أساسيات علم الحاسب

Computers operate on electrical power:

• True

• False

Internal components of the computer can distinguish only two states:

• Low voltage

• High voltage

• Both

• None of the above

The language used by computers is based on the number system:

• Binary

• Octal

• Decimal

• Hexadecimal

The binary number system represents numbers using two digits (0 and 1):

• True

• False

The smallest unit of data representation in computers is called:

• Bit

• Byte

• Kilobyte

• Megabyte

The base of the hexadecimal number system is:

• 2

• 8

• 10

• 16

In the hexadecimal number system, we use the letter (B) to represent the number:

• 11

• 12

• 14

• 15

In the hexadecimal number system, we use the letter (E) to represent the number:

• 11

• 12

• 14

• 15

To represent text in a computer, we use what is called a coding system:

• True

• False

One of the most famous coding systems is ASCII:

• True

• False