Smartphone and telephone: external and functional differences. Smartphone - what is it? For Dummies
Good day, friends!
Today you won’t surprise anyone with a mobile phone that can take photographs, access the Internet, shoot high-quality video, work with documents, etc. Moreover, progress does not stand still, and even wristwatches, for example, iWatch (Apple), can already do most of these functions. But how can you figure it all out if you previously had a regular mobile phone without all this, which could simply make calls and send/receive SMS? This is what we will talk about in today's article - about smartphones.
So, what is a smartphone, what functions does it have, and also what you need to pay attention to in order to choose the “right” smartphone and be satisfied with your gadget.
Smartphone(English Smartphone, “smart phone”) - supplemented with the functionality of a pocket personal computer (PDA).
Smartphone functions
The main functions of the smartphone are:
— Internet access;
— functions of photo/video shooting, as well as voice recorder;
— audio/video playback of recordings;
— reading electronic books, various documents;
— work with e-mail;
— GPS navigator;
— All kinds of records: memos, contact information, lists, databases.
— Typing, programming.
— All kinds of games;
— Working with office applications;
— Control of various electronic devices: projector, DVD player, and much more.
— Of course, making calls, SMS, MMS has not gone away;
— Stopping other programs that turn your smartphone into a mini-computer.
Disadvantages of a smartphone
- Sometimes sizes. For example, it is not very convenient to use a smartphone with one hand that has a screen of 5 inches or more;
— Most smartphones run out of battery very quickly. Some of them need to be charged literally once a day, or even more often.
— You need to be careful when using smartphones. Large screens often stop working when dropped, and... They have touch controls, so even making a call won’t work. I remember the Nokia 3310, in terms of indestructibility there is no comparison. 🙂
— Smartphones are more sensitive to the environment in which they operate. For example, if the temperature is sub-zero, the screens literally freeze and the phone literally refuses to work. If humidity is high, condensation may form under the glass.
— Application developers want to know almost everything about you. When you install a program, it asks you to allow access to everything possible, from your contacts in the phone book, SMS, call duration to your location. I suspect that the developers of both smartphones and applications for them do not even officially open everything to the average user.
— I don’t know whether you noticed or not, but when you enter a subway car you can see that a huge number of people are constantly on their phones, and if you look at some statistics, you can conclude that modern gadgets develop addiction in people. I will say that sometimes it is useful to take a walk in nature without electronics.
— People far from technology will find it more difficult to understand the menu. After all, even to just make a call you no longer need to press 1-2 buttons, but go here and there.
Of course, each person chooses for himself what is an advantage and what is a disadvantage in a smartphone, so you can continue the rest of the list yourself, for example, in the comments to the article. 😉
Characteristics of smartphones
After our first acquaintance with smartphones, let's move on to studying their characteristics and figure out how to choose a smartphone?.
1. Manufacturer. Oddly enough, but unlike most other equipment, it is better to start choosing a smartphone by choosing the manufacturer. This, firstly, is a guarantee of the quality and durability of the device. Secondly, the performance of the gadget. After all, as you know, with the same technical characteristics, devices can differ radically in operating speed.
The leaders among smartphones are: Apple, Samsung, HTC, Lenovo, Nokia, Sony, LG.
2. Number of SIM cards. With today's variety of mobile operators, as well as their conditions, many users have 2-3 or more SIM cards. Previously, we simply opened the back cover of the phone and changed them. Now you can buy a phone into which you can insert 2 SIM cards at once, and make/receive calls at the most advantageous rate for us.
Conclusion: If you are economical, it is better to take a phone with 2 SIM cards.
3. Display. The smartphone screen has several characteristics:
- Screen diagonal. Buy a smartphone with a display that will fit more comfortably in your hand. I have a 5-inch smartphone, but I also have a big hand. It’s already extremely inconvenient for my wife to use my phone.
— Matrix type. The most popular are AMOLED, super AMOLED and IPS. Moreover, some people like one option, others another. Personally, I prefer IPS.
- Screen resolution. The higher the screen resolution, the better. Firstly, watching high-resolution videos is much more pleasant, and secondly, the quality and clarity of displaying documents, photos, websites, games and other applications will be much higher.
