Across
- 5. part of a computer system or network that is designed to block unauthorized access while permitting outward communication.
- 6. program with a graphical user interface for displaying HTML files, used to navigate the World Wide Web.
- 8. computer networking, or other communication using radio signals, microwaves, etc.
- 10. device that scans documents and converts them into digital data.
- 11. person who uses computers to gain unauthorized access to data.
- 13. data is usually text, a numeric value, or a formula. The entire spreadsheet is composed of rows and columns of cells. A spreadsheetcell is analogous to a field in database management systems. Individual Cells are usually identified by a column letter and a row number.
- 15. Name Servers (DNS) are the Internet's equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.
Down
- 1. unit of information equal to one billion (109) or, strictly, 230 bits.
- 2. computing, virtualization refers to the act of creating a virtual (rather than actual) version of something, including virtual computer hardware platforms, operating systems, storage devices, and computer network resources.
- 3. stands for Uniform Resource Locator, and is used to specify addresses on the World Wide Web. A URL is the fundamental network identification for any resource connected to the web (e.g., hypertext pages, images, and sound files). URLs have the following format: protocol://hostname/other_information.
- 4. in computing) arrange or put into a format.
- 7. 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.
- 9. movable indicator on a computer screen identifying the point that will be affected by input from the user, for example showing where typed text will be inserted
- 12. system for connecting a number of computer systems to form a local area network, with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems.
- 14. Printing-a process for making a physical object from a three-dimensional digital model, typically by laying down many successive thin layers of a material.