Memory

A memory is just like a human brain. It is used to store data and instructions. Computer memory is the storage space in the computer, where data is to be processed and instructions required for processing are stored. The memory is divided into large number of small parts called cells. Each location or cell has a unique address, which varies from zero to memory size minus one. For example, if the computer has 64k words, then this memory unit has 64 * 1024 = 65536 memory locations. The address of these locations varies from 0 to 65535.

Memory is primarily of three types −

1.Cache Memory

2.Primary Memory/Main Memory

3.Secondary Memory

1.Cache Memory

Cache memory is a very high speed semiconductor memory which can speed up the CPU. It acts as a buffer between the CPU and the main memory. It is used to hold those parts of data and program which are most frequently used by the CPU. The parts of data and programs are transferred from the disk to cache memory by the operating system, from where the CPU can access them.

Advantages

▫️Cache memory is faster than main memory.

▫️It consumes less access time as compared to main memory.

▫️It stores the program that can be executed within a short period of time.

▫️It stores data for temporary use.

Disadvantages

▫️Cache memory has limited capacity.

▫️It is very expensive.

2.Primary Memory (Main Memory)

Primary memory holds only those data and instructions on which the computer is currently working. It has a limited capacity and data is lost when power is switched off. It is generally made up of semiconductor device. These memories are not as fast as registers. The data and instruction required to be processed resides in the main memory. It is divided into two subcategories RAM and ROM.

Characteristics of Main Memory

🔹️These are semiconductor memories.

🔹️It is known as the main memory.

🔹️Usually volatile memory.

🔹️Data is lost in case power is switched off.

🔹️It is the working memory of the computer.

🔹️Faster than secondary memories.

🔹️A computer cannot run without the primary memory.

3.Secondary Memory

This type of memory is also known as external memory or non-volatile. It is slower than the main memory. These are used for storing data/information permanently. CPU directly does not access these memories, instead they are accessed via input-output routines. The contents of secondary memories are first transferred to the main memory, and then the CPU can access it. For example, disk, CD-ROM, DVD, etc.

Characteristics of Secondary Memory

🔹️These are magnetic and optical memories.

🔹️It is known as the backup memory.

🔹️It is a non-volatile memory.

🔹️Data is permanently stored even if power is switched off.

🔹️It is used for storage of data in a computer.

🔹️Computer may run without the secondary memory.

🔹️Slower than primary memories.

⏩ Here it is Completely Explaination about Memory...

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Monitors

▫️Monitors, commonly called as Visual Display Unit(VDU), are the main output device of a computer. It forms images from tiny dots, called pixels that are arranged in a rectangular form. The sharpness of the image depends upon the number of pixels.

▫️There are two kinds of viewing screen used for monitors.⤵️

• 1.Cathode-Ray Tube (CRT)
• 2.Flat-Panel Display
• 
  

1.Cathode-Ray Tube (CRT) Monitor

▫️The CRT display is made up of small picture elements called pixels. The smaller the pixels, the better the image clarity or resolution. It takes more than one illuminated pixel to form a whole character, such as the letter ‘e’ in the word help.

▫️A finite number of characters can be displayed on a screen at once. The screen can be divided into a series of character boxes - fixed location on the screen where a standard character can be placed. Most screens are capable of displaying 80 characters of data horizontally and 25 lines vertically.

▫️There are some disadvantages of CRT −

• 🔹️Large in Size
• 🔹️High power consumption
• 
  

2.Flat-Panel Display Monitor

▫️The flat-panel display refers to a class of video devices that have reduced volume, weight and power requirement in comparison to the CRT. You can hang them on walls or wear them on your wrists. Current uses of flat-panel displays include calculators, video games, monitors, laptop computer, and graphics display.

▫️The flat-panel display is divided into two categories −

• 🔸️Emissive Displays − Emissive displays are devices that convert electrical energy into light. For example, plasma panel and LED (Light-Emitting Diodes).

• 🔸️Non-Emissive Displays − Non-emissive displays use optical effects to convert sunlight or light from some other source into graphics patterns. For example, LCD (Liquid-Crystal Device).

