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Tech Terms you Must Know : Systems

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Systems

CACHING

Caching is what happens when a web browser stores recurring website assets—like images and font styles—so that the website will load faster on repeat visits from the same user. By caching, your browser won’t have to reinvent the wheel every time the site is requested.

CLOUD COMPUTING

Cloud computing is a practice where data is not stored locally on your own computer, but instead is spread out among a number of remote servers accessible through the internet. Service like Google Docs, Facebook, and Gmail are examples of cloud computing—you are interacting with data on your home computer that is stored externally in “the cloud.”

FIREWALLS

Firewalls are systems designed to protect and secure a computer network—everything from a commercial web service to your home WiFi network—from external security risks. Firewalls monitor inbound and outbound network traffic and determine whether or not to allow the traffic through based on a user-defined set of security standards.

ROUTERS

Routers are the devices used to connect personal computers to the internet via a service provider like cable or DSL. The device that your computer is either directly connected to via an ethernet cable or that you use to access your home WiFi network is a router.

UPTIME & DOWNTIME

Uptime and downtime describes how long a website, computer, or other system has been working (uptime) or not working (downtime).

VIRTUAL MACHINE (VM)

Virtual machine is software that makes it possible to use one computer operating system (like Windows 10) on a computer running another system (like a MacBook Pro). Examples include Virtual Box, Parallels, and VM Ware.

VPN (VIRTUAL PRIVATE NETWORK)

VPNs are networks that allow public internet connections to be used as private networks as a means of improving security. When you use a public WiFi network, for instance, your device and data are theoretically accessible by everyone else on the network. When using a VPN, you’re still able to access the internet through the public network, but are shielded by the VPN. VPN’s can be set up through some web browsers (like Opera), or can be accessed through paid monthly services.
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