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Intro Computer Appl

by: Bella Cormier

Intro Computer Appl CSCI 201

Bella Cormier

GPA 3.88


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Class Notes
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This 2 page Class Notes was uploaded by Bella Cormier on Friday October 30, 2015. The Class Notes belongs to CSCI 201 at The University of Tennessee - Martin taught by Staff in Fall. Since its upload, it has received 25 views. For similar materials see /class/232376/csci-201-the-university-of-tennessee-martin in ComputerScienence at The University of Tennessee - Martin.

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Date Created: 10/30/15
CSciZOl chapter 1 1 What is a computer An electronic device that can quickly and accurately handle the manipulation and processing of data according to a set of rules stored in its memory 2 What are computers used for Communicating games and entertainment keeping track of information controlling other things busness purposes etc 3 What are the general classifications of computers and what distinguishes each category from the others a Microcontrollers these are relatively small and not very powerfully usually made to perform a single function automatically b Personal computers these are normally intended for use by one person or few people whether for quotpersonalquot use or for business purposes This is the most familiar t e c Mainframes these are higher powered machines normally intended for use by many simultaneous users typically to support a good sized business and its needs d Supercomputers usually a tightly connected group of computers intended for the most powerful needs typically to support computationally intensive scientific programming often with many users and extensive data requirements 4 Name several categories of personal computers desktop laptop notebook pad mp3 and mp4 players digital cameras game consoles 5 What is the difference between data and information Data are facts Information is data that has been processed and organized into a more useful form 6 Describe the three major parts of a computer system a Hardware the physical components that make up the computer b Software the programs that control the actions of the computer c Liveware the living beings people that make use of computers 7 Describe three types of liveware a Users those people who use existing programs for whatever purpose b Programmers those people who create the programs c Non users those people who do not use computers Describe the five component groupings of computer hardware 00 a Input devices devices that allow data or instructions to be put into a computer system b Output dvices devices that take data from within a computer system and make it available for the user or for other computer systems c The system unit the hardware directly involved in the processing of data and instructions by a computer This includes among other parts the central processing unit CPU that performs as the brain of the system d Storage devices often referred to as memory devices the devices that store the data and instructions for the system and from which the system unit retrieves the data and instructions as nee ed e Communications devices the devices that allow a computer system to send and to retrieve information to and from other computer systems 9 Storage devices can be either volatile or nonvolatile What do these tw terms mean A volatile storage device loses the information it contains when power is turned off but a non volatile device retains the information stored there 10 Give several examples of each group of computer hardware from above Only a few answers are given here There are many more for each category Input devices keyboard mouse joystick touch screen microphone Output devices screen monitor speakers printer System unit CPU Storage devices thumb drive CD DVD hard drive RAM Communications devices modem NTC network interface card Q0 W ll Give several advantages and disadvantages of computers in today39s world Advantages speed and reliability of processing data ability to store large amounts of data in a small space Disadvantages health risks violation of privacy loss of jobs 12 What is a network Any group of two or more computers that can exchange data with each other 13 In a network situation distinguish between a client and a server A client is the computer that makes a request initiates an action The server is the computer that attempts to fill the request perform the action A client at one moment may be a server at the next and vice versa 13 Describe the two major categories for computer software a the operating system all the programs that act as an interface between the computer39s hardware and the applications that run on a computer


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