A computer is a machine that can be programmed to manipulate symbols. This is because a pdf will maintain the original fonts, images, graphics as well as the exact layout of the file. Unit 1 objectives computer definition columbia university. Pdf files are created using adobe acrobat, acrobat capture, or similar products.
This is because a pdf will maintain the original fonts, images. It can process both numerical and nonnumerical arithmetic and logical calculations. This is a broad definition but other aspects are involved. A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data input, process the data according to specified rules, produce information output, and store the information for future use 1. Following are definitions of common storage devices. Two basic network types are localarea networks lans and widearea networks wans. You can access a hard drive to use files that are stored there. A lan is two or more connected computers sharing certain resources in a. Pdf is short for portable document format pdf is a file format developed by adobe systems in 1992. Computer is an advanced electronic device that takes raw data as input from the user and processes these data under the control of set of instructions called program and gives the result output and saves output for the future use. A pdf file can store a wide variety of data, including formatted text, vector graphics, and raster images.
This definition explains what a supercomputer is, how it works and provides features of sunway taihulight. It also includes all the parts inside the computer. Computer terms dictionary developed by the tips4pc community. Over 6,500 entriespreviously named a dictionary of computing, this bestselling dictionary has been fully revised by a team of computer specialists, making it the most uptodate and authoritative guide to computing available.
Computer definition of computer by medical dictionary. It was developed by adobe 1992 and has since become one of the most widely used formats for saving and exchanging documents. Pdf is a file format developed by adobe systems in 1992. The major components of generalpurpose computer system are input unit, maininternal memory or storage unit, output unit, central processing unit.
It has the ability to accept data input, process it, and then produce outputs. If this file is copied to a computer, virus is also copied to the computer. The dictionary of computer and internet words will help readers make their way successfully through computer manuals, help files, web sites, and the computer section of the newspaper. Computer hardware includes all the electrical, mechanical, and the electronic parts of a computer. A computer is a programmable machine designed to perform arithmetic and logical operations automatically and sequentially on the input given by the user and gives the desired output after processing. Pdf on nov 9, 20, jeleel adekunle adebisi and others published fundamentals of. A computer is a device that accepts information in the form of digital ized data and manipulates it for some result based on a program or sequence of instructions on how the data is to be processed.
It is useful because it allows the document to be viewed and printed the same way on any device. The term is not a standard dictionary definition with nondefinitional text added. In computer security, verification that a message has not been altered or corrupted. These computer systems are vital to the performance of many daily tasks but it was the personal computer that transformed the way most of us think and work. Short for portable document format, pdf is a file format and file extension developed by adobe that enables users to capture the native appearance of a document. Computer hardware is the collection of physical parts of a computer system. Network systems and data communications analysts 6. Before getting into computer programming, let us first understand computer programs and what they do. General purpose machine, commonly consisting of digital circuitry, that accepts inputs, stores, manipulates, and generates outputs data as numbers, text, graphics, voice, video files, or electrical signals, in accordance with instructions called a program. The computer remained associated with human activity until about the middle of the 20th century when it became applied to a programmable electronic device. Pdf is also an abbreviation for the netware printer definition file.
A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data input, process the data according to specified rules, produce information output, and store the information for future use1. Definition a computer is a machine that can be programmed to manipulate symbols. Computer definition of computer by the free dictionary. Based on the postscript language, each pdf file encapsulates a complete description of a fixedlayout flat document, including the text, fonts. Pdf portable document format is a file format that has captured all the elements of a printed document as an electronic image that you can view, navigate, print, or forward to someone else. In the windows operating system an active window is the current window that you are working on. It can execute a prerecorded list of instructions a program. Computers can also store data for later uses in appropriate storage devices, and retrieve whenever it is necessary. Pdf is a file format designed to present documents consistently across multiple devices and platforms. The cpu is further includes arithmetic logic unit alu and control unit cu. How does computer science relate to computer engineering.
