Computers – An Introduction A computer is defined as an electronic device that accepts input‚ processes it as per the given instructions and produces meaningful output. The term computer is used to describe a device which is combination of electronic and electromechanical devices. It is derived from the word “Compute” which means Calculation. “Charles Babbage” is known as the father of the computer. Data and Information Data refers to raw facts that are gathered and fed to the computer. A computer
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Classifications of Computers According to the U.S. Census "Forty-four million households‚ or 42 percent‚ had at least one member who used the Internet at home in 2000" (Home Computers 2). Today‚ no doubt‚ even more family members in the United States use computers. Most people are aware of the desktop computers which can be found in the home and in the workplace. What are the different types of computers and what are their purposes? Computers can be classified into three different categories
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PRELIM COMPUTER What is a Computer? A computer is an electronic machine that can be programmed to accept data (input)‚ process it into useful information (output)‚ and store it in a storage device for future use Characteristics of a Computer •It’s a machine. •It is electronic. •It is automatic. •It can manipulate data. •It has memory •It has logical function Capabilities of a Computer • Speed • Accuracy • Repetitiveness • Storage • Programmable Limitations of a Computer • Cannot operate without
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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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With increasing popularity of computer games‚ and multimedia home PC users often need an unexpensive computer system upgrade. By building a custom computer one is able to combine componenets‚ and operating system to provide maximal gaming performance. Computers are often called number manipulators‚ because of their ability to run millions of mathematical operations per second (White 43). Computers use binary system of numbers‚ which allows them to operate system of microscopic switches called transistors
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Task-1 Aim: To Identify the peripherals of a computer‚ components in a CPU and its functions. Draw the block diagram of the CPU along with the configuration of each peripheral and submit to your instructor. Description of the Computer Components: "computer" is a collection of devices that function as a unit. The most basic collection includes a Computer CPU‚ a Monitor‚ a Keyboard‚ and a Mouse. The Computer CPU is normally a rectangular box that sits on your desktop (called a "Desktop Case")
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Computer Crime This type of crime is the illegal exploitation of computer technologies‚ usually involving the Internet‚ to support crimes such as fraud‚ identity theft‚ sharing of information‚ and embezzlement. Exactly what is illegal varies greatly from state to state. Consequently‚ the growth of international data communications and in particular the Internet has made these crimes both more common and more difficult to police. Luckily there are people fighting computer crime and it is taken very
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I. What do you call the electronic equivalent of a user manual which helps beginners or first-timers application users’ work in an unusual or new environment? Web-based Manual Online Help Webpage Webpage help II. It allows users to access and interact with software from any computer or device that is connected to the internet Web page Web Applications Web Browser Web Site III. A software consists of programs designed to make users more productive and/or assist them with personal tasks
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Computer software can be divided into two main categories: application software and system software. Application Software: Application Software includes programs that do real work for user. Example: Payroll systems‚ Inventory Control‚ Manage student database‚ Word Processor‚ Spreadsheet and Database Management System etc. Application software consists of the programs for performing tasks particular to the machine’s utilization. Examples of application software include spreadsheets‚ database systems
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now seemed to overwhelm and constrict me as I longed for the flexibility of digitized text. The computer is the latest development in writing technology; a promises to change literary practices for better. Bonnie Laing‚ the author of the essay “An Ode to the User-Friendly Pencil” is strongly against the boycotting pencils. Unfortunately‚ Laing’s argument that the pencil is superior to a computer is poorly demonstrated due to her biased diction towards analog writing instruments and ignorance of
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