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Computer Literacy > What is a Computer? > Flashcards

What is a Computer? Flashcards

1
Q

What is a computer?

A

A machine or device that receives data , processes information and outputs results of assigned tasks

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2
Q

What can a computer do?

A
  • store large amounts of data
  • carry out many different tasks
  • work for a long period of time
  • with stable quality
  • with height speed & accuracy
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3
Q

Desktop Computer definition

A
  • used in our daily life
  • usually at home or office
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4
Q

Laptop computer definition

A
  • all-in-one computer
  • widely used in the education sector / business sector / personal entertainment
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5
Q

Tablet definition

A
  • portable
  • w touchscreen
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6
Q

Smartphone definition

A
  • mobile device
  • w touchscreen / internet access / operating system
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7
Q

POS ? Definition

A
  1. Point-of-sale terminal
    • includes a screen / barcode scanner / printer / card reader / keyboard
    • used in stores to process card payment
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8
Q

ATM ? Definition

A
  1. Automated teller machine
    • provides different bank services
    • cash withdrawal / bill payment / money transfer
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9
Q

1936 ?

A
  • Alan Turing-> Turing machine
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10
Q

1953 ?

A
  • IBM 701 -> 1st commercial scientific computer
  • used to aid the United Nations in Korean War
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11
Q

1958?

A
  • Jack Kilby -> introduced ‘ integrated circuit ‘ (computer chip )
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12
Q

1971?

A
  • Intel introduced the 1st microprocessor
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13
Q

1981?

A

IBM -> 1st personal computer

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14
Q

1984 ?

A
  • Apple -> 1st personal com w GUI / pointing device,Macintosh
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15
Q

2002?

A

1st tablet

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16
Q

2010?

A

Ipad

17
Q

Is calculator a computer?

A

Yes

18
Q

What is I-P-O ?

A
  • Input -> process -> output
  • three stages of computer operation
19
Q

Main component of computer?

A

CPU, power supply, motherboard, storage devices

20
Q

CPU? Definition

A
  • Central Processing Unit
  • brain of computer
  • consists many electronic & logic circuits to perform logical operations
  • major manufacturers->Intel , AMD
21
Q

Motherboard? Definition

A

-main circuit board
- holds many important components
( CPU, main memory, display card, input/output connection interface , network interface )

22
Q

Power supply ? Definition

A
  • electronic device that supplies electric power of different voltage to main components
  • generates a lot of heat during operation, has a fan for cooling down
23
Q

Storage devices ? Definition

A
  • for keeping data
  • Eg. Hard disk , SSD , RAM
24
Q

What is CPU responsible for ?

A

Fetching , interpreting , executing the instructions of computer programs

Computer Literacy (1 decks)

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