Darkening computer privacy screens work in a similar manner, but they completely block light that leaves the screen at an angle. This causes the screen to become progressively darker as the viewing angle increases, until there is no visible image at all. Similar to blurring filters, some darkeni...
At its core, a computer’s job is to process data and produce a given output, based on intermediary programs. The system allows you to type on your keyboard and see letters appear on the screen or tap on your phone and have apps open up. Theseamless interactionbetween hardware and softwar...
A computer virus inserts itself into a host program to copy itself and spread through networks of devices. Spyware is designed to sit undetected on each device it infects. Some types of viruses can bring spyware along for the ride as they spread. But that’s not the only way to contract...
A computer virus is a type ofmalwarethat attaches itself to other programs, self-replicates, and spreads from one computer to another. When a virus infects a computer, it makes copies of itself and attaches to other files or documents. It then modifies those files and continues to spread. ...
touch screen What is a touch screen? A touch screen is an electronic display screen that is also an input device. A user interacts with the computer,tablet,smartphoneor touch-controlled appliance by using hand gestures and fingertip movements to tap pictures, moving elements or type words on ...
A personal computer (PC) is a microcomputer designed for use by one person at a time. Prior to the PC, computers were designed for -- and only affordable for -- companies that attached terminals for multiple users to a single largemainframecomputer whose resources were shared among all users...
When someone requests access to the device location, the device locks and a message appears on the lock screen to explain what's happening. For information about supervision, which is another type of configuration for corporate-owned Apple devices, see Get started with a supervised ...
By definition, a tablet is a highly portable PC whose primary interface is a touch screen that occupies the full length/width of the device but whose speaker and microphone are not positioned for hand-held calling. In popular perception, however, tablets simply combine the best aspects of smart...
a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. think of it like a virtual barrier between your computer and the internet; it helps to block malicious software or hackers from gaining access to your ...
Acomputerisanelectronicdevicethatstores,retrieves,andprocessesdata,andcanbeprogrammedtocarryoutsequencesofarithmeticorlogicaloperationsautomatically DevelopmentHistory Computershaveevolvedrapidlysincetheirinceptioninthe1940sEarly computerswerelarge,expensive,anddifficulttoprogramHowever,advantagesintechnologyhaveledtothe...