An Apple MacBook can last some time without the keyboard getting damaged. If the keyboard gets damaged (for e.g. a loose key falls out of the setting) or the user simply wants a new keyboard, he/she will need to replace the keyboard in question. The MacBook has a fairly simple case that users with the correct tools can service.
Input Devices
How to Lock a Keyboard
Many people install security features on their computer in order to prevent unauthorized users from accessing the computer when they are away. For example, login identification, file encryption, and even biometric identification are all sufficient methods of keeping intruders out of someone’s personal information.
What is an Ultrasonic Flow Meter?
An ultrasonic flow meter emits an ultrasonic signal through a liquid and receives the echoes that are reflected off of air bubbles and other discontinuities within the liquid in order to determine the liquid’s speed through its container.
What is an EMF Detector?
An EMF (Electromagnetic Frequency) detector is a small, portable device that detects electromagnetic fields. It is very common in industries that involve electricity or electromagnetic fields and is also an important tool used in ghost-hunting.
Occupancy Sensors
An occupancy sensor is a device that is capable of detecting and/or recording the amount of people in a room or area. Occupancy sensors are most often used to determine how many people are in an area that may restrict the total occupancy or in a system that turns lights/other accessories off when no one is using them.
What is a Pressure Transmitter?
A pressure transmitter or pressure sensor is a device that measures pressure in a liquid, fluid, or gas. Pressure transmitters are commonly used to measure pressure inside of industrial machinery in order to alert the user before a catastrophe occurs. They have many different uses, most of which are industrial or automotive in nature.
What is a Biometric Coprocessor?
A biometric coprocessor is a device that is capable of scanning a user’s physical attributes in order to allow access to a building or computer network. A biometric coprocessor is essentially a fingerprint reader, but may also include sensors that analyze the user’s eyes, voice, or even breath.
Throttle Position Sensor
A throttle position sensor is a device that can detect a difference in throttle position. The Engine Control Unit (ECU) uses throttle position sensors in internal combustion engines to gauge the throttle’s position as well as the rate of change in the throttle’s position in order to relay this information to other devices in the engine.
Fingerprint Reader
A fingerprint reader is a device that uses electricity or light to analyze a person’s fingerprint. Fingerprint readers are now commonly used in the security industry to authenticate an individual before he/she is permitted to access a system or device.
Flatbed Scanner – Pros and Cons
A flatbed scanner is a device that is able to scan a document and then convert what it has read into digital information.