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CPU 🎚

 

Central Processing Unit

The computer's central processing unit (CPU) is the portion of a computer that retrieves and executes instructions. The CPU is essentially the brain of a CAD system. It consists of an arithmetic and logic unit (ALU), a control unit, and various registers. The CPU is often simply referred to as the processor.

➡️Central Processing Unit (CPU) consists of the following features −

🔸️CPU is considered as the brain of the computer.

🔸️CPU performs all types of data processing operations.

🔸️It stores data, intermediate results, and instructions (program).

🔸️It controls the operation of all parts of the computer.

➡️CPU itself has following three components.

🔶️Memory or Storage Unit

🔶️Control Unit

🔶️ALU(Arithmetic Logic Unit)

Memory or Storage Unit

This unit can store instructions, data, and intermediate results. This unit supplies information to other units of the computer when needed. It is also known as internal storage unit or the main memory or the primary storage or Random Access Memory (RAM).

Its size affects speed, power, and capability. Primary memory and secondary memory are two types of memories in the computer.

 Functions of the memory unit are −

▫️It stores all the data and the instructions required for processing.

▫️It stores intermediate results of processing.

▫️It stores the final results of processing before these results are released to an output device.

▫️All inputs and outputs are transmitted through the main memory.

Control Unit

This unit controls the operations of all parts of the computer but does not carry out any actual data processing operations.

Functions of this unit are −

▫️It is responsible for controlling the transfer of data and instructions among other units of a computer.

▫️It manages and coordinates all the units of the computer.

▫️It obtains the instructions from the memory, interprets them, and directs the operation of the computer.

▫️It communicates with Input/Output devices for transfer of data or results from storage.

▫️It does not process or store data.

ALU (Arithmetic Logic Unit)

This unit consists of two subsections namely,

◽Arithmetic Section

◽Logic Section

Arithmetic Section

Function of arithmetic section is to perform arithmetic operations like addition, subtraction, multiplication, and division. All complex operations are done by making repetitive use of the above operations.

Logic Section

Function of logic section is to perform logic operations such as comparing, selecting, matching, and merging of data.

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Types of Keyboard ⌨

Types of keyboards

Most computer users use the standard keyboard, which connects to the computer. Although there are many types of a computer keyboard, such are as follows:

1. Flexible keyboard: 

It is a type of keyboard that is made of soft silicone with highly portable. It is water and dust-resistant and does not require constant cleaning. It acts the same as a standard keyboard and connects to the computer via a USB connection serial port. These types of keyboards can also be more durable in terms of some ways, as compared to a traditional keyboard.

The flexible keyboard is made of soft silicone that saves it from a number of different substances. For instance, if you use the keyboard near the liquid spaces, the silicone skin provides excellent protection against spills. Furthermore, it does not make a sound when being used; that's why it is also called a silent keyboard. These keyboards are useful for traveling time because they can be rolled up into a bag and flexible in outdoorsy situations.

2. Ergonomic Keyboard: 

This type of keyboard is beneficial for your body posture. Instead of adjusting yourself to fit the keyboard, it is designed to fit you easily, ease of use, and reduce strain. It is designed in that way; instead of bending their hands, it allows users to straight their hands. Generally, the space-bar is bigger as compared to a regular keyboard, which allows for fast typing.

3. Wireless Keyboard:

 It is a computer keyboard that is connected to computers, laptops, or tablets without any cables. It uses radio frequency (RF), infrared (IR), or Bluetooth technology to connect with devices. Users can move the wireless keyboard around without having to put it on a desk as it provides portability and flexibility to the users. It is designed by stainless steel material that increases its life for a long time. It can set up very easily by plugging the USB receiver into the computer.

It utilizes light waves to transmit signals to other infrared-enabled devices as it is based on infrared technology. Some wireless keyboards use radio frequency technology, which communicates via signals with a range from 27 MHz to up to 2.4 GHz.

4. Mechanical Keyboard: 

It is made with high quality that commonly used in both home and office. It is designed for long life with high durability and responsiveness. It provides crisp click sound, medium resistance, and better feedback for gaming performance and ultimate typing. It offers framing, switches, type print methods, functionality, PCB board, key construction, LED lighting, or more other better features as compared to traditional rubber dome keyboards.

