6-4b Coding Schemes

The combinations of 0s and 1s that represent uppercase and lowercase letters, numbers, and special symbols are defined by patterns called a _______ scheme.

• coding

• color

• consideration

Coding schemes map a set of ______ characters (letters and numbers) and special symbols to a sequence of numeric values that a computer can process.

• alphanumeric

• numeric

• ABC order

What does "ASCII" stand for?

• American

• Standard

• Code

• Information

• Interchange

In reference to the ASCII coding scheme, the letter "E" is represented as...

• 01000101

• 00101010

• 00110110

In reference to the ASCII coding scheme, the asterisk (*) symbol is represented as...

• 01000101

• 00101010

• 00110110

In reference to the ASCII coding scheme, the numeric character 6 is represented as...

• 01000101

• 00101010

• 00110110

When you press a key on a keyboard, a chip in the keyboard converts the key’s electronic signal into a special code, called a ______.

• scan code

• paint code

• Baylor bears

• byte

Computers rely on logic circuits, which are controlled by electronic switches whose state can be either on or off. Each switch’s on/off state is represented by one bit, whose value is either what two numbers?

• 0

• 1

• 2

• 3

• 4