Flashcards

flash cards for unit 1.

Callum Devlin English 150 cards

Cards in this deck (150)

1what is the definition of communication?the imparting or exchanging of information by speaking, writing, or using some other medium.
2what is real time services?real time services is the news, sports updates and timetables for example flight radar.
3what is commerce?the activity of buying and selling, especially on a large scale.
4what is online government?The world-wide-web delivering government information and services to the citizens.
5what is online education?the process of receiving or giving systematic instruction, especially at a school or university.
6what is online entertainment?something entertaining online. e.g apex.
7what is online business?selling and marketing online.
8what is download services?download is the transmission of a file from one computer system to another.
9what is VLE?a system for delivering learning materials to students via the web.
10what is ppc?ppc is when someone clicks on an ad and the person who owns the ad gets money.
11why do companies advertise online?used to drive traffic to your site and build brand awareness.
12name 4 types of online advertisement.ppc, banners, pop ups and email.
13how can online adverts be annoying?they can interrupt what you are doing.
14what is online communities?a community online.
15what is a network of friends?A network of friends is something that people use to talk to other people.
16what is a virtual world?A virtual world is a computer-based simulated environment which may be populated by many users who can create a personal avatar.
17what is a blog?an online journal.
18what is a micro blog?a social media site to which a user makes short, frequent posts.
19what is a chatroom?an area on the Internet or other computer network where users can communicate, typically one dedicated to a particular topic.
20what is a wiki?a website or database developed collaboratively by a community of users, allowing any user to add and edit content.
21what is a podcast?a digital audio file made available on the Internet for downloading to a computer or mobile device, typically available as a series, new installments of which can be received by subscribers automatically.
22what is a instant chat?Instant messaging technology is a type of online chat that offers real-time text transmission over the Internet.
23what is netiquette?the correct or acceptable way of using the Internet
24what is a profile?an outline of something, especially a person's face, as seen from one side.
25what is a avatar?an icon or figure representing a particular person in a video game, Internet forum, etc.
26what is VoIP?VoIP is the technology that converts your voice into a digital signal, allowing you to make a call directly from a computer, a VoIP phone, or other data-driven devices.
27what is the equipment required for VoIP?For VoIP with a computer, you'll need… a laptop or desktop computer with an internet connection, the right software, and either a headset or speakers and a microphone.
28what are the advantages of VoIP?accessibility is one of the biggest benefits of VoIP for business. One distinct advantage cloud-based VoIP service offers is the ability to make calls from anywhere. If you have a decent data connection, you can make and receive calls for your business.
29what are the disadvantages of VoIP?Voice Quality.
Extra Expensive Features.
hard to see body language.
different time zones.
30what is ubiquitous computing?Ubiquitous computing is a concept in software engineering and computer science where computing is made to appear anytime and everywhere. In contrast to desktop computing, ubiquitous computing can occur using any device. such as cars with push buttons, phones with step detectors and consoles
31what is a RFID chips?Radio-frequency identification uses electromagnetic fields to automatically identify and track tags attached to objects. such as a cloth rail (bar code), delivery trucks (to see how far away they are and if there is traffic they will tell them to avoid it)
32what is cloud computing?the practice of using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer. such as google drive and goconqr.
33what are the benefits of cloud computing?Scalability Business continuity Collaboration efficiency Flexibility of work practices Access to automatic updates Also consider.
34what are the drawbacks of cloud computing?Network Connection Dependency. In order to reap the benefits of cloud computing, your business must always have an internet connection. ...
Limited Features. Not all cloud providers are created equally. ...
Loss of Control. ...
Security. ...
Technical Issues.
35what are advantages of online software?Online software is better in more or less every way to traditional desktop versions, with it being more accessible, cheaper, always current with the most advanced versions and easy to set up with excellent support to go with it.
36what are disadvantages of online software?these drawbacks can be categorized into five areas: security, limitations, dependence, continuance and opportunity costs. With installed software, organizations keep intellectual property and data stored inside their own firewalls.
37what is meant by backup and restore?Backup and recovery refers to the process of backing up data in case of a loss and setting up systems that allow that data recovery due to data loss.
