Computer Fundamentals - 5589 Words

CHAPTER ONE COMPUTER SYSTEM FUNDAMENTALS 1.1 Computer System as a Universal Tool A computer system is an electronic device that accepts inputs; transform the input through some processes to obtain output or information that can aid effective decision making. Information originated from raw data which by its own simple definition is any raw fact or figure that can be subjected to a form of manipulation before it can be trusted for decision making. Data can originate from various sources depending on the user or purpose of gathering and can be processed manually, mechanically, electromechanically or pure electronically e.g. statistical data gathered through surveying, personnel data, student data through filling of some forms. Data†¦show more content†¦The machines then were mainframe computers that work under pressure and generate a lot of heat. The operators run up and down to load batched punch cards that contain user defined source codes, mount the magnetic disks or tapes. Because the computer time was valuable, the early machines ran 24 hours a day an d operator works in shifts. Jobs were submitted in batches and operated upon at the same time. The user interface on early computers consisted of stacks of punch or hollerith cards invented by Hollerith, one of the early computer inventors and instructions are coded in a special languages and organized using early Job Control Languages.. Early computer programming calls for experts and the job owners are virtually alienated from the operation of the computers. 1.2.1 Time Sharing Era The invention of the minicomputers in 1970s witnessed a new dimension to computer users. Hundreds of users operate the computer simultaneously, each having a terminal (keyboard and monitor) to himself.Show MoreRelatedcomputer fundamental1111 Words   |  5 PagesSelected objective question on Introduction to Computers with answer :Set 4 1. How many input lines are needed to construct 1024 bit coincident core plane? (a) 8 (b) 16 (c) 32 (d) 64 (e) None of the above. ANS: d 2. A digital computer is based on the principle of (a) measurement 1 / 23 Selected objective question on Introduction to Computers with answer :Set 4 (b) logic (c) multiplication (d) counting ANS: d 3. How many types of storage loops existRead MoreComputer Storage Is A Fundamental Component Of A Computer Essay2556 Words   |  11 PagesComputers are amazing. They allow us to play games, take notes, watch movies, and even design buildings. In order to do these things we need a way to access it in the form of computer storage. Computer storage is a fundamental component of a computer, it allows us to save and load things. Storage is space in a computer where data is to be processed and instructions required for processing are stored. There are two units of memory which is primary storage and secondary storage. Primary storage isRead MoreAdvantage and Disadvantage of Internet: Computer Fundamentals1164 Words   |  5 PagesDept of Computer Science, University of Jaffna. Table of Contents Computer Fundamentals Introduction to Computers A computer is a man-made, programmable electronic machine that can store, retrieve, and process data according to a given set of instructions. Whatever information given to a computer is termed input. The computer input typically comprises of two things: Data and Instructions. The data are the facts, which are to be processed, and the instructions describe how the computer shouldRead MoreFour Approaches to Information Technology Infrastructure Investment818 Words   |  4 Pagesstudy, design, development, implementation, support or management of computer- based information systems, particularly software applications and computer hardware. 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HFT is a program trading platform that uses powerful computers to transact a large number of orders at very fast speeds. High-frequency trading uses complex algorithms to analyze multiple markets and execute orders based on market conditions. (investopedia.comRead MoreEvaluating The Efficient Market Hypothesis1817 Words   |  8 Pagesdescribes the efficient ma rket hypothesis, its importance in the financial market, various types of efficient hypothesis and how it is beneficial for the customers in order to make profits. This research and the information collected will provide fundamental information to complete the case project for the Financial Management (SBS2103) subject, which is part of the Master of Business Administration program at APIC college. The Efficient Market Hypothesis (EMH) is important in finance as it playsRead More Reconciling Religious and Scientific Perspectives of Creation7359 Words   |  30 Pagesthe universe is. The first example of the finely tuned universe is the proportion of hydrogen to helium we observe: three-quarters hydrogen and one-quarter helium. The proportions of these two elements are based on the relationship between the fundamental forces of physics,[xiv] especially between the strong and weak nuclear forces. If this balance were slightly different, there would be no life, for either there would be all helium and no hydrogen or there would be no helium, and thus, no supernovaRead MoreDanshui Essay10393 Words   |  42 PagesUniversity of Wollongong ABSTRACT The theorising in accounting prior to 1970 was rejected as not providing sufficiently general theories. Informed by theories in economics and finance (and other disciplines such as psychology) and with the aid of computers, attempts to theorise accounting took a new direction. Large data collection and analysis emphasized a purportedly more systematic empirical approach to developing theory. 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