Different types of Screens
It’s fascinating to think that the technology used to develop displays, particularly screens, is over a hundred years old. Which begs the question, when did screens first appear? The first signs of display technology appeared in 1897 with physicist Karl Ferdinand Braun, who developed the Cathode Ray Tube. This small tube would lay the humble beginnings of  the very first television.
 
The Cathode Ray Tube was ahead of its time in the year it was created. It consisted of an electro gun that produced images by displaying electrons on a phosphor-coated screen. The cathode is a heated filament which lies in a vacuum created within a glass tube. The ray is a stream of electrons that naturally pour off a heated cathode onto the vacuum. The high-speed electrons fly through the vacuum in the tube and ultimately hit the flat screen at the other end. The phosphor-coated screen glows when it is struck by the beam of electrons, producing an image. The earliest Cathode Ray Tubes were monochromatic and primarily used in oscilloscopes, as well as black and white televisions. 
 
The next major breakthrough in display technology came a decade after Karl Ferdinand Braun. In 1907, H.J. Round discovered the phenomena of electroluminescence. This is the process in which a material emits light in response to an electric current passing through a strong electric field. Little did Round know that this scientific discovery would lay the foundation for LED screens in the future.
 
The evolution of screens took its next major step forward with television when the first electronic television was invented in 1927; this television implemented the principles CRT technology. Early tv sets were quite primitive. Cameras weren’t able to capture certain colors, audio levels, and lighting setups which led to poor display quality. It wasn’t until 1951 that television shows were able to be broadcast in color, leading to the purchase of televisions for over 20 million households. Screens would soon find a new home in computer systems.
 
The first personal computer was introduced in 1975, however, the market boomed when Apple released the coveted Apple II in 1977. This computer came with a color display screen that revolutionized the entire industry and set the standard for all future PCs. A color display appealed to many consumers, creating instant demand. Eventually, this technology would make its way to cell phones, transforming the potentiality of screens.
 
One of the current selling point of cell phones is the screen. The mantra “bigger is better” is adopted by many consumers looking to purchase the latest technology. Not only does the size of the screen matter, so does clarity. Cell phone screens have evolved from being less than two inches in diameter to being over 6 inches nowadays. Some phones have the ability to fold in half. Liquid crystal displays are the most prevalent and use the same concept as electroluminescence.
 
At Just IT Hardware, owned and operated by ASAP Semiconductor, we can help you find all the screen parts for the aerospace, civil aviation, and defense industries. We’re always available and ready to help you find all the parts and equipment you need, 24/7-365. For a quick and competitive quote, email us at sales@justithardware.com or call us at +1-714-705-4780.     

Read more »


different types of batteries
Imagine having to keep everything that depends on electricity connected to the wall— it would be extremely impractical and sometimes impossible. Thanks to batteries, we don't have to do this.  Batteries store generated electrical energy and allow us to operate independently of outlets and wall plugs. There are two major battery types: primary and secondary.
 
Primary batteries are disposable— they cannot be recharged once they are depleted and their electrochemical reactions cannot be reversed. They are used for application in devices that consume low amounts of power and should last quite a while. Alkaline batteries are the most common type of primary batteries. They have high specific-energy, are environmentally friendly, and cost-effective but have low load currents so they cannot be used for all portable battery applications. They are common in devices such as remote controls, toys, and wrist watches.
 
Secondary batteries are rechargeable— their chemical reactions can be reversed when a certain voltage to the battery is applied in the reversed direction. They are the most cost-effective battery for long term applications. They are used in high drain applications, such as vehicles and load leveling in electricity generation. Secondary batteries can be categorized into four different types based on their chemical composition: lithium-ion (Li-ion), nickel cadmium (Ni-Cd), nickel-metal hydride (Ni-MH), and lead-acid. The chemistry determines certain things such as their specific energy, cycle life, shelf life, and price.
 
