...A computer virus is a program that is designed to damage your computer, programs, and files. Like a virus in a living thing, a computer virus can spread if it is not removed. Some viruses are more dangerous than others. One of the most common places for a computer virus to appear is on a file found on the Internet or attached to an E-mail. Computer viruses didn’t really exist until the mid 1980s. The first computer viruses were created in university labs to demonstrate how much of a threat the vicious code could be. There are many kind of viruses that exist today. Some of the most common of Computer Viruses are: File Viruses, Boot Sector/Partition Viruses, Multi-Partite Viruses, Trojan Horses, File Overwriters, Polymorphic viruses, and Stealth Viruses. A File Virus is the most common kind of virus. These kinds of viruses usually infect .EXE and COM files, which are the main component of a program or application. A file virus can insert its own code into part of the file, so that when the infected program file is run, the virus is executed first. Most file viruses are memory resident. Because of this, they can easily attach themselves to other programs that are being run and start to infect that file. A simple virus will overwrite and destroy a host file, immediately letting the user know that there is a problem because the software will not run. Because these viruses are immediately sensed by the computer, they have a less chance to spread. More complex written viruses will cause...
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...LAPTOP SUMMAry Toshiba Satellite P50-ABT3N22 (Toshiba, 2014) Intel® Core™ i5-4200U Processor, (3M Cache,up to 2.60GHz) with Intel® Turbo Boost Technology 2.0 Windows 8.1 12GB DDR3L 1600MHz SDRAM (8GB + 4GB) 500GB HDD (5400rpm, Serial ATA) DVD SuperMulti (+/-R double layer) drive 15.6" FHD TruBrite® LED Backlit Display (1920 x 1080) No Touchscreen Premium Frameless LED Backlit Raised Tile Keyboard with 10-Keypad (black) Wi-Fi® Wireless networking (802.11b/g/n)+ Bluetooth 4.0 (150Mbps)\ Price= $699 Dell Alienware 18 (Dell, 2014) Alienware 18 | Alienware 18 | Operating System | Windows® 7 Ultimate 64-bit, English | Memory | 8GB Dual Channel DDR3L at 1600MHz | Keyboard | English Keyboard | Video Card | Dual NVIDIA® GeForce® GTX 780M with 4GB GDDR5 - NVIDIA SLI® Enabled | Driver | 5G WiFi Broadcom 4352 802.11n/ac and Bluetooth 4.0 driver | Hard Drive | 750GB 7200RPM SATA 6Gb/s | UPC Label | MOD,LBL,FGA001,UPC390,AW18R1 | CD ROM/DVD ROM | Slot-Loading 8x SuperMulti Drive (DVDR/RW) (Standard) | Wireless | Broadcom 4352 802.11 ac 2x2 and Bluetooth 4.0 | Cable | US 125V Power Cord | Documentation/Disks | Documentation, English | Support | 1 Year Alienware Basic Support | Systems Management | Alienware Command Center 3.0 | Resource DVD | Resource DVD | Placemat | Setup Instructions English | Retail Software | Dell.com Order | Primary Battery | 8-cell Lithium Ion (86 wHr) | Processor | Intel® Core™ i7-4700MQ...
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...1.4 Types of Computer in our Society 1. Analog Computers Analog Computer is a computing device that works on continuous range of values. The results given by the analog computers will only be approximate since they deal with quantities that vary continuously. It generally deals with physical variables such as voltage, pressure, temperature, speed, etc. 2. Digital Computers On the other hand a digital computer operates on digital data such as numbers. It uses binary number system in which there are only two digits 0 and 1. Each one is called a bit. The digital computer is designed using digital circuits in which there are two levels for an input or output signal. These two levels are known as logic 0 and logic 1. Digital Computers can give more accurate and faster results. Digital computer is well suited for solving complex problems in engineering and technology. Hence digital computers have an increasing use in the field of design, research and data processing. Based on the purpose, Digital computers can be further classified as, * General Purpose Computers * Special Purpose Computers Special purpose computer is one that is built for a specific application. General purpose computers are used for any type of applications. They can store different programs and do the jobs as per the instructions specified on those programs. Most of the computers that we see today, are general purpose computers. 3. Hybrid Computers A hybrid computer combines the desirable...