— Protecting the display from dust and moisture getting inside;
— Special glass that protects the screen from scratches
Conclusion: It is better to buy a smartphone with a diagonal of 4-5 inches, IPS, with a resolution of 960*540 (the optimal average option is 1280*720), and a surface protected from moisture and scratches.
4. Processor (CPU). All modern smartphones, like computers, have their own “brain,” which is technically called a “processor.” There are 1, 2, 4, 8 processors, and I think in the future there will be 16 or more core ones. The more cores, the faster and more stable the smartphone will perform several tasks simultaneously.
Processors also have a clock speed. The higher it is, the faster the phone thinks.
Conclusion: It is better to purchase a phone, if possible, with a processor of 4 cores from 1.2-1.5 GHz.
5. Random access memory (RAM). RAM affects the speed of all applications, especially dynamic ones, such as games or watching high-resolution movies. Most mid-range smartphones have 1GB of RAM, but I won’t be mistaken if I say that for active smartphone users this is the minimum.
Conclusion: It is best to purchase a smartphone with RAM 1.5-2 GB or higher.
6. Permanent (built-in) memory. This is actually an indicator of how much information you can store on your smartphone. The more, the better, of course, because... from year to year, and sometimes more often, programs, videos and other applications take up more and more space. If there is little memory, you will need to delete something before you can write anything.
Conclusion: It is better to purchase a smartphone with internal memory of at least 8-16 GB
7. Internet connection. Connecting a smartphone to the Internet can be done using 3G/4G modules, standard means of mobile operators, or using a Wi-Fi module.
The cheapest method is Wi-Fi (wireless networks). Places with free access to the Internet using Wi-Fi are only growing from year to year, these are airports, McDonald's, parks, hotels, etc. Where I live, there is free Internet even on the Dnieper embankment, although there are no establishments relatively nearby. Great technology. All smartphones have a Wi-Fi module, but pay attention to what type of connection it has. Standards are: a, b, c, g, n, ac. “a” is the slowest Internet and the shortest range of the wireless network, “ac” is the largest. The more connection types, the more versatile the smartphone, i.e. it can be connected to almost any Wi-Fi network.
3G. If you use the Internet via a 3G module, the connection speed is higher, and the price for the service is lower than the means of connecting to the network with standard functions of mobile operators.
4G. The Internet is much faster than the 3G standard, but also more expensive.
Conclusion: Choose a smartphone with Wi-Fi a/b/c/g/n/ac, 3G/4G.
8. Camera. Today, there are smartphones with 1 or 2 cameras (one front, one rear). If you often communicate with someone via Skype, then not only will you be able to see your interlocutor, but he will also be able to see you.
Photo. In addition, cameras are characterized by their shooting resolution, which is measured in pixels. The more megapixels, the larger and better the photos are. Of course, there are exceptions, if, for example, the cost is cheap Chinese or “basement” optics.
As for the front camera, i.e. the one that is located on the front side of the phone, then it does not need to have a very high resolution, because High-resolution video is difficult to transmit over the Internet, and most likely, if the Internet is not of very high quality, your interlocutor will not see you.
Video. Video quality is also affected by camera resolution, quality of optics, and hardware features. Please ensure that your smartphone can record video at a resolution, preferably FullHD (1920*1080). This is due to the fact that most modern TVs and monitors display images with this resolution. Then your video will be clear and play beautifully on modern information display devices.
By the way, I would like to note that premium phones can already shoot video at 4K resolution (4096×3112). True, TVs with this resolution are sold for well over 100,000 UAH (from 11,000 USD)
Conclusion: The optimal resolution of the main camera is 8 megapixels, the front one is 2.
9. Battery. Battery capacity is measured in mAh (mAh). The higher this indicator, the longer the period of time you will not need to charge the device. Most smartphones have a battery capacity from 1800 to 3500 mAh.
10. GPS. The presence of a GPS navigation system in devices (satellite navigation system) is now difficult to underestimate. You can go anywhere in the world, and if you have maps installed on your smartphone, a GPS navigator will help you find your way out.
There is also A-GPS technology, which allows you to determine your location more quickly and accurately. The disadvantage is that A-GPS additionally uses an Internet connection for geopositioning, which actually makes this service “paid”.
Glonass- Soviet/Russian satellite navigation system, developed by order of the USSR Ministry of Defense. In practice, Glonass is an analogue of GPS, the only thing is that communication with satellites is more stable.
In addition, most smartphones can also be equipped with a compass.