Computer software is programming code executed on a computer processor. Pdf is a multiplatform file format developed by adobe systems. List and explain in brief the characteristics of computers. Computer definition and meaning collins english dictionary. You can email a pdf document to your friend and it will look the same way on his screen as it looks on yours, even if he. Data can be defined as a representation of facts, concepts, or instructions in a formalized manner, which should be suitable for communication, interpretation, or processing by human or.
A device that computes, especially a programmable electronic machine that performs highspeed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information. List different types of computers pcs, mobile devices, embedded computers, etc. A computer is an electronic machine that can store and deal with large amounts of. Browse through our list of over 15,000 computer terms and definitions using the above search, browsing by letter, or by clicking one of the links below. In that sense, among all scientific disciplines, computer science is unique. This includes the computer case, monitor, keyboard, and mouse. It responds to a specific set of instructions in a welldefined manner. More than just a glossary, each term page goes into further detail with insights, real world examples and great related resources. The term in a standard, commonly accepted dictionary is inadequate for dod use. Complex computers also include the means for storing data including the program, which is also a form of data for some necessary. The american heritage dictionary 1980 gives its first computer definition as a person who computes.
Dod dictionary of military and associated terms, january 2020. Any kind of computers consists of hardware and software. A computer program is a sequence of instructions written using a computer programming language to perform a specified task by the computer. Database administrators to exploit the highpaying opportunities in it, a college degree in any of. In computer security, a process used to verify the user of an information system or protected resources. Technology definition, the branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment, drawing upon such subjects as industrial arts, engineering, applied science, and pure science. We will develop and describe in detail the term software component and its. Techopedia has one of the webs most comprehensive computer dictionaries. Computer hardware includes computer hardware includes 3 system unit 3 peripheral devices 3 input devices i.
Definition of a software component and its elements bill councill george t. Pdf captures formatting information from a variety of desktop publishing applications, making it possible to send formatted documents and have them appear on the recipients monitor or printer as they were intended. The two important terms that we have used in the above definition are. The computer processes the data that is fed to the computer by various means and the data already contained in internal memory to produce the results that is the core of all computer.
Computer network, two or more computers that are connected with one another for the purpose of communicating data electronically. A computer is a machine or device that performs processes, calculations and operations based on instructions provided by a software or hardware program. In computer security, the right granted to a user to communicate with or make use of a computer system. Definition of computer virus a computer virus is a program that may disturb the normal working of a computer system. A network is a group of two or more computer systems linked together. Including expanded coverage of multimedia, computer applications, networking, and personal computing, it encompasses all aspects of the subject.
Virus attaches itself to files stored on floppy disks, usbs, email attachments and hard disks. Any digital computer carries out five functions in gross terms. The internet is the largest computer network in the world, connecting millions of computers. Analog computer definition of analog computer by merriam. Techopedia it dictionary for computer terms and tech. The central processing unit or cpu, also known as the microprocessor or processor is the brain of the computer. Computer terms dictionary a to z computer meanings pdf. Introduction to computer concepts international records. The dictionary of computer and internet words is a first step in reducing the mystery of these new technologies.
Analog computer definition is a computer that operates with numbers represented by directly measurable quantities such as voltages or rotations. We also discuss personal supercomputers, multicore processors, gpgpus and a history of notable supercomputers over the decades, such as cray, roadrunner, tianhe and watson. Pdf files are frequently used in legal documents, such as tax papers, bank statements, and other. They are larger and have more processing power than some other classes of computers. Any part that we can see or touch is the hard ware.
The portable document format pdf is a file format developed by adobe in the 1990s to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. Mainframe computers or mainframes colloquially referred to as big iron are computers used primarily by large organizations for critical applications. A pdf file captures document text, fonts, images, and even formatting of documents from a variety of applications. The code can be machinelevel code, or code written for an operating system. A personal computer pc is a system that uses a microprocessor to provide computing to a single user.