Internet Flashcards
FTP
File Transfer Protocol
FTP is a standard set of rules (1) that have been established to allow the exchange of (large) files over the internet (1)
URL
Uniform Resource Locator
- –Fastest method of finding a web page.
- –Typed directly into the address bar.
- –Must know exact address.
Web Crawlers
Software used by search engine to search through all headers of web pages. It collects key terms and stores them in a database.
Boolean searches
Used to reduce the result from a search. E.g. AND, OR, NOT
Hyperlinks
- –Used to surf from one page to another.
- –Keeps within topic area.
- –Can be with the original website.
Define: Internet
The Network of Networks
FTP Uses
—Used for uploading a database of information from surveys from one area to the head office (example must refer to context).
—To send account information between the company and their customers.
—Used for down/uploading a website from/onto the Internet/server.
—(1) Transfer files from mac to pc.
FTP Advantages
—You are not limited to file size (unlike with email attachments)
—Allows reliable transfer of files between platforms
—Greater security in transfer of information
—Can have greater control of remote computer (if well developed).
Dial-up Advantages
—Dialup can be used on a phone line (access anywhere in world, including remote places)
—If only a light user, dialup might be cheaper, as you only have to pay when you are using it
Dial-up Disadvantages
—Using a dialup modem is very slow and limits its use/ a download on dialup can take hours compared to download on broadband.
—Can’t use internet whilst using phone.
Broadband Advantages
—Broadband’s fast download time means that you can use it to listen or watch films or music.
—Broadband does not tie up your phone line. (you can use it whilst using internet)
—Search engines work faster with broadband so takes less time to find information.
—Broadband can make cheap calls via the internet
—Broadband makes video conferencing possible.
—Broadband allows more devices/computers to be connected to the internet at the same time.
Broadband Disadvantages
—Broadband not available everywhere.
—Pay a monthly subscription whether you use it or not.
Wi-Fi Advantages
—Allows inexpensive LANs to be set up without cables
—Allows people the freedom of working anywhere a signal can be received
—Ideal for networks in old listed buildings where cables would not be allowed to be installed
—Global set of standards - you can use Wi-Fi all over the world
—Can use a variety of devices such as tablets, mobile phones, etc
—Health and safety - tidier desktop with no trailing cables.
Wi-Fi Disadvantages
—Power consumption is high - which means laptops soon exhaust their rechargeable batteries .
—There may be health problems in using Wi-Fi
—There may be security problems even when encryption is used
—Wi-Fi networks have a very limited range (e.g. 150 ft)
—Can get interference if wireless network signals start to overlap
—Transmission speed slower than cable
Mobile Access Advantages
—Can access e-mail, surf the internet from wherever you are (on the move)
—Can work more productively because you can do things at once, without having to go back to the office
—Can easily modify your plans- flights, trains, hotels
—Increase in real time collaborative working/ video conferencing/ voice conferencing
—Can work anywhere in the home or office (teleworking)
