-ordered.
  4. Effectively computable operations. (can’t multiply green by red).
  5. Unambiguous.
42
Q

What is the more complex definition of an algorithm?

A

A well-ordered collection of unambiguous and effectively computable operations that, when executed, produces a result and halts in a finite amount of time.

43
Q

What is a sorting algorithm?

A

Algorithms that organize data, put them in some sequence or order.

44
Q

What is algebra?

A

A type of math that uses letters and other symbols to represent numbers and amounts.

45
Q

What is a branch?

A

A instruction to be executed based on the evaluation of the conditional statement.

46
Q

What is an increment?

A

To add to a number by a set amount.

47
Q

What Initialize means?

A

Prepare something to start.

48
Q

What is an Instruction?

A

Something the computer is told to do.

49
Q

What is a loop?

A

Something that connects back to the beginning point.

Computer and Technology Basic for Dewvelopers (10 decks)

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