Digital

What is smallest unit of the information?

1. 
   

• 1. A bit

• 1. A byte

  
  

• 1. A block

  
  

• 1. A nibble

  
  

Which of the following is the extension of Notepad?

1. 
   

• 2. .ppt

• 1. .xls

• 2. .txt

• 1. .bmp

The central processing unit is located in the

• 1. Hard disk

• 1. System unit

• 1. Memory unit

• 1. Monitor

How many bytes does 4 kilobytes represent?

1. 
   

• 4096 bytes
• 1024 bytes
• 5120 bytes
• 2048 bytes

What is the speed of computer measured in?

• Pixels (px)

• Bytes (B)
• Megabytes (MB)
• Gigahertz (GHz)

Which of the following is not considered hardware?

• Printer

• Keyboard
• Monitor
• Operating system

Which logic gate is also called an inverter?

• AND gate
• OR gate
• NAND gate
• NOT gate

What is the output of a NOR gate if both inputs are LOW?

• HIGH
• LOW and HIGH
• LOW

• UNKNOWN

How many cells does a 3-variable K-map contain?

• 8
• 10
• 4
• 6

How many inputs does a half-adder circuit have?

• 4
• 3

• 2

• 1