Όμως η αλήθεια είναι πως τις περισσότερες φορές για τη ραγισμένη ή σπασμένη οθόνη ευθύνεται ο χρήστης. Μία λάθος κίνηση και το  iPhone8 μπορεί να βρεθεί πεσμένο στο έδαφος και σπασμένο. Η μια λύση για να αλλάξετε την οθόνη σας είναι να την στείλετε στην Αpple και αφού γίνει εκεί ο απαραίτητος έλεγχος η εταιρεία να προχωρήσει σε αντικατάσταση με μια καινούρια αυθεντική οθόνη  iPhone 8 ή  iPhone 8 Plus.

Εναλλακτικά υπάρχουν και στην Ελλάδα εταιρείες που αναλαμβάνουν την αλλαγή οθόνης για το  iPhone8 σας σε καλές τιμές. Μερικές μικρές συμβουλές για να επιλέξετε ένα καλό εργαστήριο είναι οι παρακάτω:

• χρήση των αυθεντικών προϊόντων της Apple για iPhone8 και το iPhone8 Plus
• διαγνωστικός έλεγχος
• σωστά εξοπλισμένο εργαστήριο

Αλλαγή οθόνης δεν απαιτείται μόνο εάν αυτή είναι σπασμένη ή ραγισμένη. Μπορεί να σας παρουσιαστεί ένα από τα παρακάτω προβλήματα όπως νεκρό σημείο, μη απόκριση της οθόνης αφής, κάθετες ή οριζόντιες γραμμές, άνοιγμα εφαρμογών χωρίς να τις έχετε επιλέξει, μαύρη ή λευκή οθόνη κ.α. Πριν αλλάξετε την οθόνη σας έχετε στο μυαλό σας όλα τα παραπάνω για να μην βρεθείτε προ εκπλήξεων και πληρώσετε ακριβά μια φθηνή οθόνη.

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In 1999, the Japanese firm NTT DoCoMo released the first smartphones to achieve mass adoption within a country. Smartphones became widespread in the 21st century and most of those produced from 2012 onwards have high-speed mobile broadband 4G LTE, motion sensors, and mobile payment features. In the third quarter of 2012, one billion smartphones were in use worldwide. Global smartphone sales surpassed the sales figures for regular cell phones in early 2013. As of 2013, 65% of U.S. mobile consumers own smartphones. By January 2016, smartphones held over 79% of the U.S. mobile market.

Devices that combined telephony and computing were first conceptualized by Nikola Tesla in 1909 and Theodore Paraskevakos in 1971 and patented in 1974, and were offered for sale beginning in 1993. Paraskevakos was the first to introduce the concepts of intelligence, data processing and visual display screens into telephones. In 1971, while he was working with Boeing in Huntsville, Alabama, Paraskevakos demonstrated a transmitter and receiver that provided additional ways to communicate with remote equipment, however it did not yet have general purpose PDA applications in a wireless device typical of smartphones. They were installed at Peoples’ Telephone Company in Leesburg, Alabama and were demonstrated to several telephone companies. The original and historic working models are still in the possession of Paraskevakos.

«It is the prerogative of wizards to be grumpy. It is not, however, the prerogative of freelance consultants who are late on their rent, so instead of saying something smart, I told the woman on the phone, «Yes, ma’am. How can I help you today?»
— Jim Butcher (Storm Front (The Dresden Files, #1))

In the late 1990s, many mobile phone users carried a separate dedicated PDA device, running early versions of operating systems such as Palm OS, BlackBerry OS or Windows CE/Pocket PC. These operating systems would later evolve into mobile operating systems. In March 1996, Hewlett-Packard released the OmniGo 700LX, which was a modified 200LX PDA that supported a Nokia 2110-compatible phone and had integrated software built in ROM to support it. The device featured a 640×200 resolution CGA compatible 4-shade gray-scale LCD screen and could be used to make and receive calls, text messages, emails and faxes. It was also 100% DOS 5.0 compatible, allowing it to run thousands of existing software titles including early versions of Windows. 