However, it is advisable to be able to navigate the terrain without electronics. After all, the ability to recharge a phone in extreme conditions is not always possible.
Conclusion: It is better to purchase a smartphone with GPS and Glonass functions.
11. Operating system (OS). Early mobile phones had standard firmware with the standard functions required for a regular mobile phone: calling, SMS, MMS, phone book, calendar, alarm clock, a couple of “light” games and a few more functions. But, keeping up with the times, manufacturers decided to expand the functionality of phones, and operating systems for smartphones were born.
The most popular operating systems for smartphones today are iOS, Android and Windows Mobile. It's all a matter of everyone's taste. I will only note that iOS is used only in Apple products.
Conclusion: Pay attention to the OS version. If the version is outdated, then this may indicate that this smartphone model is outdated.
12. Possibility to expand internal memory. This can be done using an additional flash drive. When choosing a flash drive, pay attention to its class. The higher it is, the faster information is read/written on it, and the faster the flash drive will work.
Conclusion: Buy a flash drive of at least 32 GB and at least class 10.
13. Design. Choose only a design that you really like. Fortunately, the variety is great, and if not, then “dress” your phone in some interesting case.
Additional functions of smartphones
Depending on the manufacturer, smartphones have many additional functions, for example:
- FM receiver;
— Ability to connect additional devices (Gear watches that measure heart rate monitor, accelerometer, calling/receiving calls and much more);
— fingerprint activation;
— LED flash;
— video editor;
- standard sets of calendar, alarm clock, weather, and much more.
Which smartphone to choose?
Based on the above, a smartphone with the following characteristics would be excellent:
4.5-5 inches IPS (1920*1080)/ RAM 1.5-2Gb/16-32Gb internal memory/Wi-Fi a, b, c, g, n, ac/Bluetooth 4.
Everything else is at your discretion.
How much does a smartphone cost?
- A smartphone with minimal characteristics can be purchased for about 100-120 USD.
- Average level – 200-250 USD
- Top-tier smartphones cost from 500 USD.
On this note, perhaps that's all. Have you forgotten anything? If so, remind me in the comments.
I wish you success, dear readers, in purchasing the best smartphone that will always make you happy!
Although the era of “smart” mobile communication devices has long arrived for many, some are still asking the question: “What is a smartphone?” Indeed, when a person comes to a store to buy a mobile phone, he cannot always understand what kind of devices are on display: smartphones, regular cell phones, or compact ones (PDAs).
After all, that ephemeral line that once separated one class of devices from another has practically disappeared, and manufacturers are gradually unifying their products. A striking example is the mass products of Chinese industry, which outwardly copy models such as, for example, Samsung Galaxy smartphones, but differ significantly in characteristics and capabilities. To understand what is hidden under the definition of a “smart” phone, let’s take a little mental journey into the past.
Cellular mobile phone
The ability to talk at a distance using a telephone marked the beginning of a new era. Further improvement of the idea led to the emergence of fairly compact wireless communication devices. The infrastructure - the system and the corresponding network - appeared and developed. It was then that mobile phones began to appear on sale. In essence, their functions were similar to their wired counterparts, but voice and data transmission was carried out using radio waves.
As a nice addition, manufacturers began to include in devices the ability to perform simple mathematical calculations (calculator) and view the days of the week (calendar).
Laptop computers
Without mentioning the PDA, it is impossible to answer the question “smartphone - what is it?” In parallel with mobile phones, another branch of compact devices existed and developed - pocket computers. An enlarged screen, much more powerful computing units, some multimedia functions - this is what a PDA is. These devices are much closer to laptops than to mobile phones, although due to their size they are often compared to the latter. One of the differences was the presence of an operating system in the PDA, which allows you to install appropriate programs that expand the capabilities. Subsequently, GSM units were added to these devices, which gave them the capabilities of mobile phones. This is how “smart” phones appeared.
For example, you can already buy smartphones from Samsung and some other companies that have a powerful architecture installed; RAM, the volume of which is measured in gigabytes; improved sound reproduction systems and touch display.
Smartphone - what is it?
As already mentioned, any such device must be running one of the well-known operating systems. Thus, the presence on board of the operating system Windows Mobile (or Phone), Linux, Android, iOS, Bada or BB OS, as well as a SIM card unit, automatically means that this device is a smartphone. That is, a kind of mini-computer with the capabilities of a mobile phone. Considering the question “smartphone - what is it,” one cannot help but recall the numerous models of mobile phones in which you can only install applications written in Java. There are quite a few such solutions among Chinese copies of well-known smartphone models. These are mobile phones whose functions are expanded. Although they have their own operating system, it is strictly “tied to the hardware” and is narrowly focused on performing a certain range of tasks.
The world's first smartphone - Ericsson R380s
The term "smartphone" was coined in 2000 by Ericsson. With this name, the manufacturer decided to highlight the new Ericsson R380s model, which, in comparison with others, was really smart. The Ericsson R380s had a flip-out keyboard that covered half of the unusually large monochrome screen. The device, weighing about 169 g, immediately after its appearance on the market cost more than $1,000, but when the hype subsided after 2-3 months, you could buy it in Moscow for about $650.
The 950 mAh battery of the world's first smartphone lasted for 2-3 days with 20-30 minutes of calls daily. It even synchronized with a PC and allowed data to be archived for later recovery. 1.2 MB of memory was dynamically distributed between various types of information (SMS, phone numbers, entries in the organizer, etc.). The device even allowed you to create your own midi melodies to set for calls and displayed a touch-screen keyboard for this that supports pen input. By the way, the buttons were also touch sensitive - when the flip keyboard was in the closed position, pressing them actually involved pressing the screen and transmitting the coordinates of the desired area.
However, formally the first smartphone in terms of functionality was the IBM Simon, introduced in 1993. You could see him in the movie “Network”. The device, in addition to standard mobile phone functions, had a calendar, calculator, notepad for handwritten notes, email support, a touch screen (there was no physical keyboard) and PCMCIA memory cards. However, the term “smartphone” did not yet exist.
The first smartphone with a color screen - Nokia 9210
A year after the release of the monochrome Ericsson R380s, a smartphone with a color screen appeared on the market. Nokia 9210 was supplied in two boxes at once: one contained the device itself, the other contained accessories for it, in particular, a cable for synchronizing with a PC and a 16 MB MMS card.
Nokia 9210 had two screens - monochrome external and color internal; There were also two keyboards - an external digital one for dialing numbers and selecting options in the menu, as well as an internal QWERTY one, designed for working with the device in smartphone mode. The clamshell form factor was implemented in an unusual way - folding was done along the long side, and not along the short side, as in models that are still in production. Note that it was Nokia 9210, and not , that was the world's first smartphone with two screens.
You could even connect the Concord Q Eye camera to the Nokia 9210, which took pictures with a resolution of 640x480 pixels and allowed you to store up to 12 photos in memory. To operate the camera, a separate set of batteries (2 AA types) was used, which was enough for 20 shots. The smartphone itself had the ability to record a conversation on a voice recorder, view call lists with maintaining and exporting logs, browsers for Internet surfing and using WAP, and the Word application for editing documents. On the CD included with the device, the manufacturer offered 20 more programs that could be installed on the Nokia 9210, in particular, Real Player for watching videos.
The first smartphone with optical zoom – Sharp V602SH
In 2004, the first smartphone with a camera with optical zoom was introduced to the market. 2x zoom for a two megapixel camera seemed unrealistic. Digital zoom provided 40x magnification, but only for pictures with a resolution of 120x160 pixels. In addition, the Sharp V602SH was able to record video at a speed of 15 frames per second, and the clips could be viewed on a TV by connecting it to a smartphone via the video output. Note that the iPhone has not yet received optical zoom, although it is probably available in the 6s and 6s Plus models.
The Sharp V602SH was developed specifically as a camera phone, so it inherited from cameras a color display with a resolution of 240x320 pixels, rotating 180 degrees in the vertical plane. He could take photos even when folded. In addition, the smartphone had a compact single-line monochrome screen with a resolution of 12x72 pixels. The 6 MB built-in memory was enough to store 1200 photos of minimum resolution, but the Sharp V602SH supported the installation of SD cards.
The first smartphone on Android OS - HTC Dream
On October 22, 2008, the American mobile operator T-Mobile opened sales of the world's first smartphone running on the Google Android platform. The HTC Dream, which was sold in carrier stores as the T-Mobile G1, was previously also known as the HTC Omni and retailed for $179, subject to a carrier contract. By the way, the first official Android smartphone in Russia was HTC Hero.
