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Computer Repair and Laptop Repair in Tucson, Arizona

JB Computer Repair provides affordable technical onsite and remote support for individuals, small and large businesses in Tucson, Arizona, and other markets. Regardless of your computer or Wi-Fi needs, we can provide the technical support to get things running smoothly and keep them that way.

We offer hourly rates with free pick and delivery. We also offer an affordable fixed rate for virus removal and data recovery service. Unlike big box stores with low quality service, high prices, and pushy sales reps, we strive to provide the best service available at a fair price.

WIRELESS NETWORKING

HOME AND BUSINESS

Over the last few years, the use of wireless networks has exploded. Wi-Fi was first invented in 1997, after the creation of the committee called 802.11. Initially, wireless networks were expensive, buggy, slow, and not very secure. The wireless routers and modems offered today from Netgear, Apple, Linksys, etc.; are a lot faster and provide various security capabilities. You have the options of cable or DSL (Digital Subscriber Line) "technology that brings high-bandwidth data to homes and businesses via an ordinary copper telephone line. XDSL refers to several variations of DSL (ADSL, HDSL, and RADSL.)" Our high-performance Wi-Fi upgrades can increase your current "ISP's" (Internet Service Provider's) Wi-Fi proficiency. The most common "ISPs" are Cox, Comcast Xfinity, CenturyLink, Time Warner Cable, Verizon, and Charter.

Residential and Commercial Wireless Networking Services

VIRUS AND MALWARE REMOVAL

SAME DAY - NEXT DAY SERVICE AVAILABLE

Computer and Laptop Virus Removal in Tucson

The first personal computer virus was created in 1982. "Elk Cloner", as it was called was written for the Apple II system. The first PC virus was created in Pakistan in 1986 and was named "Brain". Since then, computer viruses and malware have run ramp it. There are various types of infections that do everything from disable your wireless network adapter to stealing your banking and other personal information. The newest and most dangerous infections today are ransomware viruses. These viruses place a perpetual block or threaten to publish a victim's data unless a ransom is paid. WannaCry is the most well-known of these types of viruses. This infection attacked the world from May 12, 2017 to May 15, 2017, and claimed over 200,000 victims. There were over 180 million ransomware attacks last year.

TYPES OF WIRELESS NETWORKS AND HOW TO CHOOSE THE RIGHT ONE FOR YOUR NEEDS?

HOME AND BUSINESS NETWORKING 101

Home and Business Networking in Tucson

Wireless networks allow you to connect several types of equipment without the use of cables. The four types of wireless networks are, WMAN, WWAN, WPAN and WLAN. The first network is WMAN, which stands for Wireless Metropolitan Area Network. This type of wireless network is used to cover the area of an approximate size of a city. WMAN's are usually used by a large corporation, government agency or internet service provider. They typically have secure access limited to authorized users. The most used form used of this type of network is a WIMAX. The term WIMAX refers to the trademarked term Worldwide Interoperability for Microwave Access. This network is compatible with software and wireless internet hardware that used IEEE 802.16 standards for a wireless metropolitan area network.

HOME AND BUSINESS NETWORKING 101 CONTINUED- WHAT IS A WIRELESS METROPOLITAN AREA NETWORK AND HOW THEY ARE USED?

Home and Business Wireless Networking in Tucson

It transmits a signal like Wi-Fi. The signal allows the devices to connect to the internet as well as communicate between each other. WIMAX transmits a signal via tower that resembles a cellular phone tower. These towers can be used to connect to other towers using a microwave likes that works with line of sight. These wireless systems can then be used to connect to the authorized users’ laptops, tablets, dual mode hybrid phones and the other Wi-Fi capable devices.

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HOME AND BUSINESS NETWORKING 101 CONTINUED-WHAT IS A WIRELESS LOCAL AREA NETWORK AND HOW THEY ARE IMPLEMENTED?

Home and Business Wireless Networking for Local Area Networks in Tucson

These types are networks, usually contain a wired internet connection, which connects to a modem and then to a router. The router is used to transmit the Wi-Fi signal to other devices. Wireless local area networks are typically limited to a specific area, such as a building, complex, school, hospital, laboratory, home or even a business location. These networks are based on (IEEE) Electrical and Electronic Engineers standards of 802.11 or commonly referred to as your basic Wi-Fi. The Electrical and Electronic Engineers is the world’s largest association, that is dedicated to the advancement of technology and electronic innovations to better education, professional requirements, and technology standards in the field of computers and other technological areas.

HOME AND BUSINESS NETWORKING 101 CONTINUED-WHAT IS A WIRELESS PERSONAL AREA NETWORK AND HOW ARE THEY USED?

