Basic computing terms part 3

Recycle bin: Files that are deleted from the hard disk will be moved to Recycle bin. Hence, Recycle bin stores deleted files and they can be restored, when they are needed.

Router: It is a physical device or software that forwards the data in the form of packets to other network.

Registry: It contains vital information about system’s settings, software and hardware configuration. Whenever a software is installed, software’s configuration settings is stored in the registry.

Rootkit: It is a stealth malware designed to enable complete access to the system without being detected.

Scanner: It is a input device that scans photos and papers.

Search engine: It is a software that is designed to search the web by indexing millions of websites. Famous search engine includes AOL,Google, Alta vista, Yahoo search and Bing.

Script: Script is nothing but an program that is usually created to do something automatically.

Skimming: Skimming is the theft of credit or debit card information. Skimmer is the device that is usually inserted into ATM  or POS machine to collect debit card  or credit card information that is stored in the magnetic strip.

Snipper: It is a network spying software or device. It collects all the available information about the network and it tracks all the data sent and received by the network.

Spam: It is unwanted message that is intended to cause annoyance or to do financial fraud.

Spyware: It is a malicious software installed without the knowledge of the user to monitor and store his activity. To know more information, visit Computer threats)

Syntax: Syntax is the general rules which have to be followed while writing a program. Each programming language has different syntax. Syntax is analogous to grammar. If one does not follow syntax while writing program, syntax error will appear.

Telnet: Telnet is the networking protocol that facilitates bidirectional text communication over internet or LAN.

Teleconference:Word “Tele” means “at distance”. Hence teleconference means attending a meeting or conference from any place.

Throughput: Throughput is defined as the amount of data transmitted over a network in a specific time.

Username: It is a unique name that is used to identify a physical person in the network or website. Each username has a password to prevent impersonation.

Virtual reality: It is the technology in which some real life situations or environment are simulated using advanced devices.

Virus: It is a self replicating malicious program.

Virtual memory: It is a technique in which temporary memory usage is transferred from RAM to secondary memory such as hard disk, pen drive, etc. note: High end Games are executed in the computer ,as the computer uses virtual memory. Following image shows the Navy personnel being trained in Virtual reality environment.


Web or World wide web: It is the collection of websites that can be accessed over internet.

Web site: It is the collection of related web pages that are usually hosted in separate domain.

Web browser: It is a software to access web sites and to transfer data over internet.

Web crawlers or spiders or ants: It is a automated program used by search engines for indexing by collecting information about the websites regularly.

Web scraping: It is  the automated process of extracting huge information from websites.


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