5. Virtual Keyboard: 

It is a software-based keyboard that enables users to type without the need for physical keys. It is an alternative for a physical keyboard or a digital representation of a QWERTY keyboard. These types of keyboards commonly have many pages of characters, including numbers, letters, punctuation, and symbols. Some virtual

keyboards also include options to insert emojis, stickers, or animated GIFs on the basis of the device's operating system. The devices that contained virtual keyboard are tablets, smartphones, and other portable devices, because these devices do not require the constant use of a physical keyboard.

Examples of virtual keyboards

Gboard: Google created a virtual keyboard for Android and iOS that includes features like GIFs, customizable themes, and translation capabilities.

OSK: It stands for an on-screen keyboard. It is commonly found in Microsoft Windows.

6. Projection Keyboard:

 It is a form of computer input device that can be connected via Bluetooth to the mini PC, tablet computer, or even smartphone. In projection keyboard, the image of a virtual keyboard is projected onto a surface. The device records the corresponding keystroke when a user touches any key from the shown keyboard on the surface. Some devices are connected via Bluetooth devices such as tablets, smartphones, mini-PC with Android, Windows operating system or iOS, etc.

7. Gaming Keyboard: 

A keyboard that contains a few specific keys used for gamers is known as a gaming keyboard. The W, S, D, A, and arrow keys are widely used for games on the standard QWERTY keyboard. Gaming keyboards (mostly mechanical keyboard), the key switches needless depression that provides faster action for games.

Here, it is covered types of keyboard in this BLOG.

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Invention of Keyboard♒

Invention of the first keyboard

There were different types of invention, as well as the typewriter, keypunches, and teleprinters that helped to develop the computer keyboard. In the 1700s, the first writing devices were designed, and Henry Mills filed patented in London, England, in 1714.

Invention of the typewriter

The different typing and writing devices were created around the world in the late 1700s and the beginning of the 1800s. Although, in 1868, Christopher Sholes developed and patented the first practical typewriter and the word Type-Writer that is considered to be the first typewriter.

Additionally, the QWERTY keyboard design was introduced by the Type-Writer, which is still

mainly used on US keyboards today. Samuel W. Soule, Christopher Sholes, and Carlos Glidden created a Type-Writer that picture shown in the below:

In 1878, the first keyboard with a Shift key was invented that had one Shift key on the left side of the keyboard. The Underwood typewriter is considered the first successful modern typewriter, till 1939, five million of its typewriters were sold. The first Underwood typewriter was invented by Franz Xaver Wagner, and on 27 April 1893, he filed to patent the typewriter U.S. patent 523,698. The biggest improvement of Underwood typewriter, it was capable of seeing the writing it was typed. Later in 1895, Franz Xaver Wagner created the Underwood company with the help of John Underwood and introduced its first typewriter in 1896.

Before introducing the IBM Selectric typewriter by IBM on 27 July 1961, typewriters from all manufacturers began to become more alike. Unlike other typewriters, the IBM Selectric typewriter used a typeball, which containing characters that would strike an ink ribbon. Furthermore, this typewriter was sold more than 13 million until 1986.

The invention of keypunch, the telegraph, and teleprinter

Joseph Marie Jacquard developed the Jacquard Loom in the late 1700s, which was expanded by Herman Hollerith with his keypunch inventions in the late 1800s and the beginning of the 1900s.

In 1832, Pavel Schilling invented the first electrical telegraph and to send Morse code messages over a line, allowing for a single key to be used. Later in 1846, a printing telegraph was patented by Royal Earl House, which used 28 piano-style keys. The keys made it easy to send messages by representing each letter in the alphabet. In 1874, the Baudot code was invented by Emile Baudot; later, it was extended by Donald Murray (inventor of thetelegraphic typewriter). Charles Krum helped invent the teleprinter by working to continue on Frank Pearne that was developed from 1902 to 1918. In August 1907, he filed patent U.S. patent 862,402. Also, he filed patent 888,335 in May 1908, and patent 1,286,351 in May 1910.

Early computers with keyboards

After many years, in 1964, the introduction of Multics and video display terminals (VDTs), which enabled users to see typing on the screen what they are typing.

