Computer Science flashcards, diagrams and study guides
Discover popular Computer Science study sets on Quizlet. Study Computer Science topics like Computer Networks, Operating Systems and Databases. Learn what you need to get good grades in Computer Science classes. Memorize important Computer Science terms, definitions and concepts. Prepare for Computer Science homework and exams with free online flashcards, diagrams, study guides and practice tests.
Top 20 sets of about 514,960
Get data from the keyboard, a file, a sensor, or some other device.
Display data on the screen, or send data to a file or other device.
Check for certain conditions and execute the appropriate code.
anything you put online leaves a path
small computer files that record date and time you visited site, how long you stayed on the site, and any personal information you provided
another person or company (advertisers)
An access point is a device, such as a wireless router, that allows wireless devices to connect to a network. Most access points have built-in routers, while others must be connected to a router in order to provide network access
ANSI (American National Standards Institute) is the primary organization for fostering the development of technology standards in the United States. ANSI works with industry groups and is the U.S. member of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC).
CENELEC (French: Comité Européen de Normalisation Électrotechnique; English: European Committee for Electrotechnical Standardization) is responsible for European standardization in the area of electrical engineering. ... CENELEC is a non-profit organization under Belgian law, based in Brussels.
The largest computer network in the world.
A location that provides wireless Internet access to the public.
A network that uses a host device connected directly to several other devices.
A collection of computers and other hardware devices that are connected together to share hardware, software, and data, as well as to communicate electronically with one another.
A phone, such as a cellular or satellite phone, that uses a wireless network.
A mobile phone that communicates via a cellular network; also called a cell phone.
is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS
helps take the complexity out of coding by providing Java APIs for many AWS services including Amazon S3, Amazon EC2, DynamoDB, and more
is a secure, durable, and extremely low-cost cloud storage service for data archiving and long-term backup. ... Customers can store data for as little as $0.004 per gigabyte per month, a significant savings compared to on-premises solutions.
is a branch of computer science that focuses on creating computer systems or computer-controlled machines (including robots) that have an ability to perform tasks that are usually associated with human intelligence and are (or were) generally performed by humans. By this definition, any computer program (or computer-controlled device) that accomplishes something normally thought of as intelligence by humans would be considered AI.
NLP works to develop software that understands written and spoken words and can interact with us using human language.
AI systems have senses just as we do. Instead of just five senses, AI systems use sonar, accelerometers, infrared, magnetic, and many other electronic sensors to gather data. Being able to combine all the data pouring in from sensors and then construct information from it is a difficult challenge.
1. B. An operating system provides an environment for the software to function but does not coordinate between software applications.
2. D. Linux is the only open-source OS discussed in this book.
3. A. A piece of software written for an OS will work only on that type of OS.
a case that contains electronic components of the computer used to process data; are available in a variety of shapes and sizes; made of metal or plastic and protects the internal electronic components from damage
sometimes called a system board; the main circuit board of the system unit
also called CPU or central processing unit; electronic component on a computer's motherboard that interprets and carries out the basic instructions that operate the computer; can contain a control unit and an ALU; impacts overall computing power and manages most of a computer's operations; the leading manufacturers of personal computer chips are Intel and AMD
-The brain of the computer system -*processes* all of the data and *instructions* that make the system work -the processing power of the *CPU* depends on different characteristics, like its *clock speed, number of cores* and *cache size*
- the control unit is in overall control of the CPU. Its main job is to *execute* program instructions by following the *fetch-decode-execute cycle.* - It controls the flow of data *inside* the CPU ( to registers, the ALU, cache) and *outside* the CPU (to main memory and input/output devices)
-The ALU basically does all the *calculations* -it completes simple *addition* and *subtraction*, compares the size of numbers and can do *multiplications* and *divisions* using repeated *addition* or *subtraction* -it performs logic operations such as: *AND*, *OR* and *NOT*, and *binary shifts* -contains the *accumulator* register
A scalable and configurable framework that helps organizations deliver new products, services, and solutions in the shortest sustainable lead time, with the best possible quality and value
- A freely revealed knowledge base of integrated, proven patterns for enterprise Lean-Agile development - Synchronizes alignment, collaboration, and delivery for large number of teams
1. Built-in Quality 2. Program execution 3. Alignment 4. Transparency
The Operating System
Windows 7, Windows Vista, and Windows XP operating system
Two or more users have individual accounts that allow them to work with programs and peripheral devices at the same time.