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...FGE 1023 COURSE : FUNDAMENTAL OF COMPUTER ORGANIZATION LECTURE : AZHAM BIN AHMAD NAME : MOHAMMAD FAISAL BIN OTHMAN MATRIC NUMBER :14C19007 COMPUTER HISTORY INTRODUCTION What is computer? In its most basic form a computer is any device which aids humans in performing various kinds of computations or calculations. In that respect the earliest computer was the abacus, used to perform basic arithmetic operations. Every computer supports some form of input, processing, and output. This is less obvious on a primitive device such as the abacus where input, output and processing are simply the act of moving the pebbles into new positions, seeing the changed positions, and counting. Regardless, this is what computing is all about, in a nutshell. We input information, the computer processes it according to its basic logic or the program currently running, and outputs the results. Modern computers do this electronically, which enables them to perform a vastly greater number of calculations or computations in less time. Despite the fact that we currently use computers to process images, sound, text and other non-numerical forms of data, all of it depends on nothing more than basic numerical calculations. Graphics, sound etc. are merely abstractions of the numbers being crunched within the machine; in digital computers these are the ones and zeros, representing electrical on and off states, and endless combinations of those. In other words every image, every sound, and...
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...Howard Mayo NT1230 4/3/12 8 Common Types of Computer Viruses Dictionary.com defines a computer virus as “a segment of self-replicating code planted illegally in a computer program, often to damage or shut down a system or network (“Virus,” 2012).” The term virus has become more generic over the years and has come to represent any type of malware, or malicious software. There are many types of malware that can be classified as viruses but it is the intention of this paper to examine 8 of the most common types. These types are virus, worms, trojans, adware/pop-up ads, spyware, keyloggers, rootkits, and scareware. * Virus- as defined above, a virus is self-replicating code planted in a computer program. This malware’s sole purpose is to destroy or shut down systems and networks. (“Virus,” 2012). * Worms- These are standalone programs whose sole purpose is to replicate and spread themselves to other computers. Their main use is to search for and delete certain files from computers. * Trojans- This malware is designed to look like a useful program while giving control of the computer to another computer. It can be used for several malicious things: * As part of a botnet to use automated spamming or distribute denial-of-service attacks. * Electronic money theft * Data theft * Downloading or uploading of files to the computer * Deletion or modification of files * Crashing the computer * Watching the viewer’s screen * Anonymous...
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...guide I will pick some computer choices that I believe would benefit a lawyer. If you're planning to only use your laptop for work, than paying attention to graphic card specs is unnecessary. Processing power and RAM should be your primary concern. For lawyers, mid-range processing power should be good enough . Any Intel Core i3 or i5s should be more than enough. As for RAM, more is always better. The bare minimum though is 2GB, but 4GB is ideal. Battery life is the main reason why you shouldn't go overboard with your processor. A powerful chip adds considerable heat and it can also drain your battery much faster. For lawyers, a long battery life is important. You never know when you'll need a power outlet. When it comes to choosing laptops for creative work, art or graphic design, digital painting or 3D modeling, there are a few considerations. If you're just creating 2D work, you can save money by not getting a high-end graphics card. What you get with a high end graphics card is to ability to move around a highly detailed or textured 3D model with no lag. Screen size and resolution will affect your productivity. A resolution of 1920 by 1080 pixels should provide ample working space and still be able to show menus, control palettes. Next consideration is screen size. A larger screen will enable you to see details clearer. Computer skills are becoming a fundamental part of education. Teachers that learn to type efficiently and use...
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...Four Types of Distributed Computer System Failures University of Phoenix August 19, 2013 David Conway Four Types of Distributed Computer System Failures This paper will discuss four common types of distributed computer system failures which are Crash failures also known as operating system failures, Hardware Failures, Omission Failures and Byzantine Failures. Included in the discussion are failures which can also occur in a centralized computer system, and how to isolate and repair two types of failures. Crash failures are normally associated with a server fault in a typical distributed system. Inherently crash failures are interrupt operations of the server and can halt operation for a considerable time (Projects Helper, 2012).Operating system failures are the best examples for this scenario. Operating System or software failures come in many more varieties than hardware failures. Software bugs in distributed systems can be difficult to replicate and, consequently, repair and or debug. Corresponding fault tolerant systems are developed and employed with respect to these affects. An operating system or software failure can also occur in a centralized system such as a data base this is why it is highly recommended to back up a data base using stable mass storage media (Projects Helper, 2012). We have an extensive...
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...If you are a system user, it is quite normal to face errors. In fact, whenever you make an effort to start the computer, execute certain applications or make an attempt to run certain files, you are sure to experience issues popping up on the screen of your computer. One of the errors concerning the aepic dll file on your computer loaded with windows 7, windows 8.1 and windows 8 is that there appears a glitch with letters and numbers on the address bar. This is where you can find the VSKsoft DLL Care to be of immense importance as it shall let you fix epic.dll related errors. Pictures not getting displayed As a result of a similar type of issue, the tabs of your browser keep on getting restored and the pictures on Facebook cannot be displayed either. The identical form of errors including “aepic.dll is missing” keeps on occurring even after resorting to options such as Mali remover, hitpro, safety scan and thread adware removal. One of the other forms of issues which often happen is that the security update for the aepic dll file in the x64-based computers fail to initiate in the intended way. Possible symptoms...