The number of pre-orders for HTC Dream within a month was three times higher than the manufacturer's expectations. In six months, more than a million devices were sold in the United States alone. There were two versions of the smartphone - a tivoized one without access to the firmware and the ability to download unofficial versions, and a non-tivoized Android Dev Phone 1 - with an open OS and not tied to a SIM card (however, its price was $399; in addition, registration was required to order on Android Market – another 25 dollars).
However, compared to its predecessors, the HTC Dream looked very impressive. In addition to Android 1.6, its advantages included a Qualcomm 7201 processor with a frequency of 528 MHz, 192 MB of RAM and 256 MB of internal memory, Bluetooth 2.0, miniUSB, Wi-Fi 802.11 b/g, a 3.15 MP camera, support for microSD memory cards. and even a built-in GPS chip. A detachable QWERTY keyboard was included.
Apple's first smartphone - actually, the iPhone
However, the revolutionary smartphone also had a lot of shortcomings: firstly, the iPhone did not support 3G (only EDGE), secondly, it was inferior to BlackBerry communicators in terms of security, and thirdly, it did not have MMS support. Soon Apple released the iPhone 3G with support for 3G networks.
What was inside the first iPhone? Samsung S3C6400 processor with a frequency of 620 MHz, 128 MB of RAM, 1400 mAh battery, 3-axis accelerometer, dual microphone and proximity sensor, as well as a 2 MP camera. The touch screen of the device had a diagonal of 3.5 inches and a resolution of 320x480 pixels. The first iPhone was offered at a price of $499 for the 4 GB version, and for $599 for the version with 8 GB of memory.
The first smartphone with a dual-core processor – LG Optimus 2X P990
In the fall of 2011, the first smartphone with a dual-core processor entered the market - . The device with a 4-inch touch screen with a resolution of 480x800 pixels has a dual-core NVIDIA Tegra 2 processor with a frequency of 1 GHz, an 8-megapixel camera (like and), running Android 2.2. The presence of support for 1080p video (both recording and playback), HDMI on the body and really effective work with “heavy” applications and 3D graphics - according to experts, 30,000 rubles for this is quite an adequate price.
The first quad-core smartphone on the market - LG Optimus 4X HD P880
It is quite logical that the quad-core LG smartphone, which became the first on the market, received a name similar to the previous model. The device is based on an Nvidia Tegra 3 processor with a frequency of 1.5 GHz and includes 1 GB of RAM and 16 GB of storage, as well as 8 MP and 1.3 MP cameras, a 4.7-inch screen with a resolution of 1280x720 pixels, and a removable battery with a capacity of 2150 mAh.
4 months passed between the presentation of LG Optimus 4X and its entry into the market, so at the time sales started, the device became the most affordable quad-core smartphone. Its official price at that time was 24,990 rubles.
First phablet – Galaxy Note
Having received the largest screen among the smartphones that existed at that time, it opened a new segment in the market. Soon, many technical publications began to call such devices phablets from phone - phone and tablet - tablet. Yes, in October 2011, a 5.3-inch diagonal smartphone could have been quite surprising, especially since it had a Super AMOLED touchscreen display with a resolution of 1280x800 pixels.
The device, running Android 2.3, was equipped with a dual-core ARM Cortex-A9 processor with a frequency of 1.4 GHz, 1 GB of RAM and 16 GB of internal memory, an 8-megapixel camera with LED flash and another 2-megapixel front camera, built-in GPS with support A-GPS, as well as a 2500 mAh battery. As you can see, the phablet, the price of which at the start of sales in Russia was 34,990 rubles, is still quite relevant today.
Articles and Lifehacks
Most users who are tech savvy probably know the difference between a phone and a PDA. However, time passes, manufacturers are constantly improving their devices, simplifying the process, and therefore it is difficult for many today to say what is a smartphone and what is it for?. Let's try to answer these questions.
What is a smartphone and what is it for?
Externally, the described device looks like a mobile phone. It has exactly the same standard set of functions, but its interface and versatility can be compared to a desktop computer. At the same time, while having the functions of a PDA, it differs from it in the body and display size.
Most modern smartphones are equipped with a touch screen. The user enters the necessary data using the QWERTY keyboard, which pops up when you press your finger on the empty text field. All smartphones run some operating system (for example, Windows Phone, Android, Symbian, iOS).
