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Concepts

QuestionAnswer
Hardware Tangible computer parts that you can touch. Typically used to input, process, output, and store data and information.
Tablet computer A flat touch screen. It often uses an onscreen virtual keyboard, a passive stylus pen, or a digital pen that supports advanced handwriting. It also uses speech-recognition software.
Output devices? Devices that receive computer processing data (monitors, printers, plotters, projectors, speakers) as opposed to devices that input information (webcams, mice, scanners, microphones, styluses).
Pixels "Pixel" is short for "Picture Element." Small little dots are make up the images on computer displays.
Bits (Binary digit) The smallest binary unit a computer can work with. (Bit combinations represent one character)
Nodes Point of connection to a network
Bytes A computer's memory and storage is measured in bytes. MB=million bytes, GB=billion bytes, TB=trillion bytes)
Motherboards A motherboard contains the computer's circuitry and components CPU, Operating System, RAM, ROM, etc.
USB ports USB standardizes the connection of computer peripherals, such as keyboards, pointing devices, digital cameras, printers, portable media players, disk drives and network adapters to personal computers.
Flash drives A USB flash drive is a commonly used external storage data storage device. It is considered an external drvice because it's plugged into the computer. Some external storage devices include: flash drives, SD card, camera cards, etc.
Internal storage devices Storage devices that are totally inclosed in the computer: hard drives, CDs, DVD's Blue ray disks.
Blue-ray discs Blu-ray Discs are optical, high density storage designed to hold much more and replace the DVD format.
Magnetic vs optical storage Optical storage uses a laser beam to read/ an optical disk (stores a lot more and is more reliable). Magnetic storage is the hard drive and must be shielded --less reliable.
System software System software is computer software designed to operate and control the computer hardware and to provide a platform for running application software. Its utility software helps analyze, configure, optimize and maintain the computer.
Application software Application software is designed to help the user perform specific tasks. Examples include office suites like word processing, spreadsheets, databases; accounting software, graphics software and media players.
Defragmentation The disk defragmenter is part of the operating system. It rebuilds fragmented files (regroups scattered portions of files) so they become whole again. This also helps use hard disk space more efficiently.
Free vs purchased software Freeware: Totally free Shareware: Temporarily free, with request to donate money Commercial: available for purchase
Cookies A small text file that contains a unique ID tag, placed on the user's computer by a website. Websites can access your cookies unless you have the option turned off. They can be useful.
Broadband connection High-bandwidth Internet connections for faster downloads and uploads (Fiber optics, dsl, satellite, and cable). Dial-up service, on the other hand, is a low-bandwidth, narrow-band connection.
Fiber optic A flexible, transparent fiber made of glass (silica) or plastic, slightly thicker than a human hair. Transmits over longer distances and at higher bandwidths (data rates). Not limited by distance, seldom disrupted.
Satellite Satellite service mainly for people who live in remote areas where DSL and cable are not available. Does NOT rely on copper wiring and is NOT limited by distance. Uses a dish. May be interrupted by high buildings, tall tress, and mountains.
Cable Uses the same technology that provices dable tv. Very popular due to its speed and widespread availability.
DSL DSL signals are sent along ordinary telephone lines.
Wi-Fi Wireless fidelity
IM Instant Messaging: a form of communication over the Internet, that offers an instantaneous transmission of text-based messages from sender to receiver.
Social networking The grouping of individuals into specific groups, using websites as social sites (like facebook or MySpace).
Email The most common means of Internet communication among business users
VoIP Voice is transmitted digitally
Spyware A type of malware (malicious software) installed on computers that tracks internet activity - collects information about users without their knowledge.
Phishing Pretends to be a reputable source while attempting to steal money or personal identity information .
Wikis A piece of server software that allows users to freely collaborate -- create and edit Web page content using any Web browser.
Virus A virus is a malicious code or software designed to infect and potentially damage programs or files on a computer that receives it. It can spread to other users when the program or file is shared.
Hacking Finding out weaknesses in a computer Seror computer network.
Firewall A software program or hardware device used to prevent unauthorized access to your computer - it controls the incoming and outgoing network traffic by analyzing the data packets and determining whether they should be allowed through or not.
Router Small physical devices that join multiple networks together.
NIC (Network interface card) Computer hardware component that connects a computer to a computer network.