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...Volleyball is a team sport in which two teams of six players are separated by a net. Each team tries to score points by grounding a ball on the other team's court under organized rules.[1] It has been a part of the official program of the Summer Olympic Gamessince 1964. A scene of Volleyball play in Ervadi village. The complete rules are extensive. But simply, play proceeds as follows: a player on one of the teams begins a 'rally' by serving the ball (tossing or releasing it and then hitting it with a hand or arm), from behind the back boundary line of the court, over the net, and into the receiving team's court. The receiving team must not let the ball be grounded within their court. The team may touch the ball up to 3 times but individual players may not touch the ball twice consecutively. Typically, the first two touches are used to set up for an attack, an attempt to direct the ball back over the net in such a way that the serving team is unable to prevent it from being grounded in their court. The rally continues, with each team allowed as many as three consecutive touches, until either (1): a team makes a kill, grounding the ball on the opponent's court and winning the rally; or (2): a team commits a fault and loses the rally. The team that wins the rally is awarded a point, and serves the ball to start the next rally. A few of the most common faults include: * causing the ball to touch the ground outside the opponents' court or without first passing over the net; ...
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...Phương pháp nghiên cứu khoa học TS. Trần Tuấn Anh Tp Hồ Chí Minh, 2013 1 Môn học: Phương pháp nghiên cứu khoa học Số tin chỉ: 2 Mục tiêu: Cung cấp những kiến thức cơ bản về nghiên cứu khoa học. Bắt đầu từ chọn đề tài nghiên cứu, lập kế hoạch nghiên cứu, tìm và xử lý tài liệu tham khảo, cách thức viết, trình bày một báo cáo kết quả nghiên cứu – Đặc biệt là tập trung vào việc thực hiện được các tiểu luận, đề án, luận văn tốt nghiệp. Đánh giá: Làm tiểu luận (bài tập lớn): 30%. Thi cuối kì (tự luận): 70%. 2 Tài liệu tham khảo Giáo trình chính: 1. Hoàng Văn Huệ, Phương pháp tiếp cận nghiên cứu khoa học, Trường đại học Công Nghiệp Thực Phẩm tp. Hồ Chí Minh, 2011. Tài liệu tham khảo: 1. Vũ Cao Đàm. Phương pháp luận nghiên cứu khoa học. NXB Khoa học và Kỹ thuật. 2007. 2. Nguyễn Văn Tuấn. Đi vào nghiên cứu khoa học. NXB Tổng hợp TPHCM. 2011. 3. Nhật Từ, Cẩm nang viết khảo luận, luận văn, luận án. NXB tp.HCM, 2003. 4. Vũ Gia Hiền, Để viết bài luận văn tốt, NXB Lao Động, 2006. 3 Mở đầu: Đối tượng và ý nghĩa của phương pháp luận NCKH I. Đối tượng và nội dung nghiên cứu của phương pháp luận NCKH II. Ý nghĩa của nghiên cứu và nắm vững phương pháp luận NCKH Bốn lời khuyên vàng của Steven Weinberg 4 I. Đối tượng và nội dung nghiên cứu của phương pháp luận NCKH • Đối tượng nghiên cứu: + Tổng kết, phân loại, hệ thống hóa hoạt động NCKH + Khái quát cơ chế, phương pháp sáng tạo khoa học. + Tìm tòi biện pháp tổ chức, quản lý quá trình nghiên cứu khoa học...
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...Exercises Q1. Information about a firm is given below: Q2. ABC Ltd. has 1.2 million common shares outstanding and following sets of information is applicable to it: a. Dividend per share (DPS) is 0.30 when net income (NI) is INR 800,000. If the expected investments to be made is INR 1,000,000, estimate the total amount of debt to be raised to fund these investments. b. If in the previous case, net income would be INR 300,000, estimate the total amount of debt to be raised. c. If the investments of INR 1,000,000 is to be met by 50% debt and equity each, what will be the DPS if the net income realized would be INR 650,000. d. If the firm has to maintain a debt-equity ratio of 50% always for its funding requirements and has to pay a DPS of 0.30 when the net income realized is INR 650,000, what will be the maximum investment the firm can make. Q3. DEF Ltd. is presently an unlevered firm whose cost of equity is 12%. It is contemplating to recapitalize itself so that the resulting debt-equity ratio in market value terms would become 30:70 at the end of third year from now and remain as it is forever. It is estimated that the firm will be taking debt for the three years, whose interest is payable at the end of the year at a rate of 8% p.a., as follows: Time (t=) | 0 | 1 | 2 | Debt taken at the start of the year (INR Mn) | 120 | 180 | 240 | It is also estimated that the free cash flow to the firm (FCFF) would be growing at a rate of 5% p.a. after...
