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- 3. The term "format" has several meanings, related to 1) disk formatting, 2) page formatting, and 3) file formats. 1) Disk formatting. In order for storage media, such as a hard drive or flash drive to be recognized by your computer, it first needs to be initialized, or "formatted."Jan 20, 2010
- 4. In data communications, bits per second (abbreviated bps or bit/sec) is a common measure of data speed for computer modems and transmission carriers. As the term implies, the speed in bps is equal to the number of bits transmitted or received each second.
- 5. While this term originally referred to a clever or expert programmer, it is now more commonly used to refer to someone who can gain unauthorized access to other computers. A hacker can "hack" his or her way through the security levels of a computer system or network.
- 6. Printing A 3D printer is a computer-aided manufacturing (CAM) device that creates three-dimensional objects. ... 3D printers use a process called additive manufacturing to form (or "print") physical objects layer by layer until the model is complete.Jan 2, 2014
- 8. a unit of memory or data equal to 1,024 (210) bytes.
- 10. A scanner is an input device that scans documents and images, which can be imported into a computer. They are available in flatbed or sheet-fed versions and are usually connected via a high-speed USB port. OCR software can be used to recognize text documents imported from a scanner.Jan 23, 2009
- 11. A cursor is the position indicator on a computer display screen where a user can enter text. In an operating system with a graphical user interface (GUI), the cursor is also a visible and moving pointer that the user controls with a mouse, touch pad, or similar input device.
- 13. URL is the abbreviation of Uniform Resource Locator. It is the global address of documents and other resources on the World Wide Web. ... A URL is one type of Uniform Resource Identifier (URI); the generic term for all types of names and addresses that refer to objects on the World Wide Web.
- 14. A system of signals used to represent letters or numbers in transmitting messages. The instructions in a computer program. Instructions written by a programmer in a programming language are often called source code.
- 18. In computing, virtualization refers to the act of creating a virtual (rather than actual) version of something, including virtual computer hardware platforms, storage devices, and computer network resources.
- 19. The data is usually text, a numeric value, or a formula. The entire spreadsheet is composed of rows and columns of cells. A spreadsheet cell is analogous to a field in database management systems. Individual cells are usually identified by a column letter and a row number.
- 21. JPEG. Stands for "Joint Photographic Experts Group." JPEG is a popular image file format. ... Still, the compression algorithm is lossy, meaning some image quality is lost during the compression process.Jul 26, 2016
- 22. A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves.
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- 1. home page - Computer Definition. Also known as page and Web page. A document that serves as a starting point on a Web site. A home page typically contains hypertext and navigation buttons that allows the user to navigate the site by clicking them with a mouse and invoking hyperlinks to other pages and even other sites.
- 2. A computer network or data network is a telecommunications network which allows nodes to share resources. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media.
- 3. A firewall is a network security system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both.
- 4. a program with a graphical user interface for displaying HTML files, used to navigate the World Wide Web.
- 7. DNS. (Domain Name System) The Internet's system for converting alphabetic names into numeric IP addresses. For example, when a Web address (URL) is typed into a browser, DNS servers return the IP address of the Web server associated with that name.
- 9. Encryption is the most effective way to achieve data security. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it. Unencrypted data is called plain text ; encrypted data is referred to as cipher text.
- 11. CAD (computer-aided design) software is used by architects, engineers, drafters, artists, and others to create precision drawings or technical illustrations. CAD software can be used to create two-dimensional (2-D) drawings or three-dimensional (3-D) models.
- 12. A router [a] is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. A data packet is typically forwarded from one router to another router through the networks that constitute the internetwork until it reaches its destination node.
- 15. When used to describe data storage, 1,024 megabits. (2) When used to describe data transfer rates, it refers to 10 to the 9th power (1,000,000,000) bits. Gigabit is abbreviated Gb, as opposed to gigabyte, which is abbreviated GB.
- 16. The most widely used local area network (LAN) technology. Defined as the 802.3 standard by the IEEE, the Ethernet access method is used to connect computers in a company or home network as well as to connect a single computer to a modem for Internet access.
- 17. The word wireless is dictionary defined as "having no wires". In networking terminology, wireless is the term used to describe any computer network where there is no physical wired connection between sender and receiver, but rather the network is connected by radio waves and/or microwaves to maintain communications.
- 20. Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible