Mobile Devices

The location of memory stored within a laptop

Small Outline Dual In-line Memory Module (SO-DIMM)

The three different interfaces for storage on a laptop

Traditional spinning drive platter (HDD), Solid-state drive (SSD) and M.2

The two methods for transferring storage from a HDD to an SSD

1. Downloading an OS on the SSD and transferring all of the documents manually from the HDD to SSD

2. Using imaging software either on the SSD or from another source to take an image on one drive at a time or both drives at the same time.

The names of the two components that can provide wireless networking in a laptop.

Mini peripheral component interconnect (PCI) and Mini PCI Express

Differentiate LAN from PAN

A local area network (LAN) is often through a standardized 802.11 which provides high speed internet access. A personal area network (PAN) provides connection within a short range for peripherals and other devices. PAN is the technical term for what Bluetooth is.

Name two biometrics and their requirements on a laptop

Face recognition and fingerprint recognition are two forms of biometrics that require additional configuration within the OS and hardware to recognize the biometric.

What is an NFC

An NFC is defined as a near-field communication which allows authentication without contact. NFC is common on mobile phones and smart watches.

What is an LCD

A liquid crystal display (LCD) is a flat-panel display that uses liquid crystals with polarizers to electronically display images.

Name the four types of LCD displays

1. Twisted nematic (TN) with fast response times

2. In plane switching (IPS) with great color representation

3. Vertical alignment (VA) compromises response time and color

4. Organic light emitting diode (OLED) uses an organic compound to produce light

Name the two types of backlights

1. Cold cathode fluorescent lamp (CCFL) which take up more power and are no longer used

2. LED-backlit display

What is a digitizer

A device that converts analog input into graphical outputs. For example, a touchscreen.

What is the name of the connector for a wired headset

Tip-ring-ring-sleeve connector (TRRS). These are often adapted to a USB for easier connection.

What are port replicators

Stations similar to docking stations that are used to connect laptops or other devices. Port replicators are usually smaller than docking stations.

Name the two original cellular technologies during the 2G era

Global System for Mobile Communications (GSM) and Code Division Multiple Access (CDMA)

What are the two main cellular providers under the GSM?

AT&T and T-Mobile (Both used Subscriber Identity Modules or SIM cards)

What are the two main cellular providers under the CDMA?

Verizon and Sprint

In 1998 with 3G, what new technologies were available with better bandwidth and speeds?

GPS, mobile television, and video on demand

Describe the improvements granted with the introduction of 4G

Long Term Evolution (LTE) converged the GSM and CDMA standards. LTE was based on GSM and Enhanced Data Rates for GSM (EDGE). Some locations also had LTE advanced or LTE-A

What were the impacts of 5G?

5G improved speeds up to 10 Gb/s and allows the Internet of Things (IoT) to have more capabilities.

How are cellular devices and communications updated?

One method of updating networks is through Preferred Roaming Lists (PRLs) in CDMA networks that connect to the most convenient tower.

How many satellites are needed for a mobile device to use GPS?

Four satellites are needed at a minimum to find the location of a cellular device

Name a way in which companies can manage their workers with their devices

Mobile Device Management (MDM) allows companies to regulate passwords, authentication, emails, apps, and many more aspects of a mobile device for the company’s interests

What are three examples of cloud-based mobile device services commonly used today?

Microsoft 365, Google Workspace, and iCloud. These services can be configured to share only certain amounts of data at certain times.