Chapter 3 Outline

# Chapter 3 Outline - Chapter 3 At the lowest level a...

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Chapter 3 At the lowest level, a computer is an electronic machine. The presence of a voltage is “1” and absence of a voltage is “0”. The basic unit of information is the binary digit , or bit . A collection of n bits has 2 n possible states. A digital system has a finite number of symbols. NOT A( NOR) NOT B is = to what? A NAND B = to what? Any information can be represented in binary. EBCDIC stands for Extended Binary Coded Decimal Interchange Code . This is a standard for representing alphanumeric text. This is a standard associated with IBM computers. Assigns 8 bits per character and is an extension of binary coded decimal (BCD) Unicode can represent at least 65,000 many unique characters The Extended ASCII standard assigns how many bits for each alphanumeric character? 8 The simple ASCII standard assigns how many bits for each alphanumeric character? 7 An 8-bit code can represent how many unique characters? 256 All text can be translated into binary code.

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Chapter 3 Outline - Chapter 3 At the lowest level a...

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