38what are advantages of standalone software?One advantage of a standalone computer is damage control. For example, if something goes wrong, only the standalone will be affected. Simplicity is another advantage, because it takes a lot less expertise to manage one computer than it does to setup or troubleshoot several.
39what are disadvantages of standalone software?Standalone computers have drawbacks. First of all, users are restricted to a single computer. On a network, users can access their files from any connected computer. Second, the same software cannot be installed simultaneously.
40describe file compression?File compression is a data compression method in which the logical size of a file is reduced to save disk space for easier and faster transmission over a network or the Internet. It enables the creation of a version of one or more files with the same data at a size substantially smaller than the original file.
41describe the benefits file compression?Compression of files offer many advantages. ... Files that are smaller in size will result in shorter transmission times when they are transferred on the Internet. Compressed files also take up less storage space. File compression can zip up several small files into a single file for more convenient email transmission.
42describe the role of the index?In most cases, an index is used to quickly locate the data record(s) from which the required data is read. In other words, the index is only used to locate data records in the table and not to return data.
43describe what an algorithm is?An algorithm (pronounced AL-go-rith-um) is a procedure or formula for solving a problem, based on conducting a sequence of specified actions. A computer program can be viewed as an elaborate algorithm. In mathematics and computer science, an algorithm usually means a small procedure that solves a recurrent problem.
44what are advantages of collaborative working?Increased creativity and out-of-the-box thinking. Greater innovation is one of the clearest advantages of collaborative working. ...
More flexibility in project direction. ...
Increased learning possibilities. ...
Higher employee productivity. ...
Greater geographical spread. ...
Enhanced stakeholder relationships.
45what is the importance of version control and how can it be used?Version control helps teams solve these kinds of problems, tracking every individual change by each contributor and helping prevent concurrent work from conflicting. Changes made in one part of the software can be incompatible with those made by another developer working at the same time.
46what are the levels of access?In computer science and computer programming, access level denotes the set of permissions or restrictions provided to a data type. Reducing access level is an effective method for limiting failure modes, debugging time and overall system complexity.
47what is file permission?Most file systems have methods to assign permissions or access rights to specific users and groups of users. These permissions control the ability of the users to view, change, navigate, and execute the contents of the file system.
48what is a server?a computer or computer program which manages access to a centralized resource or service in a network.
49what is a client?(in a network) a desktop computer or workstation that is capable of obtaining information and applications from a server.
50what is a router?A router is a networking device that forwards data packets between computer networks.
51what is a backbone?a backbone is a large fiber optic cable connects to a number devices in the core of the internet.
52What is a ISP?short for Internet service provider.
53what is the internet?a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.
54what is Point of presence?A point of presence (PoP) is an artificial demarcation point or interface point between communicating entities.
55network diagram uno.
56network diagram dos.
57what is a dial up connection?Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network to establish a connection to an Internet service provider by dialing a telephone number on a conventional telephone line.
58what is the advantages of a dial up connection?1) Everyone has a phone line, Dial up connection is available to everyone with a computer and a modem (including built-in modem). 2) Dial up may be the only choice available for rural or remote areas where broadband connection is not available. 3) Low cost.
59what is the disadvantages of a dial up connection?It has slow transfer speeds and so it can take very long time to download or upload files. You cannot use the phone while using the internet. It is too slow to successfully view video files.
60what is broadband?In telecommunications, broadband is wide bandwidth data transmission which transports multiple signals and traffic types. The medium can be coaxial cable, optical fiber, radio or twisted pair.
61what is the advantages of a broadband?A good broadband connection to your home means there's a greater capacity to send and receive data. It means that data be received and sent far more quickly to and from your computer. This allows you to access the Internet, browse the web more effectively, download files faster and send and receive emails quicker.
62what is the disadvantages of a broadband?High monthly fee compared to dial up internet access. 2. Higher security risk than dial up connection. A personal firewall is needed to protect your computer.
63what is a wireless connection?A wireless network is a computer network that uses wireless data connections between network nodes. Wireless networking is a method by which homes, telecommunications networks and business installations.