WAP Wireless Access Point - a device that provides a location for wireless units to connect to a wired network using Wi-Fi, Bluetooth or related standards. The WAP usually connects to a router (via a wired network) if it's a standalone device.
Wired network Can use Phone lines, power lines, ethernet to connect. (A network is two or more connected computers)
blog A discussion or information site published on the World Wide Web consisting of "posts" typically displayed in reverse chronological order so the most recent post appears first.
Bluetooth connections A wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions)
RAM RAM (Random access memory) is a computer's short-term memory, storing data and program instructions.
ROM ROM (Read only memory) is nonvolatile memory that contains the initial program running when the computer starts.
Information processing cycle Data (text, numbers, graphics, video, and sound)is manipulated and converted to information during the process function of the information processing cycle.
Server A specialized computer that uses administrative software to manage network resources
Main Frame A computer that enables large organizations to simultaneously use institutional data and resources.
System unit Housing for the computer, sometimes referred to as the tower.
Ports Connect peripheral devices to the computer
Removable circuit boards Expansion cards that can be used to add new peripherals or increase a computer's capabilities
pointer Mouse on-screen representation. (Double click to open, or can be used to select and drag.
Arithmetic Logic Unit (ALU) Used to perform math and logical/comparison decisions.
Resolution Number of pixels on a screen
Laser printer Uses same process as photocopiers
Permanent memory Storage devices that retain data, information, and programs until the user deletes or overwrites them.
Windows The operating system that is on most desktop and laptop computers and has the largest market share
Mac OS versions Identified by big cats: Cheetah, Mountain lion, etc.
Linix Open source operating system
Trojan Horse Malware appears to be desirable but enables unauthorized access to your system.
Intranet Network or part of network where access is restricted to authorized users.
Peer to peer network Each node can communicate with every other node. There is no dedicated server or hierarchy
Bus A network topology that connects all nodes to a single, central high-speed line.
Spreadsheet software Used to perform fast, accurate calculations, convert data into charts, organize and sort lists, and perform preexisting formulas.
Web browser Software used to locate, display, and navigate websites
Word processor Enables you to create, edit, format, print, and save letters, memos, reports, and others documents
Docking station Connects laptops to a full size keyboard or monitor
Super Computer Most fast and most expensive and powerful computer.
Scanner Converts documents or photos to digital files
Embedded Computer Small computers built into other devices such as automobiles, microwaves ovens, and medical equipment.
Quiz Item: A _____ is a computer that can perform all of its input, processing, output, and storage activities by itself and is intended to be used by one person at a time. Correct Quiz answer - personal computer (Wrong answers: laptop, modem, table) Problem: true, also, for laptops and tablets.
Quiz Item: A _____ is a thin, lightweight mobile computer with a screen in its lid and a keyboard in its base. Correct Quiz answer - laptop (Wrong answers: personal computer, modem, tablet) Problem: could also be true with tablets (ex. surface pro)
Quiz Item: Instead of storing data, instructions, and information locally on a hard disk or other media, you can opt for _____ Correct Quiz answer - cloud storage (Wrong answers: optical disc storage, smartphone storage, flash drive storage)
Quiz Item: As shown in the accompanying figure, smartphones may have a touch screen and/or a mini keyboard or _____. Correct Quiz answer - slide out keyboard (Wrong answers: stylus, mouse, slide out track) Problem: some smartphones may also have a stylus)Quiz
Quiz Item: Which of the following is an input device? (multiple) Correct Quiz answers - keyboard and touch page (wrong answers: printer, display) Problem: if the screen is a touch screen, it may also function as an input device
Quiz item: A(n) _____ is any person who spends time using technology at home. Correct Quiz answer - home user Fill in blank Problem: Frequently referred to as "user."
Quiz item: A(n) _____ is a real-time typed conversation among two or more people on a comuter or mobile device connected to a network Correct Quiz answer - chat room (wrong answers: email, RSS, newsgroup) Problem - Should really be "chat"
System software Operating system
Enables users with computers and mobile devices to connect to the Internet wirelessly. Wireless Internet access points
A personal computer designed to be in a stationary location. Desktop computer
The World Wide Web, email, VOIP and FTP are examploes of _____. Internet services
Created by: maryharnishfeger