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Computer Applications > Revision > Flashcards

Revision Flashcards

1
Q

Define software

A

Refers to the instructions that tell a computer what to do

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2
Q

Software vendor

A

Is a commercial organization that acquired or develops a software and sells it to end user

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3
Q

Operating systems

A

Is a computer system that supports the basic functions of a computer

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4
Q

System Utility

A

Is a software that controls a computer and develops and runs applications.

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5
Q

Differences between general and special purpose computer

A

General purpose computer is designed to perform multiple tasks.
Special purpose is designed to perform a single task.

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6
Q

CTRL + L

A

Aligns highlighted text to the left of the screen.

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7
Q

CTRL + R

A

Aligns text to right of the screen

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8
Q

CTRL+ E

A

Aligns text to the center of the screen.

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9
Q

CTRL + B

A

Bolds the highlighted text.

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10
Q

CTRL+F

A

Opens find box

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11
Q

CTRL + K

A

Inserts hyperlink

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12
Q

SHIFT+ Alt+T

A

Insert trademark

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13
Q

CTRL + J

A

Aligns text to justify screen

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14
Q

CTRL + M

A

Idents paragraph

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15
Q

CTRL + N

A

Opens new window

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16
Q

CTRL + U

A

Underline highlighted text

17
Q

CTRL+O

A

Opens dialog box

18
Q

CTRL + D

A

Open font preferences window

19
Q

CTRL + W

A

Close window

20
Q

CTRL + Y

CTRL +Z

A

Redo

Undo

21
Q

CTRL + shift+ D

A

Double underline highlighted text

22
Q

CTRL + ]

A

Increase selected font

23
Q

CTRL+Shift+

A

Decrease selected font

24
Q

CTRL+ left arrow

Control + right arrow

A

Moves one word to the left

Moves one word to the right

25
Q

CTRL + home

CTRL + end

A

Goes to the beginning of the document

Goes to the end of the document

26
Q

F1

F7

A

Open help

Spellcheck

27
Q

Generations of comps

1st generation: year? Explain?

Disadvantages of 1st gen computers

A

1940-1956

Vacuum tubes used as circuitry and magnetic drums used as memory. -

  • Enormous
  • Used machine language which is the lowest programming language understood by a computer.

Disadvantages:They took up a lot of space.

  • They generated a lot of heat which lead to malfunctions
  • They could only do one task at a time.
  • They were expensive to operate
28
Q

2nd gen

Year and xplain

A

1956-1963
Vacuum tubes were replaced by transistors.
Transistors allowed computers to be faster and smaller.
The machine language was replaced by assembly languages which allowed programmer to specify instructions in words.

29
Q

3rd gen- year

Xplain

A

1964-1971

IC- integrational circuits were the hallmark of the 3rd gen
Transistors were miniaturized and placed on silicone chips called semi-conductors
For the first time mass audience could own a computer since it was cheaper and smaller.

30
Q

4th gen

Year? Xplain

A

1971-present

Micro-processors were introduced as a thousand ICs were placed on a single chip.
The Intel 4004 was developed and placed all the components of a computer on a one chip.
Microprocessors became more popular and people could own smaller computers.
As small computers became more powerful, it led to the development of internet.

31
Q

Fifth gen

Year? Xplain?

A

Present- beyond

The computer devices are to use artificial intelligence and r still in development yet although some have been developed such as speech recognition and so on.

32
Q

Paragraph formatting features

A 
Alignment
Idents
Line spacing 
Shading
Borders
33
Q

Functions of an operating system

A
  • Memory management
  • Device management
  • File management
  • Processor management
  • Controls system performance
  • Security
34
Q

Data types in MS word

A
  • Short text (text)
  • Long text (memo)
  • hyperlink
  • Number
  • Large number
  • Attachment
  • Auto number
  • Date/Time

Computer Applications (1 decks)

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