The DataPoint 3300 began to ship by the Computer Terminal Corporation in 1969. It was the first computer terminal designed to replace the teleprinter. Some other versions of this terminal were also introduced as well as HP 2600A, DEC, and VT06. The DataPoint 3300 was a terminal that was able to move the cursor using arrow keys, and it used a screen display to show typed text. Also, it had the ability to clear all text on the screen.

At the beginning of the 1970s, keyboards began to use what we use today. Those keyboards were heavy mechanical or reconstructed electric typewriters from companies such as IBM. Apple, Radio Shack, and Commodore introduced their computers in the late 1970s that come included keyboards. Later, IBM PC and the Model F keyboard introduced by IBM in August 1981.

The Model M keyboard was introduced by IBM in 1986, which contained function keys like today's keyboards have across the top of the keyboard. The Model M is still considered a high keyboard as it has a standard US layout with 101-key, which is used for full-sized keyboards today. It is also designed for windows keyboards that have 104-key with the Menu keys and windows keys.

Since IBM introduced the Model M keyboard, many changes have been in the keyboard that is in use today. A membrane helps to manufacturer computer keyboards easily and reduce manufacturing costs. Furthermore, the membrane keyboard makes the keyboard lighter, thinner, and quieter as compared to the first mechanical keyboards.

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What Is Keyboard ?

 KEYBOARD

A keyboard is a peripheral device that enables a user to input text into a computer or any other electronic machinery. A keyboard is an input device and is the most basic way for the user to communicate with a computer.

A keyboard is one of the primary input devices that allows users to input text into a computer or any other electronic machinery. It is a peripheral device that is the most basic way for the user to communicate with a computer. It consists of multiple buttons, which create numbers, symbols, and letters, and special keys like the Windows and Alt key, including performing other functions. The design of the keyboard comes from the typewriter keyboards, and numbers and letters are arranged on the keyboard in that way, which helps to type quickly.

The above keyboard design is called QWERTY design because of its first six letters across in the upper-left-hand corner of the keyboard. Although the keyboard design is derived from the typewrites, nowadays, it also includes many other keys as well as Alt/Option, Control, and Windows key can be used as shortcuts to perform the particular operation by combination with other keys. For example, if you press Control + S while working on a document in Microsoft Word, it will save the document you are working on. Furthermore, most of the keyboards have function keys (F1 to F12 or F16) at the top of the keyboard and arranged arrow keys in the downside used to perform numerous functions.

There are many type of keyboard in today's world. That we have to see in next BLOG.

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 COMPUTER

A computer is a programmable device that stores, retrieves, and processes data. The term "computer" was originally given to humans (human computers) who performed numerical calculations using mechanical calculators, such as the abacus and slide rule. The term was later given to mechanical devices as they began replacing human computers. Today's computers are electronic devices that accept data (input), process that data, produce output, and store (storage) the results (IPOS).

Topic's are covered in this BLOG👇

Computer overview

History of the computer

How are computers used today?

What components make up a desktop computer?

What parts are needed for a computer to work?

Computer connections

Types of computers

Who makes computers?

Computer overview

Below is a picture of a computer with each of the main components. You can see the desktop computer, flat-panel display, speakers, keyboard, and mouse in the picture below. We've also labeled each of the input devices and output devices.

History of the computer

The first digital computer and what most people think of as a computer was called the ENIAC. It was built during World War II (1943-1946) and was designed to help automate the calculations being done by human computers. By doing these calculations on a computer, they could achieve results much faster and with fewer errors.

Early computers like the ENIAC used vacuum tubes and were large (sometimes room size) and only found in businesses, universities, or governments. Later, computers began utilizing transistors and smaller and cheaper parts that allowed the ordinary person to own a computer.

How are computers used today?

Today, computers do jobs that used to be complicated much simpler. For example, you can write a letter in a word processor, edit it anytime, spell check, print copies, and send it to someone across the world in seconds. All these activities would have taken someone days, if not months, to do before. Also, these examples are a small fraction of what computers can do.

What components make up a desktop computer?

Today's desktop computers have some or all the components (hardware) and peripherals below. As technology advances, older technologies, such as a floppy disk drive and Zip drive (shown below), are no longer required or included.

Optical drive: Blu-ray, CD-ROM, CD-R, CD-RW, or DVD.

