unit 1 -8 Grade quiz

(short for binary digit) is the smallest unit of data in a computer. A (short for binary digit) has a single binary value, either 0 or 1

• Bit

• Binary

• Digit

• Byte

a unit of data that is eight binary digits long. Often used to represent a character such as a letter, number, space

• Bit

• Byte

• Binary

• Digit

error that occurs when a computer approximates real numbers due to limitations in precision.

• Overflow Error

• Roundoff Error

• Underflow Error

• Syntax Error

occurs in a computer or similar device when a mathematical operation results in a number which is larger than what the device is capable of storing.

• Overflow Error

• Round Off Error

• Syntax Error

• Debugging Error

a minute area of illumination on a display screen, one of many from which an image is composed.

• Pixel

• Pixar

• Dreamworks

• Byte

Which of the following best describes how computing devices represent information?

• A computer will either represent information as bits or bytes but not both

• A computer represents data as a byte which is either a 0 or a 1.

• A computer represents data as bits which is either a 0 or a 1.

• A computer represents information as bits which contain 8 bytes.

How many numbers can be represented with an 8-bit binary system?

• 128

• 256

• 127

• 255

What is the minimum number of bits you would need to encode the 26 letters of the alphabet plus a space - a total of 27 characters?

• 2 bits

• 3 bits

• 5 bits

• 6 bits

Convert the decimal (base-10) number 129 to binary (base-2).

• 1000 0001

• 1100 0001

• 0110 0110

• 0001 1111

What is the 4-bit binary number for the decimal number 10? 

• 0010

• 1010

• 0110

• 0101