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...An aggregate of 50% in all the papers together is required to qualify in the examination. A candidate is considered to have passed the IPCC/IPCE if he passes both the groups constituting this level. He/she may get through the groups in one or more attempts either together or separately. Passing both groups together: A student is said to have passed both the groups together if he secures "a minimum of 40 marks in each paper and an aggregate of 50% in all the papers of both the groups put together" Passing only one group: A student is said to have passed one of the groups if he secures "a minimum of 40 marks in each paper and an aggregate of 50% in all the papers of that group" A typical Example | 1 | 2 | 3 | 4 | Total | 5 | 6 | 7 | Total | Grand Total | Result | A | 40 | 40 | 40 | 40 | 160 | 40 | 40 | 40 | 120 | 280 | Failed Both | | ✓ | ✓ | ✓ | ✓ | <50% | ✓ | ✓ | ✓ | <50% | <50% | | Didn't pass any group even when considered separately | | | | | | | | | | | | B | 54 | 40 | 43 | 52 | 189 | 42 | 48 | 44 | 134 | 323 | Failed Both | | ✓ | ✓ | ✓ | ✓ | <50% | ✓ | ✓ | ✓ | <50% | <50% | | Didn't pass any group even when considered separately | | | | | | | | | | | | C | 65 | 35 | 56 | 50 | 206 | 80 | 39 | 55 | 174 | 380 | Failed Both | | ✓ | × | ✓ | ✓ | ≥50% | ✓ | × | ✓ | ≥50% | ≥50% | | Didn't pass any group even when considered separately | | | | | | | | | | | | D | 40 | 40 | 40 | 50 | 170 | 80 | 40 | 60 | 180 | 350...
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...A device used to save data and instructions which is computer memory. In binary form is the content of memory. In order to carry out all kinds of operations, memory offers input to the processors. Thus, the processors save the results into memory (World of Computing, 2013). The characteristic of computer memory which are electrical characteristics, the manufacturing technology of the device depend on the voltage and current requirements. It is not main concern of the voltage due to most of the semiconductor memory device manipulate at TTL voltage levels. In addition, speed also is the characteristic of computer memory. There is a limit time to delay between the usability of stabilize and accurate of the data on the data lines because of the...
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...690012 Writing Essays on a Laptop or a Desktop Computer: Does It Matter? Guangming Ling and Brent Bridgeman Educational Testing Service To explore the potential effect of computer type on the Test of English as a Foreign Language–Internet-Based Test (TOEFL iBT) Writing Test, a sample of 444 international students was used. The students were randomly assigned to either a laptop or a desktop computer to write two TOEFL iBT practice essays in a simulated testing environment, followed by a survey of computer experience. The survey results suggested that the participants had extensive experience using computers, had more experience with laptops than with desktops, and preferred using the laptop computers to the desktop computers. The computer type (laptop or desktop computer) was found to have a negligible effect on essay performance (essay score, essay length, and writing speed). However, other factors, including gender, regional background, daily experience with laptop or desktop computers, preference for a particular pointing device, and previous TOEFL experience, were found to be significantly related to essay performance but did not interact with computer type. Keywords: computer type effects, desktop, e-rater, essay length, essay score, laptop, writing speed INTRODUCTION When large-scale computer-based testing began in the early 1990s, testing centers were equipped with standard desktop computers. At the time, this was the computer type most familiar to students. Testing on what...
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...Task 1: Examining RAM To find out the types of RAM available to upgrade your computer, follow these steps: 1. Acquire computer information: Determine the make, model, and serial number of your computer by physically examining it. On a desktop computer, these numbers are on the back of the computer. For a laptop computer, this information is on the bottom of the computer. If the model and serial number are not clearly visible, refer to the manufacturer’s website for this information; otherwise, select a laptop you would consider buying for yourself and use its model number to obtain the information. Alienware X51 R2. 5x099y1. 2. Acquire RAM Information from the OS: You can determine the amount of RAM from the OS by performing the following steps: I. For Microsoft Windows XP: Click StartControl PanelSystem. Under the General tab, you will find the type of OS, the model of your computer, the type of CPU and its speed, and the amount of RAM. II. For Microsoft Vista and Microsoft Windows 7: Click StartControl PanelSystem and SecuritySystem. Take a screenshot of the window that appears. 2. Check the computer manufacturer’s website: Go to the computer manufacturer’s website and locate the support Web page. Look for the section that tells you the type and amount of RAM installed in your computer, depending on your computer’s make, model, and serial number. Take a screenshot of the website with the information on RAM. 3. Check the commercial RAM website:...
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