CCC 1. Objective Questions: Q1. A laser printer uses a) Raster scan b) Camera lens c) Heat sensitive paper d) None of these Q2. A Plotter is a) An input device to produce good quality graphics b) An output device to produce drawings and graphics c) A fast output device using camera lenses d) None of these Q3. Main memory stores a) Data only b) Program only c) Data‚ Program and result or any other kind of information d) None
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Are We Too Dependent on Computers? We have become too dependent on computers for answers‚ personal interactions‚ and we spend way too much time on them. If we used the computers for learning and as a tool this issue wouldn’t be as big. The sad truth is that people use this great tool for an easy way to get out of face to face interactions with other people. In 10-20 years it is said that there will be a computer smarter than the whole human race alive today. That is a scary future that we don’t
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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
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Axia College Material Appendix E Hardware/Software Components In your own words‚ describe the following hardware/software components |Legacy systems | Legacy systems are the hardware and software systems that are obsolete because its | | |data cannot be changed to a newer or application program cannot be upgraded most of | | |these may still be in use by the company.
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[pic] A computer is a combination of hardware and software. All computers--from the simple calculator to the complex supercomputer--use a combination of hardware and software. Depending on the functionality of the computer‚ your hardware and software will vary. Just as there are many types of hardware‚ there are many types of software available. Hardware Simplified Basically‚ hardware is the physical component that can be touched‚ be it a digital watch‚ calculator‚ cellular phone‚ laptop
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ter COMPUTER Computer is one of the wonderful wonders of modern science. It is a fairly recent invention. It has become an essential part of modern life. It has made our way of life easy and comfortable. We cannot do anything today without a computer. A computer is basically a processor of information. Any device that helps people perform mathematical calculation may be called a computer. A computer performs three functions. Firstly it receives data‚ secondly it process
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development of a project. In fact‚ it is the first step for any project The main problem in a project failure is the lack of requirements. The common requirement error is due to human (i.e lack of Communication between customer and the analyst)‚ software‚ etc. Example: Denver International Airport Reason: Underestimation of complexity‚ Complex architecture‚ Changes in requirements‚ Underestimation of schedule and budget‚ Dismissal of advice from experts‚ Failure to build in backup
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A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations automatically. Since a sequence of operations can be readily changed‚ the computer can solve more than one kind of problem. Conventionally‚ a computer consists of at least one processing element‚ typically a central processing unit (CPU)‚ and some form of memory. The processing element carries out arithmetic and logic operations‚ and a sequencing and control unit can change the
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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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of science‚ amongst other things. We have been observing great scientific achievements since the dawn of the 20th century. But the invention which has brought about a revolutionary change in the world is computer. The history of computer science began long before the modern discipline of computer science that emerged in the 20th century‚ and hinted at in the centuries prior. The progression‚ from mechanical inventions and mathematical theories towards the modern concepts and machines‚ formed a major
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