HISTORY OF COMPUTERS Ancient era Suanpan (the number represented on this abacus is 6‚302‚715‚408) Devices have been used to aid computation for thousands of years‚ mostly using one-to-one correspondence with fingers. The earliest counting device was probably a form of tally stick. Later record keeping aids throughout the Fertile Crescent included calculi (clay spheres‚ cones‚ etc.) which represented counts of items‚ probably livestock or grains‚ sealed in hollow unbaked clay containers.[1][2]
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ELEMENTS OF COMPUTER SYSTEM Computer System Is a complete‚ working computer. The computer system includes not only the computer‚ but also any software and peripheral devices that are necessary to make the computer function. 1. Hardware 2.Software 3.Peopleware / Live ware HARDWARE It is best described as a device that is physically connected to your computer or something that can be physically touched. INPUT DEVICE –any device that allows the person to communicate information to the computer / gives
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Password Management: You must remember multiple user names and passwords to access various computer resources within your company. Each time your company introduces a new system‚ you must remember a new user name and password‚ some of which you are unable to customize. What steps will you take to manage your passwords? When managing passwords and user names that you were given by your company always make sure to write it down on a certain piece of paper and put it in a safe place. Nowadays
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PRELIM COMPUTER What is a Computer? A computer is an electronic machine that can be programmed to accept data (input)‚ process it into useful information (output)‚ and store it in a storage device for future use Characteristics of a Computer •It’s a machine. •It is electronic. •It is automatic. •It can manipulate data. •It has memory •It has logical function Capabilities of a Computer • Speed • Accuracy • Repetitiveness • Storage • Programmable Limitations of a Computer • Cannot operate without
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Bahçeşehir University Department of Computer Engineering CMPE 2204 Introduction to Computer Networks Spring 2013 Chapter 1 Data Communications and Networks Overview and Protocol Layers Dr. Çağrı Güngör 1 Basic Info about the Course • Course Content (tentative): — Computer networks; network architectures; protocol layers; TCP/IP; principles of Internet; wireless networks; introduction to network management‚ etc.. • Course Objectives: — Understand widely known network protocols‚ communication
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Computer Networks NETWORKING CONCEPTS Network A network is basically an interconnection of various points to make a connected system e.g Road‚ Telephone‚ Social Data Network A computer network therefore refers to an interconnection of computers and other peripherals by use of a communication link Peer to Peer Networks In a peer-to-peer network‚ all computers are considered equal; they all have the same abilities to use the resources available on the network. Peer-to-peer networks are designed
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Computer Science Quiz Questions With Answers - Multiple Choice 1- IC chips used in computers are usually made of 1. Lead 2. Silicon 3. Chromium 4. Gold Answer: Silicon 2- One kilobyte is equal to 1. 1000 bytes 2. 1024 bytes 3. 100 bytes 4. 1023 bytes Answer: 1024 3- Which of the following is not an example of Operating System? 1. Windows 98 2. BSD Unix 3. Microsoft Office XP 4. Red Hat Linux Answer: Microsoft Office XP 4- Which supercomputer is developed by
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presents the background of the study‚ problem and its significance‚ and the scope and limitation of the study. Background of the Study In this Information Age we are able to process or transmit‚ sort and retrieve data or information between one computer to another. With this‚ it makes the communication and different task done easy and less time consuming and hassle free. Like in schools‚ offices this brings a big help. In schools especially in colleges/universities it is consist of different people
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Computer science From Wikipedia‚ the free encyclopedia Computer science (abbreviated CS or CompSci) is the scientific and practical approach to computation and its applications. It is the systematic study of the feasibility‚ structure‚ expression‚ and mechanization of the methodical processes (or algorithms) that underlie the acquisition‚ representation‚ processing‚ storage‚ communication of‚ and access to information‚ whether such information is encoded in bits and bytes in a computer memory or
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The Effects of Home Computers on Educational Outcomes: Evidence from a Field Experiment with Community College Students forthcoming Economic Journal Robert W. Fairlie University of California‚ Santa Cruz rfairlie@ucsc.edu Rebecca A. London Stanford University rlondon@stanford.edu July 2011 We thank the Community Technology Foundation of California (ZeroDivide)‚ UCACCORD‚ and Computers for Classrooms‚ Inc. for funding. We thank Hardik Bhatt‚ Jesse Catlin‚ Eric Deveraux‚ Oliver
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