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Chapter 1
Networks and the Internet
Term | Definition |
---|---|
notebook computer | Similar to a microcomputer; however, it is smaller and portable. |
tablet pc's | A personal computer similar in size and thickness to a notepad on which youb can take notes using a stylus or digital pen on a touch screen. |
handheld operating system | Operating system for mobile devices. |
smartphones | Cellular devices that are able to send and recieve e-mail messages and access the internet. |
input devices | Enable the user to input data and commands into the computer. |
wearable pc's | Designed to be worn and used in many occupations. |
expansion boards | Are curcuit boards that connect to the motherboard to add function to the computer. |
CPU | Controls the flow of data between the computer's other units. |
Bus | A set of curcuits that connect the CPU to other components |
Rom | Contains the most basic operating instructions for the computer. |
ram | Where memory data and instructions are stored temporarily. |
sram | A high-speed memory referred to as chache. |
operating system | Software is run automatically when the computer is turned on and is used to control processing and peripherials. |
environment | Refers to a computer's hardware and software configuration. |
device driver | Is one type of utility program. |
utility programs | Has one clearly defined task, to manage input and output memory. |
Mac OS X | An operating system |
Linux | An operating system |
Unix | An operating system |
Web Administrator | Someone who runs and maintains a webpage |
Windows | An operating system |
Phishing | The act of sending an e-mail to a user falsley claiming to be a legitimate business in an attempt to trick the user into revealing personal information |
bus topology | A physical LAN topology that uses a single central cable to attach each node directly |
ring topology | A physical LAN topology where each node is connected to form a closed loop |
star topology | A physical LAN topology where each node is attached to a hub |
Cookie | Text file created by the server computer when a user enters information into a website |
hacker | Person who accesses a computer system without authorization |