Ni-CD batteries are good at maintaining voltage and holding the charge when they're not being used, but when they’re recharged at partially charged battery levels, it lowers their future capacity. They have a good life cycle at low temperatures and are able to deliver full capacity at high discharge rates. Small packs of Ni-CD batteries are used for toys, portable and electronic devices while bigger packs are used for aircraft starting batteries, electric vehicles, and standby power supplies. Ni-MH batteries are similar to Ni-CD, but they are not susceptible to the same issue— when they’re recharged at partially charged battery levels, it doesn’t lower their future capacity. They also have a higher capacity and energy density.
 
Lithium-ion batteries have high energy density and low self-discharge and are the most popular type of secondary batteries. They have the best performance-to-weight ratio. Lead-acid batteries are used for heavy-duty applications. They have low energy-to-volume and low energy-to-weight ratios; however, they have a large power-to-weight ratio.
 
When selecting a battery that will best fit your needs, remember to choose one based on their energy density, power density, safety, life cycle durability, and cost. There’s a big difference between a battery good for a child’s toy and a battery good for an emergency walkie-talkie.
 
At Just IT Hardware, owned and operated by ASAP Semiconductor, we can help you find all the batteries you need, new or obsolete. As a premier supplier of parts for the aerospace, civil aviation, and defense industries, we’re always available and ready to help you find all the parts and equipment you need, 24/7x365. For a quick and competitive quote, email us at sales@justithardware.com or call us at 1-714-705-4780. 

Read more »


motherboard, circuit board, technology
A motherboard is the main printed circuit board found in technological systems and is the platform for all components of a system to communicate. All parts are connected to the motherboard. The components of a motherboard are the expansion slots, random access memory (RAM) slots, central processing unit (CPU) socket, the basic input output system (BIOS), the complementary metal oxide semiconductor (CMOS) battery, power connectors, the integrated drive electronics (IDE) connector, the serial advanced technology attachment (SATA) connector, the co-processor, and the cabinet connections. 

The expansion slots come in a few forms. The industry standard architecture (ISA) slots are the oldest expansion slots— conventional display cards or sound cards are installed in them. The ISA is a 16-bit bus. The peripheral component interconnect (PCI) slots are used to install add-on cards and are often important in modern motherboards. They support a 64-bit high-speed bus. PCI expresses are the upgraded version of the PCI slots and are the quickest component of the motherboard to support add-on cards. It supports a full duplex serial bus. The accelerated graphics port (AGP) slot is used to install a graphics card; it is 32-bit bus.
           
RAM slots are temporary memory slots that get erased once the power is turned off. CPUs use RAM to access information quickly; once information is saved, it is stored permanently in something like a hard disk. The single in-line memory module (SIMM) slots are older and they support 32-bit bus. The double inline memory module (DIMM) slots are more current and run on a 64-bit bus.
           
The CPU socket is used to install the processor on the motherboard. The CPU retrieves commands from the memory unit, performs arithmetic and logic operations, and stores the processed data back to memory. The components of a CPU include the control unit and the arithmetic logic unit (ALU). The ALU receives three types of inputs: control signal from the CU, data to be operated, and status information from previous operations. The data in the output is stored in memory and the status information is stored in the internal register. The sockets include the socket-7, socket-370, socket-775, socket-1156, and the socket-1366.
           
The BIOS is an integrated chip that contains the information and settings of the motherboard. These can be modified. The CMOS battery is responsible for storing information in BIOS. Power connectors are used on motherboards in order for the system to receive power from the switched mode power supply (SMPS). The AT connector is found on older motherboards while the ATX connector is used on modern motherboards and are either 20 or 24 pin female connectors. The integrated drive electronics (IDE) connectors allow disk drives to interact with each other. Hard disk drives use 40-pin male connectors and floppy disk drives use 34-pin male connectors. Serial advanced technology attachments connectors allow SATA hard disks to interact with each other. They operate faster than IDE connectors. The co-processor supports the main processor in mathematical calculations and computer graphics. The cabinet connections include the power switch, reset switch, front USB, front audio, power indicator (LED), and HDD LED.
           
At Just IT Hardware, owned and operated by ASAP Semiconductor, we can help you find all the motherboard components you need, new or obsolete. As a premier supplier of parts for the aerospace, civil aviation, and defense industries, we’re always available and ready to help you find all the parts and equipment you need, 24/7x365. For a quick and competitive quote, email us at sales@justithardware.com or call us at 1-714-705-4780.