64what is the advantages of a wireless connection?Using a wireless network can increase productivity for a lower cost. Because of the increased mobility, employees can collaborate and share information wherever they need to and even take action in meetings instead of just taking notes and doing it later.
65what is the disadvantages of a wireless connection?File-sharing transfer speeds are normally slower with wireless networks than they are with cabled. The speeds can also vary considerably according to your location in relation to the network. The general speed of a wireless connection is also usually much slower than a wired one.
66what is bandwidth?a range of frequencies within a given band, in particular that used for transmitting a signal.
67bandwidth table.
68what is http?The Hypertext Transfer Protocol is an application protocol for distributed, collaborative, hypermedia information systems.
69what is https?Hypertext Transfer Protocol Secure is an extension of the Hypertext Transfer Protocol. It is used for secure communication over a computer network, and is widely used on the Internet. In HTTPS, the communication protocol is encrypted using Transport Layer Security, or, formerly, its predecessor, Secure Sockets Layer.
70what is ftp?The File Transfer Protocol is a standard network protocol used for the transfer of computer files between a client and server on a computer network. FTP is built on a client-server model architecture using separate control and data connections between the client and the server.
71what is tcp?The Transmission Control Protocol is one of the main protocols of the Internet protocol suite. It originated in the initial network implementation in which it complemented the Internet Protocol. Therefore, the entire suite is commonly referred to as TCP/IP.
72what is ip?An Internet Protocol address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two main functions: host or network interface identification and location addressing.
73what is a protocol?the official procedure or system of rules governing affairs of state or diplomatic occasions.
74how hyper links work.
75the three parts of an URL.
76search engine diagram
77whats a search engine?a program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.
78what is the client side?Client-side refers to operations that are performed by the client in a client–server relationship in a computer network.
79what is the server side?Server-side refers to operations that are performed by the server in a client–server relationship in a computer network.
80what is a web crawler?A Web crawler, sometimes called a spider or spider bot and often shortened to crawler, is an Internet bot that systematically browses the World Wide Web, typically for the purpose of Web indexing.
81what is a index?Web indexing (or Internet indexing) refers to methods for indexing the contents of a website or of the Internet as a whole. Individual websites or intranets may use a back-of-the-book index, while search engines usually use keywords and metadata to provide a more useful vocabulary for Internet or onsite searching.
82what is a database?a structured set of data held in a computer, especially one that is accessible in various ways.
83what is a sponsored link?A paid advertisement in the form of a hypertext link that shows up on search results pages.
84what are online advertsOnline advertising, also called online marketing or Internet advertising or web advertising, is a form of marketing and advertising which uses the Internet to deliver promotional marketing messages to consumers.
85what is online search popularity?it is how many hits or times people click on that particular link/website
86what is store and forward?gmail will store some of your information so there is less data used in your hard drive. you can also forward emails.
87what is a contact group?A contact group is a set of email addresses that you can use to send an email message or meeting invitation to everyone at once. To create a contact group, see Create a contact group.
88what does cc stand for?carbon copy.
89what does bcc stand for?blind carbon copy.
90what are the benefits of email?Email is a free tool. Email is quick. Email is simple. Email allows for easy referencing. Email is accessible from anywhere – as long as you have an internet connection. Email is paperless, and therefore, beneficial for the planet. Email allows for mass sending of messages.
91what are the disadvantages of email?Information overload. Spam. Sucks up Your Time.
92email diagram.
93what is SMTP?The Simple Mail Transfer Protocol is a communication protocol for electronic mail transmission. As an Internet standard,
94what is IMAP?In computing, the Internet Message Access Protocol is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection. IMAP is defined by RFC 3501.
95what is POP 3?In computing, the Post Office Protocol is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a mail server. POP version 3 is the version in common use.
96what is webmail?Webmail is any email client implemented as a web application running on a web server. Examples of webmail software are Roundcube and SquirrelMail. Examples of webmail providers are AOL Mail, Gmail, Outlook.com/Hotmail.com, Rackspace Email, Yahoo! Mail and IceWarp Mail Server.
97what is an email client?An email client, email reader or more formally mail user agent is a computer program used to access and manage a user's email.