CPU (processor)

Floppy disk drive

Hard drive

Keyboard

RAM (random access memory)

Microphone

Monitor, LCD, or another display device.

Motherboard

Mouse

Network card

Power Supply

Printer

Sound card

Speakers

Video card

Wearable

What parts are needed for a computer to work?

A computer does not require all the components mentioned above. However, a computer cannot function without having at the very minimum the parts listed below.

Processor - Component that executes instructions from the software and hardware.

Memory - Temporary primary storage for data traveling between the storage and CPU.

Motherboard (with onboard video) - Component that connects all components.

Storage device (e.g., hard drive) - Slower secondary storage that permanently stores data.

However, if you had a computer with only the minimum parts above, you would be unable to communicate with it until you connected at least one input device (e.g., keyboard). Also, you would need at least one output device (e.g., monitor) for you to see what is happening.

Computer connections

All computers have different types of connections. An example of the back of a personal computer and brief descriptions of each connection is found on our computer connections page.

Types of computers

Computers can be classified as one of three types of computers: a general-purpose computer, special-purpose computer, or specialized computer.

A general-purpose computer is what most people think of when thinking about a computer and is what this page covers.

A special-purpose computer is embedded in almost all electronic devices and is the most widely-used computer. This computer is designed for a specific task and is found in ATMs, cars, microwaves, TVs, the VCR, and other home electronics. See our special-purpose computer page for further information and examples.

A specialized computer is like a general-purpose computer but is designed only to perform one or a few different tasks. See our specialized computer for further information and examples of these computers.

When talking about a computer or a "PC," you're usually referring to a desktop computer found in a home or office. However, the lines of what makes these computers are blurring. Below are different examples of what's considered a computer today.

The picture above shows several types of computers and computing devices and is an example of their differences. Below is a complete list of general-purpose computers of past and present.

Who makes computers?

Today, there are two types of computers: the PC (IBM compatible) and Apple Mac. Many companies make and build PCs, and if you get all the necessary parts for a computer, you can even build a custom PC. However, with Apple computers, only Apple designs and makes these computers. See our computer companies page for a listing of companies (OEMs) that make and build computers.

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What Is Laptop💻

 What is a laptop?

A laptop, sometimes called a notebook computer by manufacturers, is a battery- or AC-powered personal computer (PC) smaller than a briefcase. A laptop can be easily transported and used in temporary spaces such as on airplanes, in libraries, temporary offices and at meetings.

A laptop can be turned into a desktop computer with a docking station, which is a hardware frame that supplies connections for peripheral input/output devices such as a monitor, keyboard and printer.

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Types of laptops

Differences in these core components are what distinguish laptop computers. Some core characteristics of laptops are the following:

Size. 

One of the key points of a laptop is portability. Smaller laptops are lightweight and easier to carry. A bigger laptop offers a bigger screen size.

Screen resolution.

Higher resolution liquid crystal display or LCD screens display sharper graphics and increase the usable viewing area. High pixel density displays are becoming increasingly popular.

Processing power. 

Laptop processors have two, four or eight cores and, because of that, vary in performance.

Memory.

 Typically, laptop random access memory (RAM) is 4, 8 or 16 GB. The most common RAM is 8 GB, and memory is often soldered to the motherboard.

Input. 

Laptops often have a built-in microphone, video camera and various input ports, such as Lightning, HDMI and USB ports. Some companies have gradually reduced the number of ports on the laptop body. Laptops use several different approaches for integrating a mouse into the keyboard, including touch pads, trackballs and pointing sticks.

Durability. 

Laptops vary in durability; some are designed for use in rugged conditions.

Design. 

Laptop designs and accompanying marketing terms vary. Notebooks, netbooks and subnotebook types denote different laptop sizes. New laptops, such as hybrid and convertible ones, feature displays that detach from the computer and function as touchscreen tablets.

Accessories.

Various laptop accessories -- such as a detachable keyboard or a second touchpad -- can influence purchasing decisions.

Battery life. 

Laptops are battery-powered, as well as having power adapters to plug into a power source. Batteries vary among laptops, and battery life can also influence buyers.

 5 Things to Consider When Buying Headphones 🎧

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Are you on the market for a new pair of headphones or earbuds? If you haven’t purchased any lately, you might be surprised to see all the options. Truly, the marketplace is filled with variety — and confusion.

