Security

Ransomware attack locks down US prison

A ransomware attack locked down a US jail, knocking out security cameras and leaving inmates confined to their cells, court documents show.

Security

Group: Pandemic tech tools raise risk of everyday tracking

Tech tools like digital contact tracing apps and artificial intelligence that European governments rolled out to combat COVID-19 failed to play a key role in solving the pandemic and now threaten to make such monitoring widely ...

Electronics & Semiconductors

Impaired-driver sensor could pave the way for safer vehicles

The bipartisan infrastructure bill recently signed into law by President Joe Biden includes a requirement for automakers to install driver monitoring systems that detect intoxicated or impaired drivers. Current systems rely ...

Software

Apps for popular smart home devices contain security flaws

New cybersecurity research from Florida Tech has found that the smartphone companion applications of 16 popular smart home devices contain "critical cryptographic flaws" that could allow attackers to intercept and modify ...

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Camera

A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.

Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.

A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.

This text uses material from Wikipedia, licensed under CC BY-SA