I CSI 101 Chapter Notes - Chapter 1: Checksum, Huffman Coding, Mass Storage

• School: SUNY Albany
• Department: Computer Science
• Course: I CSI 101
• Professor: Gino Crispieri

Document Summary

* bit patterns are used to represent information. * boolean operation: an operation that manipulates one or more true/false values. * gate: a device that computes a boolean operation. * provide the building blocks from which computers are constructed. * flip-flop: a circuit built from gates that can store one bit. * one input line is used to set its stored value to 1. * one input line is used to set its stored value to 0. * while both input lines are 0, the most recently stored value is preserved. * hexadecimal notation: a shorthand notation for long bit patterns. * divides a pattern into groups of four bits each. * represents each group by a single symbol. * cell: a unit of main memory (typically 8 bits which is one byte) * most significant bit: the bit at the left (high-order) end of the conceptual row of bits in a memory cell.