Chapter 7 Flashcards
Mobility in information technology means the ability to access information electronically from different locations outside home or office.
Mobility
Laptops are portable computers that usually run on full versions of Microsoft Windows, iOS, or Linux.
They have the same computing power and memory as desktop computers.
They come with an integrated screen, keyboard, and pointing device which is usually a touchpad.
Laptop Characteristics
They run special operating systems designed for mobile devices.
They may have limited OS upgradability and can require the purchase of a new model to take advantage of the latest OS apps and features.
Smartphone Characteristics
Most smartphones include GPS functionality
They can also tether or share the cellular data connection with other devices
Smartphone Features
Tablets also run special mobile operating systems like iOS or Android
They have wifi and bluetooth capability but most tablets don’t have the ability to access cellular networks.
They also have bigger screens than smartphones.
E readers have black and white displays that have been optimized for reading text.
They lack most features found in tablets and smartphones.
Tablets and E-readers
Wearables are smart devices that are meant to be worn
on the body or attached to clothing.
Smartwatches and Fitness Trackers
In Augmented Reality (AR), computer graphics are
integrated with what is seen in the real world.
In Virtual Reality (VR), a user wears a special
headset which displays graphics from a separate
computer.
Augmented and Virtual Realities
Laptops don’t use desktop size motherboards because they need specially sized motherboards made for laptops.
Laptop Motherboards
RAM – Laptops use Small Outline Dual In-line Memory Modules (SODIMM)
CPUs – Laptop processors are designed to use less power and create less heat than desktop CPUs
SATA drives- Laptop storage devices are typically 1.8in or 2.5in in width.
Solid-state drives – Laptops use SSD drives for high performance, small size, and low power
consumption.
Laptop Internal Components
The purpose of the Function (Fn) key is to
activate a second function on a dual-purpose
key.
Special function key
Commonly uses Twisted Nematic (TN) or In-Plane switching (IPS).
Liquid crystal display (LCD)
Uses less power and has a longer lifespan than LCD.
Light emitting diode (LED)
Used commonly for mobile devices and digital cameras.
Organic light emitting diode (OLED)
Some laptops permit the touchscreen to be used like a tablet when the display is
detached.
Detachable screens
Laptops with touchscreens have a special glass attached to the front of the screen
known as a digitizer.
Touch screens