Read more »


wireless router, single band, dual band, black
Wireless routers are more important now than ever for any business because the internet is such an integral part of everything. There are many different types of wireless routers to choose from and many different things to consider.

There are three letters that signify which generation the router belongs to— “b”, “g”, and “n”. The first generation is the “b”, followed by the “g”, and then the “n”. Generation “b” is now obsolete and uncommon other than on eBay. Generation “g” is still used, but not as common as “n” routers, which are the newest and with the fastest speed and longest range of the three.

The two types of band width are the single and dual. Routers using the “b” and “g” generations often operate under a single band width at 2.4 GHz, while the “n” generation operates under dual band width at 2.4 GHz and 5 GHz. Dual bands operate using two radios, which are faster and more efficient. It provides better service and has less interference compared to the 2.4 GHz.

Speed is variable to the connection that’s available as well as to the generation of the router. The “b” generation is the slowest at 11Mbps, the “g” has a max speed of 54 Mbps, and the “n” is the fastest capping at 300 Mbps. Although the “n” can provide very fast performance, the speed is limited by the internet connection available.

Security is supported through the routers, with WEP, WPA, and WPA2. This allows the owner to set up a password, restrict access, set up guest access, and so on.

Finally, there are single and dual WAN connection. The main difference is one operates with a single WAN port connecting the business to the internet, while the other does the same with two WAN ports. Dual WAN is especially handy in the event that a WAN port fails, there is still a backup port, preventing network downtime.

Just IT Hardware, owned and operated by ASAP Semiconductor, should always be your first and only stop for all your hard to find wireless routers. Just IT Hardware is the premier supplier of single band, dual band, single WAN, Dual WAN and more, new or obsolete. We’re always available and ready to help, 24/7x365. For a quote, email us at sales@justithardware.com or call us at +1-714-705-4780.


Read more »


Networking-devices like routers, hubs, bridges, switches, modems and more

Today, one of the most important things you can do is set up your own network. Whether you run your own business or you’re moving into a new home, the rise in the Internet of Things (IoT) mandates the need for a computer network. But, before you set one up, it’s important to understand the different segments and how they work.

The network hub is a LAN device used to connect multiple network hosts and do data transfer. When the host sends data packets, they’re sent to the hub which copies all the packets and sends them to all the ports the hub is connected to. The port for whom the data packet is intended can claim the packet. Unfortunately, a hub is not safe and secure, and copying data packets makes the connection slow and congested.

Network switches work similarly to hubs, but they filter and forward instead of copy and forward. So, when the switch receives a packet, it filters the packet only to the intended receiver. However, as a result, a switch requires the addition of its own content addressable memory (CAM).

Modems are the combination of modulator and demodulator. Normally telephone lines carry analog signals, but computers generate binary data or digital data in the form of 1s and 0s. In order to use the same wires for both telephone lines and internet connection, the modem modulates and demodulates the signal between the digital data of a computer and the analog signal of a telephone line.

Network routers are devices that route data traffic from one network to another. A router works a lot like a traffic police would, directing different network traffic to different directions. Bridges are like network routers, but they connect two subnetworks as part of the same network.

And repeaters are devices that amplified the received signal; they receive signals and retransmit them at a higher level or higher power.

Network devices are important because when your network goes down, all your work is on hold until your internet connection can be reestablished. At Just IT Hardware, owned and operated by ASAP Semiconductor, we know how important it is to stay connected. After all, we are a premier online parts distributor. So, we’re always ready and on standby to help you with all your parts and component related-needs, just visit us at www.justithardware.com to get started on a quote.


Read more »


networking-devices

Today, being connected is essential to daily life. If you are not connected, it is nearly impossible to function as an individual or business as everything relies on a connected mobile or desktop device. Networking devices are vital to the functionality of a computer. To access the internet, you need to have a networking device so that you can be connected. Different network devices include network hub, network switch, modem, network router, bridge, and repeater. Two of the most common are a modem and a network router.

Modem is short for modular and demodulator. The modem’s purpose is to change the digital data into analog data so that phone lines can be used to communicate and transfer data on your electronic device. The purpose of the router is to direct data traffic from different networks. Without the router, the data would not know where to go and would therefore render the connection useless. The direction of the router makes it possible for computers and devices to stay connected. Routers have the capabilities of a wired and wireless connection. Combined, the networking modem and router are called a network topology. They work in unison to keep devices connected. However, this sometimes isn’t enough. Often limits are reached, and more capacity is needed to stay connected; when this happens, you can add more network devices to sustain the needed requirements for the network. This is called daisy chaining. This keeps devices connected and helps maintain reliability of the network.

If you need to add network devices to your home or business, make sure you visit Just IT Hardware for all of your network hardware needs. Just IT Hardware, owned and operated by ASAP Semiconductor, will make finding all the IT and computer parts you need a fast and efficient process. Once we get your request, our knowledgeable staff will work tirelessly to get the network hardware you need for the best price. Our streamlined purchasing process was made to make our customers’ experiences as easy as possible. Purchasing network hardware can be a confusing buying process, but now you have a safe and easy way to make these purchases with us at Just IT Hardware. If you’re interested in a quote for an IT hardware part, feel free to contact our sales department at sales@justithardware.com or call us at +1-714-705-4780


Read more »


Types-of-memory

There are two major types of computer memory which are the primary memory and secondary memory. They both have similar functions but with many different features.

Primary memory:

Primary memory is a volatile memory. This means that anything stored on this will not be permanent. Any part of memory can be saved as data onto the memory, but it will not exist on there forever. Another name for primary memory is RAM, Random Access Memory. RAM will allow the user to add and remove content freely. The only down side of using this choice of memory is in the chance of a power failure, all data will be permanently lost. Some other forms of memory under primary memory is DRAM, SRAM, and DRDRAM.

Secondary Memory:

Secondary memory is the permanent form of memory. This means that counter to the primary method this one is permanent and external. Some examples of what secondary memory may be are floppy disks, magnetic discs, and cache devices. ROM, Read Only Memory is the archaic form of secondary memory, it can store a large sum of content. In case of a power failure, there will be no data loss. The three different external forms of memories are PROM, EPROM, and EEPROM. PROM (programmable read-only) is programmed in a special way, it can write almost any content on the memory, however, it cannot be erased by any program. EPROM (erasable programmable read-only memory) is the improved version of the PROM. This memory can erase the content that you want to remove after it without throwing the entire device away. The user can delete the data of EPROM through pass on ultraviolet light and it erases chip is reprogrammed. EEPROM (electronically erasable programmable read-only memory) is the following improvement made in secondary memory, specifically the EPROM. Using the EEPROM you do not need to use an ultraviolet light to erase the content, but it is possible to remove content freely. EEPROM is now known as Flash memory which is used every day by many computer users.


Read more »


Internet-of-things

In recent news, Microsoft has launched a new security MCU (microcontrollers) unit for IoT products. IoT stands for internet of things, which are used for interrelated computer devices that are connected via internet, wifi, or bluetooth. IoT products allow you to stay connected to devices and gadgets while physically separated from the device. There are many IoT products on the market that is gaining popularity such as; smart thermostat, home security systems, smart pet feeder, smart washer and dryer and the like. IoT products allow the user to control the device while being away.

As more IoT products are being produced and made available to the consumer, there are some security risks. Since more devices are being used by the internet, wifi, and bluetooth, the information being passed through those mediums are at risk of being hacked and obtained by outside threats. IoT products must be safe to use for the consumer.

Microsoft has provided a solution by developing a microcontroller that can be integrated into IoT products and allow for added security. With the new microcontroller, the user can now run security updates on the device and manage software. Not only is Microsoft offering a wide range of products and services to the customer, the new microcontroller will use Linux OS. By using Linux, it offers a great platform that allows silicon partners to rapidly innovate and use it as a starting point of development. The new system can be used on any cloud service including AWS and Alibaba Cloud.


