provided by the sensor and sending the barcode’s content to the scanner’s output port. Biometrics Biometrics[1] (or biometric authentication)[note 1] refers to the identification of humans by their characteristics or traits. Biometrics is used in computer science as a form of identification and access control.[2] It is also used to identify individuals in groups that are undersurveillance.[citation needed] Biometric identifiers are the distinctive‚ measurable characteristics used to label and describe
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5 basic operations performed by computer system Inputting Storing Processing Outputting Controlling The internal structure of a computer looks like above: Input unit: Input unit links the external environment with the computer system. Data and instruction must be entered to the computer before performing any competition. Data or instructions can be entered through input devices eg. Key board‚ or any other input devices. Input unit transferred this data into binary coded in short input unit
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Verbal Abuse Is Still Abuse “Choke” is an ad made by the Euro RSCG Chicago for the Juvenile Protective Association. This ad comes from a campaign to stop verbal abuse of children. “These disturbing PSA ads by Juvenile Protective Association visually illustrate that ’Verbal abuse is still abuse. ’ And unlike physical abuse which leaves visible marks on the outside‚ you are leaving wounds with your words that may take a young kid a lifetime to heal” (Sleepless in Amman). The key elements that
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A computer is an electronic device that can receive a set of instructions or program and the carry out this program by performing calculations on numerical data or by compiling and correlating other forms of information. ("Computer" Encarta). It also performs calculations and processes information with astonishing speed and precision. Computer Technology has improved our lives. It will continue to affect our future which will lead to an easier‚ less complicated lifestyle‚ with more job opportunities
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HISTORY AND APPLICATIONS OF COMPUTERS || INTRODUCTION When more than one thing is needed to work together before an action can take place‚ we say we have a system. The computer needs several things before it can be used to solve problems. Therefore‚ we say the computer is a system. We may have systems around us even in our body. How we eat or what happens to the food we eat is a system. This is called the Digestive System. We need mouth‚ tongue‚ teeth and stomach for us to make good
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effort a customer needs to put into dealing with his computer problem. • Surprisingly‚ our small size is an advantage: customers will recognize us (and future employees)‚ and will know they will get the same great service every time they call. 4.1 Implementation Because we are the one-stop solutions center for your entire computer needs. Not only can we support your software and hardware‚ but Computer Repair Center can repair your computers‚ networks‚ hardware‚ software‚ data back up‚ and much
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Selected 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 exist
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History of Computer Introduction Man’s progress is measured by sophistication of his tools. First‚ he discovered how to control fire. Eventually‚ he invented the wheel. He built boats and earned to harness the wind. As soon as commerce developed in the early societies‚ people recognized the need to calculate and keep track of information. They soon devised simple computing devices and bookkeeping systems to enable them to add‚ subtract‚ and simple record transactions. Today‚ we are witnessing
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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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Improvements on common machines Computer- For most of the people‚ computer is a machine used for a calculation or a computation‚ but actually it is much more than that. Precisely Computer is an electronic device for performing arithmetic and logical operation. Or “Computer is a device or a flexible machine to process data and converts it into information.” To know about the complete process that how computer works‚ we will have to come across the various terms such as Data‚ Processing and Information
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