To help you get a better sense of what to look for in your next pair of earbuds or headphones, we’ve created a down-to-earth headphone buying guide. Get started on the path to the perfect headphones with a little help on buying tips and hints.

1. Would Wired or Wireless Be Better?

Some people love to have the freedom of wireless earbuds and headphones. Others prefer having units that connect to their iPhones or other devices. While one won’t necessarily outperform the other, wireless models do tend to be very convenient. However, you should realize that with wireless earbuds, you’ll need to carefully store them so they aren’t separated.

2. Do You Care About Bass and Treble Balance?

Is sound quality important to you? Do you like to hear music that sounds as if it’s being played right in front of you? If so, you might want to check out the balance between the bass and treble on earbuds and headphones. Some of the higher-end models might even allow you to balance sounds yourself, offering you the luxury of being able to tune your music precisely to your liking.

3. What Style Feels Most Comfortable?

You’re going to be wearing your earbuds and headphones during activities, so they should be downright comfortable. Ideally, you shouldn’t be able to tell that you have them in. This necessitates getting a proper fit. Some people like to have earbuds that are customized and fit directly into the opening of the ear. As long as they are built to your individual ear, they won’t fall out.

Other people like to have over-ear models for the security. Neither one is a more logical style. The choice comes down to personal preference.

4. Are Looks or Brand Important?

Some models of headphones and earbuds are meant to completely impress. Usually, these have stylish elements or are made by a particular brand. Of course, you should always research possibilities before buying, but you may want to lean toward fashion or appearance if you want something that stands out or you’re loyal to one company.

5. What is Your Budget?

Finally, we come to one of the biggest factors: Price. You’ll be astonished when you realize the gap between the lowest and highest prices for headphones and earbuds. Sure, you need to go with something in your budget, but beware of products that seem too cheap. They usually won’t work well and will need to be replaced rapidly, making them much less of a deal than you thought.

Learning how to buy the right headphones or earbuds takes a little practice. Be sure to keep your receipts and have an understanding of manufacturer’s warranties, just in case you choose something that turns out to be a dud. That way, you can get your money back and start again.

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What are the 9 most question that you should ask when you buy a new smartphone !!

9 Questions You Need To Ask When Buying a New Mobile Phone📲

We are living in the absolute golden age of technology. Smartphones have evolved to be a massive part of our lives and there is so much choice in the mobile phone market. “All that innovation and those options means there is a phone out there to suit everyone, but it also means there’s a lot to consider when it comes time to invest in a new one,” says John Wong, Mobile Buyer at The Good Guys. We’re always here to help you find whatever you need, but in the meantime, here are some key questions to help you narrow your search from there.

1. What Do I Use My Phone For?

This really is the main question. Is the phone your entertainment hub, meaning you’d need one with a bigger screen? Are you a keen photographer and want the tools to be able to snap a happy moment or a beautiful sunset at will with your mobile phone camera? Are you trying to get fit and want encouragement and coaching in your pocket? Do you want to keep in touch with friends and family without breaking the bank? Once you come up with a list of the must-have features, you can narrow your search from there.

2. How Much Should I Spend On a Phone?

There really is a phone for every budget. “Smartphones start around the $100 mark and go up to almost $3000,” explains John Wong. “Flagship phones with all the fanciest features generally start around $1000.” This question is personal and comes down to which features are important to you, and how much you can afford to spend. If you don’t want to pay the cost up front, there’s always Afterpay, or you can get it on one of our great value plans with Telstra, which allow you to pay it off over 24 or 36 months.

3. How Much Data Do I Need On My Phone?

The answer to this question all comes back to how you use the phone. There are a lot of variables in this. For example, streaming 4K video uses around 1GB an hour, but you’d need to use social media for 10 hours to hit that number. If you move to a 5G phone, which has much faster download speeds and less latency, studies show you’re likely to use almost three times as much data as you did on 4G because of the convenience.

4. What’s The Best Phone For My Teenager?

This all really depends on the teenager but, generally speaking, you’ll want to look for a good, budget smartphone that still has good cameras and a quality screen. The Samsung Galaxy A33 5G 128GB has a 48MP rear camera, allowing your teen to take incredible photos that show off stunning detail. Its 128 GB storage capacity will let them store their favourite apps and games for ultimate on-the-go entertainment!

