instead of the use of searching through books. 3. Back-up copies of work can be made easily‚ without having to re-write everything. 4. People can work from home‚ and spend more time with their families because of this. 5. People with disabilities whom can’t write‚ can get software that allows them to speak and it types it on the screen. Disadvantages: 1. People somtimes spend all their time secluded in theirs rooms on the computer. 2. Peadophiles on chat rooms 3. Easier to copy peoples homework
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teleprinter-style keyboards became the main input device for computers. A keyboard typically has characters engraved or printed on the keys and each press of a key typically corresponds to a single written symbol. However‚ to produce some symbols requires pressing and holding several keys simultaneously or in sequence. While most keyboard keys produce letters‚ numbers or signs (characters)‚ other keys or simultaneous key presses can produce actions or computer commands. Despite the development of alternative
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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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and quite literally destroy your computer. 3. Depending on the OS and software/hardware installed‚ they can be difficult to maintain. 4. If you have the internet and don’t have an Anti-Virus program‚ or at least an Anti-Spyware program‚ surfing the web can ruin your day. 5. Nothing lasts forever. 6‚ computers are taking places of labours and 1 computer can do a work of almost 100 acountents at 1 time and all pplz whos’ job is acountacy are job less coz of computer. 7‚ hackers can interfare in
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A computer system consists of mainly four basic units; namely input unit‚ storage unit‚ central processing unit and output unit. Central Processing unit further includes Arithmetic logic unit and control unit‚ as shown in the figure:. A computer performs five major operations or functions irrespective of its size and make. These are • it accepts data or instructions as input‚ • it stores data and instruction • it processes data as per the instructions‚ • it controls all operations inside a computer
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gadgets that makes our life easier have a computer. Some people says‚ its a great relieve that their work are much easier with the aid of computers. Other people taught that being too dependent to computers has a consequential negative outcome to mankind. In this essay‚ I will discuss the arguments for and against using computers. Firstly‚ computers are widely being used in different work field. Example of it‚ in airline industry‚ one of the most important component is computer. They are the
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SCHEME OF EXAMINATION & SYLLABI for B. TECH. COMPUTER SCIENCE & ENGINEERING SECOND YEAR (III & IV Semester) (Effective from the session: 2010-2011) Uttrakhand Technical University‚Dehradun www.uktech.in COURSES OF STUDY‚ SCHEME OF EXAMINATION & SYLLABUS FOR B.TECH CSE Semester-III Subject Code Subject Contact Hrs. 3-1-0 2-0-0 3-1-0 3-1-0 3-1-0 2-0-0 002 002 002 002 002 Credit 4 2 4 4 4 2 2 2 2 2 28 TCS-301 TCS-302 TCS-303 TEC-301 TCS-304 THU-301 PRACTICAL: PCS-302 PCS-303 PEC-350
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1. Explain the difference between engineers and technologists. Engineers are problem solvers. They are creative to use technical means to solve problems. They design products‚ systems‚ devices‚ and structures to improve our living conditions. They work with engineers and are concerned with the practical aspects of engineering in planning and production. 2. How can visualizing help an engineer in the design process? Visualization can help an engineer to mentally picture things that do not exist
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Horses Computer viruses are man-made program or a piece of code which can load onto your computer without your knowledge and cause damage to your computer system. The dangerous part of the computer viruses is they are attached to a file or program‚ which means the computer viruses will not running until you click the file or program‚ and even more dangerous type of viruses is one capable of transmitting itself across networks and bypassing security system. Worms are similar to computer viruses
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Computer Virus Information What is a computer virus? Think of a biological virus – the kind that makes you sick. It’s persistently nasty‚ keeps you from functioning normally and often requires something powerful to get rid of it. A computer virus is very similar. Designed to relentlessly replicate‚ computer viruses infect your programs and files‚ alter the way your computer operates or stop it from working altogether. It’s estimated that the Conficker virus infected more than 10 million computers
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