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Technology in Action - Chapter 2
Terms in this set (50)
A data processing device that performs four major functions:
Input: It gathers data or allows users to enter data.
Process: It manipulates, calculates, or organizes that data into information
Output: It displays data or information in a form suitable for the user.
Storage: It saves data and information for later use.
A representation of a fact, a figure, or an idea. It can be a number, a word, a picture, or even a recording of sound.
Data that has been organized or presented in a meaningful fashion.
Approximately 1,000 bytes
About 1 million bytes
Around 1 billion bytes
Around 1 trillion bytes
1,000 terabytes of data
The set of computer programs that enables the hardware to perform different tasks
The set of programs you use on a computer to help you carry out tasks such as writing a research paper
The set of programs that enables your computer's hardware devices and application software to work together
The program that control how your computer system functions
A portable computer integrated into a flat multitouch-sensitive screen
Laptop or Notebook Computer
A portable computer that has a keyboard, monitor, and other devices integrated into a single compact case
A small, lightweight laptop computer that is generally 7 to 10 inches wide and has a longer battery life than a laptop
Full-featured but lightweight laptop computer designed to compete with the MacBook Air.
Tablet (convertible) PC
Similar to a laptop computer, but the monitor swivels and folds flat.
A component, such as a monitor or keyboard, that connects to the computer.
A large, expensive computer that supports many users simultaneously.
A specifically designed computer that can perform complex calculations extremely rapidly.
A specifically designed computer chip that resides in another device, such as your car or the electronic thermostat in your home.
The most common keyboard layout. Originally designed for typewriters and was meant to slow down typist and prevent typewriter keys from jamming.
A wireless transmission standard that lets you connect devices to peripheral devices such as keyboards and headsets.
Uses a internal sensor or laser to detect the mouse's movement.
Liquid Crystal Display (LCD)
An LCD monitor, also called a flat panel monitor, is light and energy efficient.
Light-Emitting Diode (LED)
More energy efficient and may have better color accuracy and thinner panels than LCD monitors.
Width-to-height proportion of a monitor; traditionally the ratios are 4:3, but newer models have ratios of 16:9 to accommodate HD format video.
Such as inkjet printer sprays ink or uses lasers beams to transfer marks onto the paper.
Tiny hammer-like keys that strike the paper through an inked ribbon to make marks on the paper
The main circuit board that contains the central electronic components of the computer, including the computer's processor (CPU), its memory, and the many circuit boards that help the computer function.
Expansion Cards (adapter cards)
Circuit boards that provide additional functionality
Provides a connection for the speakers and microphone
Provides a connection for the monitor
Network Interface Card (NIC)
Enables your computer to connect with other computer or to a cable modem to facilitate a high-speed internet connection, is often integrated into the motherboard.
RAM (Random Access Memory)
The place in the computer where the programs and dats the computer is currently using are stored. RAM is much faster to read from and write to than the hard drive and other forms of storage. RAM is temporary
Temporary storage, the data is erased when powered off.
ROM (Read Only Memory)
ROM holds all the instructions that the computer needs to start up when it's powered on. ROM is permanent.
Permanent storage, the data isn't erased when the power is turned off.
Billions of machine cycles per second.
Permanent storage devices located in your desktop or laptop computer in a space
A movement to encourage environmentally sustainable computing (or IT).
Very useful for laptops and ultrabooks because one port can allow you to connect up to six different peripherals to your computer.
Provides a fast transfer rate of 800 Mbps
Transfer data at speeds up to 10,000 Mbps
Housed inside the system unit, transforms the wall voltage to the voltages required by the computer chips.
Powering on your computer from a completely turned off state.
All documents, applications, and data you were using remain in RAM (memory) where they're quickly accessible when you restart your computer.
All documents, applications, and data you were using is stored on your hard drive instead of RAM and your computer is powered off.
Restarting the system while its powered on.
The science that deals with the design and location of machines and furniture so that the people using them aren't subjected to an uncomfortable or unsafe experience.
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