cca chapter 1

What is the difference between data and information?

• Data represents a fact. Information is data that has been organized.

  
  

• They are essentially the same thing.

  
  

• Data is numbers. Information is words.

  
  

• Data represents a process. Information is the stored data.

Computers use a ________ language consisting of 0s and 1s.

• symbol

  
  

• binary

  
  

• byte

  
  

• system

  
  

In binary language, each letter of the alphabet, each number, and each special symbol is made up of a unique combination of eight ________.

• bytes

  
  

• kilobytes

  
  

• characters

  
  

• bits

  
  

Which of the following computers is large, expensive, and is designed to execute a few programs as fast as possible?

• Desktop computer

  
  

• Supercomputer

  
  

• Mainframe computer

• Embedded computer

  
  

A keyboard and touch screen are the most common types of ________ devices.

• output

  
  

•  processing

  
  

• input

  
  

• storage

  
  

The number of pixels displayed on the screen is known as ________.

• contrast ratio

  
  

• aspect ratio

  
  

• brightness resolution

  
  

• screen resolution

  
  

The most common type of monitor for laptops and desktop computers is a(n) ________.

• liquid crystal display (LCD)

•  light-emitting diode (LED)

  
  

• organic light-emitting diode (OLED)

  
  

• cathode ray tube (CRT)

  
  

The computer stores currently used programs and data in ________.

• ROM

  
  

• CPU

• RAM

• USB

Which port is the most common port used to connect input and output devices to a computer?

• Universal serial bus (USB)

  
  

• Parallel

  
  

• FireWire

• Ethernet

  
  

All of the following are ways to avoid injuries when working on computers EXCEPT ______

• so you are looking up at it

  
  

•  purchasing an adjustable chair

  
  

•  ensuring proper lighting

• taking breaks