G11 Revision Ch4

Binary numbering system is a system of numbers made out of two values: 0 and 1.

• True

• False

Logic gate may have one or two inputs but can only have one output.

• True

• False

The NOR gate is an AND gate followed by a NOT gate.

• True

• False

Answer explanation

NAND=AND+NOT

NOR=OR+NOT

Unicode is standard code for representing textual data in 6-bits

• True

• False

Answer explanation

Unicode 16 bit.

ASCII 8 bits

The logical binary addition 1+ B equals to 1

• True

• False

If A=1 and B=0, then the truth value of the equation B.A= 0

• True

• False

The alternative name for decimal numbers is base 2.

• True

• False

Answer explanation

Decimal base 10

Each eight bits are grouped together to form a ____

• Byte

• Kilobyte

• Megabyte

The biggest number in hexadecimal is 10 while the smallest number is 0.

• True

• False

Answer explanation

the biggest in hexadecimal if 15 or F

______________________numbering system is made out of 16 digits (base 16): 0-9, A-F.

• Binary

• Decimal

• Hexadecimal