Home and Business Wireless Networking for Personal Area Networks in Tucson

These types are networks are usually used to connect to a device that is compatible to the Bluetooth signal it transmits. The distance is typically 25 to 35 feet. The most common use is when you connect a speaker or earbuds to a cellphone or laptop.

6 WAYS TO FIX SLOW WI-FI IN YOUR HOME OR BUSINESS.

1.CALL YOUR INTERNET SERVICE PROVIDER OR ISP AND CONFIRM YOUR BANWIDTH SPEED?

How to fix slow Wi-Fi in your home or business in Tucson

The first step to fixing your wi-fi speed, to call your internet service provider and confirm what speeds you are paying for. We also recommend that if the cable that brings service into your home or business has been there for years, you should have your internet service provider replace the cable. Even if you are paying for 1000 gigabit speeds and have the best equipment, you can still have slow speeds with an old cable. All cables loose attenuation over time. It is also a good idea to check the ethernet cable that connects the router to the modem. In some cases, such as gaming or high-performance desktop computers, it is recommended to upgrade these cables to CAT 5 or CAT 6. Depending on the quality of the cables initially installed, the replacement duration can range from 2 to 16 years. We recommend a max of 10 years for optimum performance. If you have a heavy internet workload that consists of several computers or a server runner continuously connecting to a database, you should replace your cables more frequently.

2. THE QUALITY OF YOUR INTERNET ROUTER AND GREATLY INFLUENCE THE OUTCOME OF YOUR COMPUTER AND STREAMING EXPERIENCE.

How to fix slow Wi-Fi in your home or business in Tucson

The growing demand for reliable and dependable wi-fi has created some unforeseen problems when it comes to the use of computers, televisions and other electronic devices that use wi-fi. In most homes today, people stream all or most of their television. We also use wi-fi to connect with security cameras, appliances, cellular phones, computers, etc. After you have contacted your internet service provider, the next step in insuring a strong and stable wi-fi environment in your home or business, would be to purchase a quality wireless router. The better the quality of your internet router can totally change the experience you have while enjoying your favorite television program or playing your game console. Your internet router can increase the connection speed of the device you are using, as well as the quality and clarity of the movie you are watching. It is even more important when it comes to business to have strong reliable wi-fi. Like most businesses, most of your employees work on computers. The better your wi-fi the more work the employees can accomplish in a shorter period. The more efficient the work environment, the more money a business can save over time. Productivity is especially important when it comes to running a successful business. Going with the less expensive options can cause unwanted headaches and slower production in the long term.

3. WHO IS YOUR INTERNET SERVICE PROVIDER?

How to fix slow Wi-Fi in your home or business in Tucson

Your internet service provider or commonly known as your ISP, is the company that provides your internet service as well as other services. Most ISP's offer several different packages, which consists of different speeds and in some cases the amount of bandwidth you can use in a calendar month. In some circumstances they will offer digital telephone, cable, or satellite television. In some instances, ISP's may also offer cellular phone services. The internet package that you choose should meet and exceed your internet needs, for a better experience. Take an accurate assessment, which includes the max number of devices and the location where you place your router. The proper placement of your router can determine the overall outcome of your wi-fi experience. The structural design of your home or business can interfere with the signal strength as well as the distance between the router and the device you are connecting to. If the device in use is too far from the router or the wi-fi must pass through too many solid walls, etc., it can cause constant disconnects or a failure to connect all together. The type of materials a home or business is constructed with can also cause connection problems, especially with 5G, which is faster but has a shorter wavelength.

4. HOW TO SELECT THE RIGHT BAND OR CHANNEL FOR YOUR WIRELESS ROUTER?

How to fix slow Wi-Fi in your home or business in Tucson

Your internet service provider or commonly known as your ISP, is the company that provides your internet service as well as other services. Most ISP's offer several different packages, which consists of different speeds and in some cases the amount of bandwidth you can use in a calendar month. In some circumstances they will offer digital telephone, cable, or satellite television. In some instances, ISP's may also offer cellular phone services. The internet package that you choose should meet and exceed your internet needs, for a better experience. Take an accurate assessment, which includes the max number of devices and the location where you place your router. The proper placement of your router can determine the overall outcome of your wi-fi experience. The structural design of your home or business can interfere with the signal strength as well as the distance between the router and the device you are connecting to. If the device in use is too far from the router or the wi-fi must pass through too many solid walls, etc., it can cause constant disconnects or a failure to connect all together. The type of materials a home or business is constructed with can also cause connection problems, especially with 5G, which is faster but has a shorter wavelength.