In August 1996, Nokia released the Nokia 9000 Communicator which combined a PDA based on the GEOS V3.0 operating system from Geoworks with a digital cellular phone based on the Nokia 2110. The two devices were fixed together via a hinge in what became known as a clamshell design. When opened, the display was on the inside top surface and with a physical QWERTY keyboard on the bottom. The personal organizer provided e-mail, calendar, address book, calculator and notebook with text-based web browsing, and the ability to send and receive faxes. When the personal organizer was closed, it could be used as a digital cellular phone. In June 1999, Qualcomm released a «CDMA Digital PCS Smartphone» with integrated Palm PDA and Internet connectivity, known as the «pdQ Smartphone».

In early 2000, the Ericsson R380 was released by Ericsson Mobile Communications, and was the first device marketed as a «smartphone». It combined the functions of a mobile phone and a PDA, supported limited web browsing with a resistive touchscreen utilizing a stylus. In early 2001, Palm, Inc. introduced the Kyocera 6035, which combined a PDA with a mobile phone and operated on Verizon. It also supported limited web browsing. In 2002, Handspring released the Treo 180, the first smartphone to combine Palm OS and a GSM phone, with telephony, SMS messaging and Internet access fully integrated into Palm OS.Smartphones before Android, iOS and BlackBerry, typically ran on Symbian, which was originally developed by Psion. It was the world’s most widely used smartphone operating system until the last quarter of 2010.

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A laptop combines the components, inputs, outputs, and capabilities of a desktop computer, including the display screen, small speakers, a keyboard, pointing devices (such as a touchpad or trackpad), a processor, and memory into a single unit. Most 2016-era laptops also have integrated webcams and built-in microphones. Some 2016-era laptops have touchscreens. Laptops can be powered either from an internal battery or by an external power supply from an AC adapter.

Hardware specifications, such as the processor speed and memory capacity, significantly vary between different types, makes, models and price points. Design elements, form factor, and construction can also vary significantly between models depending on intended use. Examples of specialized models of laptops include rugged notebooks for use in construction or military applications, as well as low production cost laptops such as those from the One Laptop per Child organization, which incorporate features like solar charging and semi-flexible components not found on most laptop computers.

In terms of the technology I use the most, it’s probably a tie between my Blackberry and my MacBook Pro laptop. That’s how I communicate with the rest of the world and how I handle all the business I have to handle.

John Legend

Portable computers, which later developed into modern laptops, were originally considered to be a small niche market, mostly for specialized field applications, such as in the military, for accountants, or for traveling sales representatives. As portable computers evolved into the modern laptop, they became widely used for a variety of purposes.
As the personal computer  became feasible in 1971, the idea of a portable personal computer soon followed. A «personal, portable information manipulator» was imagined by Alan Kay at Xerox PARC in 1968, and described in his 1972 paper as the «Dynabook». The IBM Special Computer APL Machine Portable  was demonstrated in 1973. This prototype was based on the IBM PALM processor. The IBM 5100, the first commercially available portable computer, appeared in September 1975, and was based on the SCAMP prototype.

As 8-bit CPU machines became widely accepted, the number of portables increased rapidly. The Osborne 1, released in 1981, used the Zilog Z80 and weighed 23.6 pounds . It had no battery, a 5 in  CRT screen, and dual 5.25 in  single-density floppy drives. In the same year the first laptop-sized portable computer, the Epson HX-20, was announced. The Epson had an LCD screen, a rechargeable battery, and a calculator-size printer in a 1.6 kg (3.5 lb) chassis.

Both Tandy/RadioShack and HP also produced portable computers of varying designs during this period. The first laptops using the flip form factor appeared in the early 1980s. The Dulmont Magnum was released in Australia in 1981–82, but was not marketed internationally until 1984–85. The US$8,150 GRiD Compass 1101, released in 1982, was used at NASA and by the military, among others. The Gavilan SC, released in 1983, was the first computer described as a «laptop» by its manufacturer.

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