Presentation technology are tools used to assist in
conveying information during a presentation. When a
speaker is verbally addressing an audience it is often
necessary to use supplementary equipment and media to
clarify the point. If the audience is large or the speaker is
soft-spoken, a public address system may be employed.
Google Drive is a file storage and
synchronization service created by Google.
It allows users to store files in the cloud,
synchronize files across devices, and share
Google gives every user 15 GB of free Drive storage
space, which is shared across files in Google Drive,
messages and attachments in Gmail, and pictures
and videos in Google Photos. Users can purchase
additional storage space through either a monthly or
yearly payment. The option of yearly payments was
introduced in December 2016, and is limited to the
100 GB or 1 TB storage plans. Furthermore, the yearly
payments offer a discount.
Google Drive incorporates a system of file
sharing in which the creator of a file or
folder is, by default, its owner. The owner can
regulate the public visibility of the file or
folder. Ownership is transferable. Files or
folders can be shared privately with
particular users having a Google account,
using their @gmail.com email addresses.
Evernote is a cross-platform, freemium app
designed for note taking, organizing, and
archiving. The app allows users to create a
"note" which can be a piece of formatted text, a
full webpage or webpage excerpt, a
photograph, a voice memo, or a handwritten
Dropbox is a file hosting service, that offers cloud
storage, file synchronization, personal cloud, and client
software. Dropbox creates a special folder on the
user's computer, the contents of which are then
synchronized to Dropbox's servers and to other
computers and devices that the user has installed
Dropbox on, keeping the same files up-to-date on all
devices. Dropbox uses a freemium business model,
where users are offered a free account with a set
storage size, with paid subscriptions available that offer
more capacity and additional features. Dropbox Basic
users are given 2 GB of free storage space. Dropbox Pro
users are given 1 TB of storage space, as well as
additional features, including advanced sharing
controls, remote wipe, and an optional Extended
Version History add-on.
The Dropbox software enables users to drop any file into a designated folder.
The file is then automatically uploaded to Dropbox's cloud-based service and
made available to any other of the user's computers and devices that also
have the Dropbox software installed, keeping the file up-to-date on all
systems. When a file in a user's Dropbox folder is changed, Dropbox only
uploads the pieces of the file that have been changed, whenever possible.
When a file or folder is deleted, users can recover it within 30 days. For
Dropbox Pro users, this recovery time can be extended to one year, by
purchasing an "Extended Version History" add-on.
Dropbox also offers a LAN sync feature, where, instead of receiving
information and data from the Dropbox servers, computers on the local
network can exchange files directly between each other, potentially
significantly improving synchronization speeds.