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5. Is This Phone Easy To Use?

“Ease of use comes down to personal preference, so it’s worth coming in-store and seeing which phone operating system works best for you,” says John Wong. Mac users will likely prefer Apple iPhones, while PC users might gravitate more towards Android. Also check online tutorials for the phone you’re considering to make sure they’re written in a way that works for you.

6. Should I Buy The Phone Outright or On a Plan?

This also comes down to personal preference. For some people, the freedom of being able to move carriers or change on a whim is worth paying the whole cost up front, for others it might make more financial sense to split the cost over 24 or 36 months. Keep in mind that plans at The Good Guys have unbeatable value, and often come bundled with extras, such as gift cards you can spend on accessories.

7. What Is The Camera Quality?

“Mobile phone cameras have become so sophisticated that iPhones are now being used to film major motion pictures, while others still look really good without attracting the “pro” price tag,” says John Wong. Come in-store and make sure you like the photos a phone can take before you buy, if that’s something important to you.

8. How Much Storage Does The Phone Have?

We’ve all had the dreaded “storage full” error come up when trying to take a photo. This isn’t as much of a concern if you store your photos in the cloud, but if you like to keep them on your device, along with downloaded movies, music and games, that will influence how much storage you need. Also consider whether an SD card slot is important to you for expandable storage.

9. What Is The Reception And Coverage Like?

For the most part, this will come down to your carrier. Telstra has the best coverage and reception in the country, covering more than 97 per cent of the population. The main thing most people will want to consider is if they’re fine with the speeds of 4G or if they want to turbo-charge their downloads with 5G. If you’re a rural customer, though, ask in-store about Telstra Tick phones, like the Android Samsung Galaxy S21 5G, which get better coverage in remote areas.

There are so many options when it comes to smartphones, and the mobile experts at The Good Guys are here to help. Visit us in-store or online to find out more about the products in this article and don’t miss these tips on choosing your child’s first phone.

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Galaxy S21 FE 5G

KEY FEATURES :-

Smooth scrolling

The 120Hz display technology delivers a super smooth scroll, with optimized refresh rate, and a fast touch response gives seamless visuals in both work and play.

Real display vision

The high quality display with Dynamic AMOLED 2X delivers vibrant color and brightness, even in bright sunlight.

Pro-grade Camera

The powerful pro-grade camera delivers high-quality photos and videos, with a Rear Camera that boasts 12MP Ultra Wide, Wide-angle cameras and a 8MP Telephoto Camera. It also features a Front Camera that includes a 32MP Selfie camera.

30X Space Zoom

30x Space Zoom combines a 3x Hybrid Optic Zoom and 30x digital zoom for high resolution close ups, while the Engage Zoom Lock reduces shakiness the further you zoom in.1

Superior performance

The power-efficient processor chip offers reliability and performance that boosts every experience, from graphic-heavy gaming to multitasking.

All-day Intelligent power

The 4500mAh intelligent battery outlast the day even on 5G, while Super Fast Charging can charge 50% in 30 minutes.

 

truke Buds Q1 Bluetooth Truly Wireless in Ear Earbuds with mic, 60H Playtime and Fast Charge, Environmental Noise Cancellation(ENC), AAC Codec, Dedicated Gaming Mode, BT 5.1, IPX4 (Black)

 Features

Specifications

[Quad Mic with ENC]: truke Buds Q1 comes with Dual-Mic in each earbud and Environmental Noise Cancellation technology. Enjoy a Rich Calling Experience. These Bluetooth Earbuds are equipped with power-efficient Bluetooth v5.1 that supports low power consumption, superior connectivity and compatible with all Android, Windows & IOS devices.

[10hrs Playtime Single Charge]: truke Bassbuds Q1 TWS offers a Playtime of up to 10hours on single charge. Get an additional playtime of up to 50hours using 400mAh Charging Case. Making a total of up to 60hours of playtime.Inline Remote:No

[Tap to Control]: Enjoy easy access to Answer Call or Change Music tracks using Touch Control of these Wireless Earbuds. Tap 2 times of left earbuds to access your preferred Google voice assistant or Apple Siri.