Read more »


microprocessor

The first Integrated Circuit was created in 1959 by Fairchild Semiconductor, marking the beginning of microprocessor history that resulted in giving us the advanced computer capabilities we have today. A microprocessor, essentially, is a computer processor that is built on a microchip; its job is to process and execute any instructions it is given. But how does this apply to you? The computer you are using to read this, is employing a microprocessor to transfer data to you.

Microprocessors are extremely advantageous for any computer user. Just a few of these advantages include:

• Low cost– since the cost of making microprocessors is low, the overall cost of the computer system is reduced as well;
• High speed processing– they can carry out millions of instructions per second;
• Small size– allows for a reduction in the size of the computer system as a whole;
• Generates less heat– compared to their counterparts, microprocessors emit far less heat, reducing the chances of your computer overheating.

Microprocessors are made up of a central processing unit (CPU), memory modules, input/output units, and a system bus to keep data moving quickly and effectively. It uses all these components to execute three basic functions:

1. Perform mathematical operations (addition, subtraction, multiplication and division);
2. Transfer data from one memory location to another;
3. Use instructions to make its own decisions.

Since the creation of the microprocessor, there have been five different generations- each faster and more capable than the last.

• 1st generation (1971-1973) – Intel created microprocessor 4004, which only ran at 4-bits, was only able to add and subtract numbers;
• 2nd generation (1973-1978) – progressed to 8-bit processors, carried out through Motorola’s 6800/6801, Intel’s 8085 and Zilog’s Z80; • 3rd generation (1979-1980) – 16-bit processors included Intel’s 8086 and Zilog’s Z8000;
• 4th generation (1981-1995) – Intel’s 80960CA and Motorola’s 88100 were introduced as 32-bit processors;
• 5th generation (1995-present) – low margin, high performance and high speed 64-bit processors; include Pentium, Dual, Quad and Celeron processors.

About Just IT Hardware Just IT Hardware is the leading independent distributor of information technology hardware equipment– with a continuously increasing inventory, you can be sure Just IT Hardware will have everything you need and more. Just IT Hardware will ensure all needs are addressed in a timely manner. Just IT Hardware is known for having hard to find and/or out of stock parts and can always help you find cost-effective solutions. For a quote, reach out to the main office by phone: 714-705-4780 or by email: sales@justithardware.com


Read more »


sandisk memory card

Western Digital has been able to successfully incorporate their resources with SanDisk with their recent merger. As a result of the merger, Western Digital has released what is known to be the fastest UHS-1 flash memory card, creating the 400GB SanDisk Extreme UHS-1 microSDXCTM.

Professionals have successfully included newer traits into the disk while still being able to meet Application Performance Class 2 (A2) Specification, certified by SD Association, a global consortium. Destined to be an extremely enhanced speed disk that may be the answer to increasing mobile device speed.

“Western Digital’s new card features read speeds of up to 160MB/sec and writes at up to 90MB/sec, making it 50% faster than the previous fastest model.”

Many consumers are presented with the issue of lack of device speed due to the flagship of a phones RAM not being able to take in the speed of the removable memory card when used on a mobile device. Western Digital has taken this problem into their own hands to be able to sway the opinion and implement these types of cards for mobile devices once more.

Despite Western Digital recent release, they have continued to present the industry with an new SD card. Sharing similar traits of such as high tech PCIe technology that could be found in the leading PCs and Macintosh computers. With newly designed technology

“The card was demonstrated achieving sequential read speeds of up to 880MB/sec and sequential write speeds of 430 MB/sec.”

Although it has great potential, the card will still need to be further tested for more efficiency upon implementation. Many times, incorporating of such high-powered cards require the generation of much more power along with cooling and newer hardware.

Just it hardware is a prime solution for your part needs including memory cards, and SanDisk products. All of ASAP parts have been tested and placed under warranty to ensure full transparency of your order. Our team is committed to make your coordination as easy as possible. With Sales representatives working around the clock we are destined to provide you with the best customer service. For instant RFQs call 1-714 705 4780 or email sales@justithardware.com.


Read more »


Recent Twitter Posts

ASAP Semiconductor's Certifications and Memberships

  Get A Quote
^