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47 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Bit(binary digit)
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Smallest unit of data in an electronic device (charged or uncharged, pitted or unpitted)
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1's and 0's that allow for the storage and manipulation of data. Total units of info stored = 2^#of bits
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Byte
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(8 bits) Bytes can represent any collection of items using a “look-up table” approach
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ASCII
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American Standard Code for Information Interchange
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"look up table" approach = bytes that are code for symbols
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binary number system
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uses only two values, 0 and 1, and is used by computers and digital devices to represent and process data.
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Benefits of Digital
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easy to: copy, transfer, and manipulate. It is long-lasting and syncs format
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Digital convergence
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the trend to merge multiple digital services into one device
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How are vector graphics stored?
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GIF, BMP, PNG
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How are Digital Graphics represented?
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binary numbers
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Satellite Radio
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digital radio that receives broadcast signals via a communications satellite
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Social implications of Information Technology
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telecommunications: are communications that take place electronically over a distance.
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computer network is a telecommunications network that connects two or more computers for data communications.
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Expert System
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An information system that can make suggestions and reaches conclusions in one particular area of expertise much the same way that a human expert can
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such as a medical expert system that makes recommendations based on a patient's symptoms
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Decision Support system
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An information system used to support problem-specific decision making,
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such as an online dating service's list of compatible partners
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Management Information System
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an information system used to provide useful information to decision makers, usually in the form of a report
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such as a quarterly report of investment earnings
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Transaction Processing System
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An information system used to support and record transactions
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such as a customer purchasing a product
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Components of a Computer Based Information System
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hardware, software, databases, telecommunications, people, and procedures
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documents, graphs, music, photos
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Digital Technology Metrics
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kilo,mega,giga,tera,peta,exa
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thousand,million,billion,trillion,quintillion
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Digital Technology Metrics
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kilo,mega,giga,tera,peta,exa
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thousand,million,billion,trillion,quintillion
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RAM
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random-access memory: temporary storage of the bytes of data and program instructions for the processor to access
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ROM
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stores the boot process instruction that start the computer and load the OS from hard drive into RAM
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CMOS
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memory provides semipermenant storage for system configuration information that may change.
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clock speed
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speed of the processor's internal clock (which is how fast in can process data),
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front side bus
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the connecting path between the processor and other key components
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CPU
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Central Processing Unit (CPU) is an integrated circuit (or microprocessor) that performs the processing
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Moore's Law
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the number of transistors per square inch on integrated circuits will doubled every 2 years
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CD/DVD/Blue-laser
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Optical storage media, such as CDs and DVDs store bits using an optical laser to burn pits into the surface of a highly reflective disk surface.
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Hard Disk
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Magnetic Media
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Flash Drive
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permanent storage without the need of electricity
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Operating system,
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The software that controls the computer’s use of its hardware.
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open source software,
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Uncompiled code available for programmers to modify at will (Linux)
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executable files,
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stores computer instructions in binary machine language
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programming language
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a set of rules that describe how programming statements and commands should be written.
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HTTP
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hypertext transfer protocol that controls the communication web clients and servers
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TCP/IP
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portion of the internet where the client software communicates requests to the servers using the packet-switching rules
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Personal Information Systems,
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calenders, appointments, contacts, to-do list that can be shared in a network
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spreadsheets
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numeric analysis software used to cary out "what if" scenarios
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database,
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for managing and querying data records
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word processors
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document production
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What is a cookie used for?
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the storage of small text files
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What do most international cellular carriers use as their network standard?
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GSM
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RFID
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Radio Frequency ID (RFID) uses tiny transponders in tags that can be attached to merchandise or other objects and read using an RFID receiver or reader for the purpose of identification
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WiMAX
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is the next generation broadband technology that is both faster and has a longer range than Wi-fi – 31 miles
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Wi-Fi
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Wireless Fidelity, or Wi-fi, is wireless networking technology that makes use of access points to connect devices to networks.
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LAN
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Local Area Network (LAN)
Connects computer systems and devices within a common geographic area |
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VPN
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Virtual Private Network (VPN)
Uses the Internet to connect an organization’s networks dispersed around the world into one large |
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WAN
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Wide Area Network Connects LANs between cities, cross country, and around the world using microwave and satellite transmission or telephone lines.
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Blog
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a Web site on which an individual or group of users produces an ongoing narrative
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Podcast
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an MP3 audio file that contains a recorded broadcast distributed over the Internet.
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