[Low Latency 85ms]: Enjoy a best Gaming experience with Dedicated Gaming Mode and low latency of up to 85ms with SBC Codec. Tap 3 times of right earpods to enter Gaming Mode.

[Powerful Deep Bass]: Experience Deep Bass and Powerful Music with 10mm Real Copper Driver Speakers powered by AAC Codec support on your truke Q1 Headphone.

[6 Months Warranty]: truke Buds Q1 Truly Wireless Earphones with Mic come with 6 Months Warranty from date of purchase. Mandatory registration is required on truke website within 10 days of purchase.

[Lightweight Secure Fit]: truke Buds Q1 weigh only 4 grams each, are designed for All Day Comfortable and Secure Fit Earphone.

[IPX4 Sweat Resistant]: With IPX4 water-resistant rating, these earphones are your best buddies to carry to your daily Gym sessions. Enrich your morning walks in the park with truke airpods.

OPPO K3 (AURORA BLUE, 8GB 0 OPPO K3 (AURORA BLUE, 8GB RAM, AMOLED DISPLAY 128GB STORAGE, 3765MAH BATTERY) REFURBISHED

DESCRIPTION

 16MP+2MP dual rear camera with AI wisdom beauty, front HDR, facial recognition, front portrait style 16MP front camera

16.51 centimeters (6.5-inch) full screen Amoled display with 2340 x 1080 pixels resolution, 394 ppi pixel density and 16M color support

Memory, Storage & SIM: 8GB RAM, 128GB internal memory Dual SIM (nano+nano) dual-standby (4G+4G)

Android ColorOS v6.0 operating system with 2.2GHz Snapdragon 710 octa core processor, Adreno 616

3765mAH lithium-polymer

ONEPLUS NORD 12GB 256GB

 

TECHNICAL DETAILS

NETWORK	Technology

LAUNCH	Announced	2020, July 21
	Status	Available. Released 2020, August 04

BODY	Dimensions	158.3 x 73.3 x 8.2 mm (6.23 x 2.89 x 0.32 in)
	Weight	184 g (6.49 oz)
	Build	Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
	SIM	Dual SIM (Nano-SIM, dual stand-by)

DISPLAY	Type	Fluid AMOLED, 90Hz, HDR10+
	Size	6.44 inches, 100.6 cm2 (~86.7% screen-to-body ratio)
	Resolution	1080 x 2400 pixels, 20:9 ratio (~408 ppi density)
	Protection	Corning Gorilla Glass 5

PLATFORM	OS	Android 10, upgradable to Android 12, OxygenOS 12
	Chipset	Qualcomm SM7250 Snapdragon 765G 5G (7 nm)
	CPU	Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
	GPU	Adreno 620

MEMORY	Card slot	No
	Internal	64GB 6GB RAM, 128GB 8GB RAM, 256GB 12GB RAM
		UFS 2.1

MAIN CAMERA	Quad	48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF, OIS 8 MP, f/2.3, 119˚ (ultrawide) 5 MP, f/2.4, (depth) 2 MP, f/2.4, (macro)
	Features	Dual-LED flash, HDR, panorama
	Video	4K@30fps, 1080p@30/60/240fps, gyro-EIS

SELFIE CAMERA	Dual	32 MP, f/2.5, (wide), 1/2.8", 0.8µm 8 MP, f/2.5, 105˚ (ultrawide), 1/4.0", 1.12µm
	Features	HDR
	Video	4K@30/60fps, 1080p@30/60fps

SOUND	Loudspeaker	Yes
	3.5mm jack	No

COMMS	WLAN	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
	Bluetooth	5.1, A2DP, LE, aptX HD
	GPS	Yes, with dual-band A-GPS, GLONASS, GALILEO, BDS, SBAS, NavIC
	NFC	Yes
	Radio	No
	USB	USB Type-C 2.0, USB On-The-Go

FEATURES	Sensors	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

BATTERY	Type	Li-Po 4115 mAh, non-removable
	Charging	Fast charging 30W, 70% in 30 min

MISC	Colors	Blue Marble, Gray Onyx (Gray Ash)
	Models	AC2001, AC2003