5. CHECK YOUR ROUTER FOR A VIRUS.

How to fix slow Wi-Fi in your home or business in Tucson

This is one of the most overlooked problems that can cause you to have slow Wi-Fi. If your router is infected with malware, you may have constant disconnects, lagging and slow speeds or even shut down and reset for no apparent reason. There have been cases where the malware consists of a bot that monitors your router for online activity and attacks other individuals and companies using your router as the culprit. This is why it is so important to keep a good virus and malware protection on your computers. Good malware and virus protection will allow you to scan your router, security system and other devices. Also, if the malware or virus has corrupted your router or devices you may have to uninstall and reinstall the most recent version of firmware or the computer may have to be wiped and have the operating system reinstalled. Primarily, if your computer is infected with a virus or malware, you will have to backup all your data that you wish to save to an external hard drive or flash drive. Once you have backed up all your data, you will have to reset your PC. Your windows operating system should have one you reset your PC with. If that version of your operating system is also infected, then you will have to reinstall your operating system from another source, such as online or from system flash drive. After you complete the reinstallation of your operating system. You should install good virus protection and scan your computer once again as sometimes a virus will still be on your device.

6. DO YOU HAVE THE RIGHT INTERNET SERVICE PROVIDER?

How to fix slow Wi-Fi in your home or business in Tucson

Your reliability and wi-fi speed can vary from one internet service provider to another. Internet service providers use several types of connections to get your services to your home or business. Some internet service providers use cable, satellite, DSL, and fiber optics. The way you receive internet services can be limited due to the location of your home or business. If you are in a rural area, you may be limited to DSL or satellite. If you are in a metropolitan area, you will have more options available, such as fiber optics or cable. Now there are some new internet services available from mobile service providers like Verizon. Usually, the most versatile and fastest internet services come from fiber optics and cable. In rural areas satellites are the most common and can be quite expensive. The least expensive option is usually DSL, which comes in from a telephone line. Some of these companies are offering speeds up to 10 to 25 Mbps. CenturyLink offers 100 Mbps in some areas. Cable companies usually have 10 Mbps to 1 Gigabyte per second. Fiber optics is by far the fastest at 200 Mbps to 20 Gigabytes per second. Fiber optics internet service is available in commercial areas and some of the newer housing developments, that were built in the last decade. Fiber optics is also the most expensive and hardest to get in your home. For your average home or business, cable internet services will be enough to handle your needs. One of the biggest mistakes most homeowners and business owners make is not purchasing the right equipment for the task at hand. You should access the number of devices you are planning to run and leave room for growth in or in a home at the busiest times of day. During peak hours, your internet services will usually slow down and speed up during non-peak hours. Overkill is an effective way to look at acquiring internet services. It is better to have more than you need than less.

WHAT IS INFORMATION TECHNOLOGY AND WHY IT IS SO USEFUL IN TODAYS SOCIETY?

What is information technology?

Information technology is the use of networks, software, and computers to organize and simplify the information and electronic data used and stored by businesses. These applications have a multitude of uses in business. This type of technology simplifies and makes our day-to-day activities possible. Information technology is used in research, banking, social media, managing investments, controlling, and managing workflow and cybersecurity, to name just a few of its many uses.

TERMS AND DEFINITIONS THAT EVERY INFORMATION TECHNOLOGY PROFESSIONAL SHOULD KNOW.

What is information technology?

ADAPTIVE TECHNOLOGY - is a term used to describe modification that increases productivity while using technology for those with disabilities or other physical challenges. An example would be a larger monitor or adjustable desk or desk chair.

AGILE SOFTWARE DEVELOPMENT - is a technical term used to describe the methodology of using a flexible approach to achieve the end goal with developing new software or making modifications to and existing software. The term agile development has been used for years to describe the flexible approach during the process of completing many projects that are not technologically related.

ARGUMENTED REALITY - is the use of computer programs and other technical devices used to overlay digital photos, music etc., into real life environments. An example of this virtual reality or VR.

ARTIFICAL INTELLIGENCE - is the intelligence exhibited by a non-living thing such as a computer program, machine, etc. These machines or computer programs are capable of learning as they perform a task and providing an environment with less errors than humans. Examples of artificial intelligence are self-driving vehicles, games, drones, and other self-navigating vehicles.

BIG DATA - is a term used to describe an abundance of data that is too detailed and complex sets for the normally used data software. Big data is usually used to describe the infinite use a computer program can have or the future earning potential of a company. This type of data set is usually used with new data and sometimes can give false conclusions.

BIOMETRICS - is the measure of behavioral characteristics used to identify an individual. These characteristics can be psychological or behavioral differences for a specific individual. An example of this would be the use of a person's face or fingerprint to access their cellular phone.