Section 1 Introduction 1.1 COMMUNICATIONS Computer communications is the process of sharing data‚ programs‚ and information between two or more computers. We have discussed numerous applications that depend on communication systems‚ including: • E-mail – Provides a fast‚ efficient alternative to traditional mail by sending and receiving electronic documents. • Instant messaging – Supports direct‚ “live” electronic communication between two or more friends or buddies. • Internet
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THE VALUE OF COMPUTER EDUCATION TODAY Necessity is the mother of revolution. The saying holds true for computers also because computers were invented as a result of a main search for a fast and an accurate calculating device. A few days ago there were only few computers in our country. They were enormous and expensive machines. Although abacus was invented around 600 B.C. It is interesting to know that it can calculate at an amazing speed. The first mechanical adding machine was invented by Blaise
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The renaissance was an important pivotal point in world history. The accomplishments that arose from that era lasted for a majority of the late 16th century and for part of the early 17th century. As a matter of fact‚ the happenings of the renaissance was also around the same time period of when the world was experiencing its own dramatic changes. Through these rapid changes in lifestyle‚ society began to be fascinated with the workings of the universe and learned how to fill that void of constant
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Computers are commonly used items in many areas. It is an important thing to people‚ especially the people who run organizations‚ industry‚ etc. . . Almost anything you know is run or made by computers. Cars and jets were designed on computers‚ traffic signals are run by computers‚ most medical equipment use computers and space exploration was started with computers. Most of the jobs today require the use of computers. These ’mechanical brains ’ made a huge impact on our society. It would be hard
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INTRODUCTION Computer networking is the engineering discipline concerned with the communication between computer systems or devices. A computer network is any set of computers or devices connected to each other with the ability to exchange data. It is sometimes considered a sub-discipline of telecommunications‚ computer science‚ information technology and computer engineering since it relies heavily upon the theoretical and practical application of these scientific and engineering disciplines
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Computer systems may be classified into the following groups: 1 - The supercomputers are extremely fast computers that are used in scientific research for their ability to do large amount of calculations and store large amount of data. One use of these computers is weather forecast because of the large amount of calculations involved. 2 - Mainframe computers allows several thousands of users at any time. They are used by government companies‚ airline companies for bookings‚ insurance companies
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HISTORY OF COMPUTERS Historical records will tell us that man has invented three types of devices to assist him in calculating and processing data. These devices could be classified into: a) Manual-mechanical b) Electromechanical c) Electronic 2000 BC - MECHANICAL COMPUTER THE ABACUS * Computations are done by sliding beads on a wire arranged on a tray. Came from the Greek word abax meaning flat surface John Napier(1617) – Logs and Bones * a Scotsman‚ invented
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future is the thing that takes a lot of our time and efforts being computer oriented. We have to imagine‚ try to figure out what the future will bring us. We are supposed to lead our generation in looking for new and life enhancing technologies to make man ’s life easier and more enjoyable. How will it look like? [pic]THIS IS THE MOST IMPORTANT QUESTION THAT CAME TO OUR MINDS. • Will we be able to talk to our computers in the future? • Will they respond freely? • Can they understand
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com/resources/the-history-of-computers-in-a-nutshell/ * Mid 1800’s - 1930’s: Early Mechanical computers * invented by Charles Babbage in mid 1800’s - called “babbage engines” * These early computers were never completed during Babbage’s lifetime‚ but their complete designs were preserved. Eventually‚ one was finished being built in 20021930s: Electro-Mechanical Computers * 1930’s: Electro-mechanical Computers * Electro-mechanical computers generally worked with relays
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COMPUTER ADDICTION Addiction - "a habit so strong that one cannot give it up." We are all aware that people form addictions to many things‚ from cocaine to gambling. References to alcoholism‚ workaholism‚ even chocoholism‚ are commonplace throughout our society. The idea that people can form addictions to computing is a relatively new one‚ but quickly gaining ground. Perhaps some day the word "netaholism" will be as widely-used as the others; being a "user" may have more connotation than we realize
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