98data packet diagram.
99what is packet switching?a mode of data transmission in which a message is broken into a number of parts which are sent independently, over whatever route is optimum for each packet, and reassembled at the destination.
100what are the advantages of packet switching?Efficient use of Network.
Easily get around broken bits or packets.
Circuit Switching charges user on the distance and duration of connection but Packet Switching charges users only on the basis of duration of connectivity.
High Data Transmission in a Packet Switching is very easy.
101what are the disadvantages of packet switching?In Packet Switching Packets arriving in wrong order.
Takes Transmission delay.
Requires Large amount RAM (Random Access Memory) to handle large amount of data communication in packets.
Switching Nods required more procession power to reconstruct packets.
102what are codecs?a codec is a compressing data to make a transmission faster method.
103what is simplex?simplex is a one way transmission system for example TV remote to a computer.
104what is half duplex?of a communications system or computer circuit allowing the transmission of signals in both directions but not simultaneously.
105what is duplex?of a communications system or computer circuit allowing the transmission of signals in both directions simultaneously.
106what is a serial transmission?an 8 bits for one byte can only be sent at 1 time over a wire. good over long distances but it is very slow.
107what is a parallel transmission?multiple bytes can be sent at one time very fast but bad at long distances.
108what are benefits for unshielded twisted pair?cheaper to buy
109what are benefits for shielded twisted pair?doesn't interfere with any other signals on devices
110what is infrared connection?is a light that sends data when shown to the other device. one example of this is a tv and a remote.
111what are the benefits for infrared connection?The battery used in infrared devices last for long duration due to lower power consumption.
112what are the drawbacks infrared connection?In monitor & control application, it can control only one device at one time.
113what is Bluetooth?a wireless connection to connect multiple devices.
114what is an satellite?an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.
115what is an benefits of a satellite?Satellite communications can operate independently from terrestrial infrastructure. When terrestrial outages occur from man-made and natural events, satellite connections remain operational.
116what are the drawbacks of a satellite?Slow speeds are the biggest disadvantage associated with satellite Internet. The signal must reach the satellite almost 22,000 miles away and return back to earth with the requested data. also they are very expensive.
117what is network interface card?a hardware component without which a computer cannot be connected over a network.
118what is network access point?A Network Access Point was a public network exchange facility where Internet service providers connected with one another in peering arrangements. The NAPs were a key component in the transition from the 1990s NSFNET era to the commercial Internet providers of today.
119what is client side processing?Client side processing means that the web page gets the client - your computer - to do the validation and other processing itself, rather than the server. There are several common languages for this kind of processing code. The one you will need to know about is JavaScript.
120what are the advantages client side?the speed is faster on the client side when browsing and its secure.
121what are the disadvantages client side?it is browser specific and the computer could be slow.
122what is server side processing?processing data at the 'back end' on the web server.
123what are the advantages server side?powerful servers, no browser involved and efficient.
124what are the disadvantages server side?security and overloading.
125what is an database?a database is a structured collection of data
126what is a database table?a table stores a set of data e.g. details of all the children in a school.
127what is a database field?a field are the Columns in a table e.g. forename, surname, gender, date of birth.
128what is a database record?a record is one row that stores data about a single item e.g. a student's details.
129what is a primary key?the primary key is a special field with a unique identifier e.g. a student ID
130what is a foreign key?its purpose is to link to the supplier table.
131what is a database relationship?most databases need more than one table to store all the data.
132textany kind of characters including numbers and letters
133numericnumber values
134date/timeany dates and times
135booleanone or two values, such as yes/no or true/false.
136online databaseonline means that it can be accessed anywhere.
137key field diagram.
138what is an online database?means a database that could be accessed around the world
139what is a local databasemeans a database is held inside a network to keep is secure.
140one feature of a online databaseone feature of a online database is a website
141one feature of a local databasestores
142...
143threats to data.
144how to protect data.
145virusupdate anti-virus
146opportunistlock doors and log out when not on electronics.
147malware.don't click on any suspicious links.
148phishingdon't respond to suspicious emails
149accidental damageback ups
150hackersdon't use the same password for everything.