TECHNOLOGY 

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Computer Science - Smartphones
Nowadays, the majority of us travel with smartphones. These smartphones have strong computational capabilities as well. Actually, the desktop computers we used ten years ago were much less powerful than the smartphones we use now. Smartphones have unique operating systems that they use. While the majority of other devices use Google's Android operating system, iPhones run Apple's iOS.



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Computer Science - Laptops
With the main advantage of being incredibly portable, laptop computers are remarkably comparable to the desktop computers that once occupied every office and cubicle. They consolidate all of the computer's parts, such as the keyboard, trackpad, and monitor, into a single unit that is portable. Additionally, laptops have batteries that enable them to function for hours without requiring an electrical connection. The power of a contemporary laptop can rival that of a desktop computer. The one drawback is that laptops are usually more expensive than desktop computers, and most laptop users also want a full-sized monitor on their desk, which raises the whole cost of their workspace.


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Computer Science - Servers
There exists an additional kind of nonportable computers that warrants your attention. Servers are robust computers designed to perform a certain purpose. Companies may utilize servers for internal file sharing, internet hosting, database management, or several other services. It suffices to recognize that servers are robust computers usually located in specialized data centers designed to accommodate numerous servers in dedicated racks.


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Computer Science – Secure Digital Cards
Secure Digital (SD) cards represent a proprietary format of flash storage and possess the unique design illustrated in Figure 7.4. SD cards are predominantly utilized for storage in cameras, tablet computers, and various portable gadgets owing to their compact dimensions.


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Computer Science – External Flash Drives
External flash drives employ identical technology to solid-state drives, albeit in a portable format. Flash drives are relatively economical, although they possess a restricted storage capacity in comparison to solid-state drives. Figure below illustrates an example of a flash drive featuring a USB interface.



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Computer Science- Solid-State Drives
Solid-state drives (SSDs) serve as a contemporary substitute for magnetic drives. Rather than employing rotating magnetic disks, they utilize stored electric charges and has no moving components. This renders SSDs less prone to failure and enables them to operate more swiftly than magnetic drives; nonetheless, these advantages have a financial expense: Solid-state SSDs are costlier than magnetic drives.
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Computer Science - Magnetic Hard Drives
Certain nonvolatile storage is localized to a computer system. We have already discussed the utilization of magnetic hard disk drives (HDDs). Magnetic drives offer cost-effective storage that is comparatively sluggish. Magnetic hard drives have platters of magnetic material that rotate rapidly within the computer, while a head reads and writes magnetic charges onto the disk. Consequently, magnetic hard drives are frequently referred to as spinning disk drives.


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Computer Science - Non-Volatile Storage
Nonvolatile storage refers to lasting storage. Nonvolatile storage exists in several formats, although they all share the fundamental trait that data remains intact after being written, persisting until deletion, regardless of power status. Nonvolatile storage drives are measured in two distinct manners. A standard computer often possesses hard drives or solid-state drives with storage capacities of 500 GB, 1 TB, or greater. Secondly, we assess the velocity at which storage devices can record and access data. This is quantified using the unit known as input/output operations per second (IOPS). Read-only memory (ROM) exemplifies nonvolatile storage.



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Computer Science – Volatile Storage
Volatile storage refers to storage intended for transient use. The predominant instance of volatile storage is the random access memory (RAM) located on the computer's motherboard. RAM is exceedingly rapid, although it is also rather costly. RAM encompasses all data that a computer is currently processing. Nonetheless, it is volatile storage; so, the contents of RAM persist only while the computer is powered on. When the computer is powered off, the contents of RAM are deleted upon rebooting. A standard desktop or laptop computer typically possesses 8–32 GB of RAM, although more robust systems and servers might include hundreds of gigabytes of RAM.


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Computer Science - Internet of Things
Contemporary devices encompass more than simply laptops, desktops, and smartphones; they also integrate computing technology. Nearly all objects in our environment today incorporate embedded computers and are linked to the Internet. These technologies may autonomously procure groceries for our residences when supplies are depleted, optimize our heating and cooling expenses according to meteorological predictions, or even regulate our irrigation systems.
The phrase Internet of Things (IoT) refers to the connectivity of several ordinary objects to the Internet. These devices typically utilize wireless networking, facilitating their placement across our homes and enabling connectivity to web interfaces or home automation systems that manage their operations.

Residential Internet of Things Devices
We can integrate many gadgets into an IoT network. Home equipment, including refrigerators, stoves, and washing machines, are capable of connecting to the Internet. Modern refrigerators can prompt you to purchase milk or facilitate its delivery when supplies are dwindling. The washing machine may contact your preferred e-commerce store to reorder detergent on your behalf. It can also dispatch a text message to remind you to transfer the load to the dryer upon completion. Within our residences, we may possess various home automation devices, such as a smart thermostat, an Internet-connected security system featuring IP-enabled cameras, streaming media devices that access online content, home assistants, smart deadbolts and locks, video doorbells, exercise equipment, or even IoT vehicles capable of acquiring navigation instructions, relaying maintenance status to the dealer, or providing entertainment content to passengers. A multitude of IoT devices can be remotely operated using smartphone applications.

Internet of Things Devices in the Workplace
The Internet of Things significantly influences the workplace, especially in industrial environments. The numerous technological advancements that have accelerated manufacturing, power plant monitoring, wastewater treatment, and other industrial processes necessitate the utilization of computers. Industrial control systems (ICSs) are the devices and systems that regulate industrial output and operations. They encompass systems that oversee electricity, gas, water, and other utility infrastructures and production operations, in addition to systems that regulate sewage processing, irrigation, and other processes. IoT devices contribute significantly to contemporary healthcare. Nearly all medical devices in hospitals are now networked to enhance patient care, and patients may now utilize insulin pumps, blood pressure monitors, and other gadgets at home that can relay their medical status to their physician. The Internet of Things is a remarkably potent technology that permeates nearly every aspect of our lives, enabling us to harness the capabilities of contemporary computers to enhance our quality of life. As IT experts, we are tasked with integrating these devices into the network, overseeing their management, and implementing appropriate security measures to safeguard critical information.





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