The very first smartphone is considered to be the 7650 from Nokia. And today this manufacturer produces high-tech mobile devices of appropriate quality - take, for example, the Nokia Lumia line of devices, which is popular among buyers.
The demand for smartphones is constantly increasing, and they are gradually replacing regular cell phones. When purchasing such a device, you should not neglect the protective equipment - a special adhesive film and cover. The same is important with, which needs protection no less.
So, we figured out what a smartphone is and why each user needs it personally, we’ll look at it below.
Why do you personally need a device like a smartphone?
Many users, accustomed to the simplest push-button phones, are sincerely perplexed about whether it is worth overpaying when buying a device such as a smartphone. At this stage, we’ll figure out whether we need our device only for communication, and how often we suffer in the absence of a desktop computer.
Most often, a buyer purchases a smartphone to perform several tasks at the same time. For example, he uses it not only for communication and exchanging SMS messages, but also for communicating via Skype, on social networks, as a calculator, player, camera, video camera, notebook, etc. In other words, in most cases the device is supposed to be used as a mini-computer. As a result, the user acquires a portable device with a huge range of functions. If desired, it can be used as a web camera, modem, etc.
If comfortable browsing the Internet is one of the priorities when choosing a device, it is recommended to give preference to smartphones with a large screen diagonal and support for all the most important modules, including 3G and Wi-Fi. It is also desirable to have a high battery capacity. It is very convenient to access the network from an Android device.
New technologies today are not about a smartphone. Quite a long time ago, namely in the last decade of humanity, smartphones already appeared on store shelves, and by the end of the decade they had completely conquered the market of mobile communication devices. Every person who lives today must meet the requirements of the modern world. A powerful mobile communication device is one of these requirements. Let's figure out what a smartphone is.
Smartphone - a modern means of communication
What is a smartphone? A smartphone is a mobile phone. However, it is much more powerful than a regular mobile communication device. A smartphone usually has a huge number of functions that are not found in a regular phone. Today it is convenient and fast to work with the mobile Internet. Many smartphones work with 3G and 4G networks, while regular phones use older networks.
What is an iPhone?
IPhone (popularly “iPhone”) is one of the smartphone models. At the moment, the iPhone is the most convenient and powerful smartphone out there. The iPhone, the brainchild of Apple, has proven itself to be a reliable, efficient and elegant smartphone. There are models that work on 3G networks, and there are models that work on 4G networks. The iPhone is widely represented all over the world, and many people prefer it, despite the impressive cost of the device. The iPhone has all the functions of a regular phone, and it also has a high-definition video and photo camera. The absence of a large number of buttons on the body makes it very convenient and easy to use.
What is a communicator?
Today it is difficult to distinguish a communicator from a smartphone. Why is this happening? The fact is that the communicator is initially a pocket personal computer (PDA). Recently, all communicators have acquired telephone functions. Well, a smartphone is originally a telephone, which, again, has recently achieved the functionality of a pocket personal computer. We can say with confidence that the difference between the two devices is very relative, and the boundaries have long been erased. The current phone is a smartphone that meets all the requirements of a computer and works through an operating system, which we will talk about a little later. Are you planning to buy a smartphone? Then look for a model that includes everything you need.
What is the difference between a smartphone and a telephone?
We briefly touched on this issue in the first paragraph. Let's look at it in a little more detail. So, today the smartphone and the telephone have merged into a single whole and it is difficult to separate them from each other. Many manufacturers, however, are gradually bringing back old traditions and producing phones that are significantly inferior to the parameters of smartphones. This is due to the fact that the consciousness of a modern person comes to the idea that a simple mobile phone is enough for him to communicate. Previously, a regular phone had only the most necessary functions - calls, SMS messages and a notebook. Then smartphones appeared, which offered the consumer a photo and video camera, browsing the Internet, downloading applications and much more.
What is android?
Not a single smartphone, being a smaller copy of a computer, can work without an operating system. An operating system is a specially designed program that manages the components of a computer and its devices. Android (popularly "android") is an operating system. However, along with Android, there are other operating systems for mobile phones, for example, Symbian. Android and Symbian are two competitors in the market of operating systems that serve phone functions. Over the past three years, Apple has entered the competitive race and quickly gained a leading position among all companies operating in the field of computer technology.
