Want to upgrade from your age-old PC to a cutting-edge laptop? Then you have come to the right place. HM Infotech has a huge selection of laptops which are stylish alternatives to the bulky PC. All our laptops are manufactured by trusted brands like Dell, Micromax, Lenovo, HP, Apple, Acer, Asus, Sony, Toshiba, Fujitsu and more. As we have laptops sorted by brands, price, discount, seller, display size, CPU manufacturer and site, CPU speed, memory size, notebook type, storage type, laptop features, HDD size, Operating System, laptop weight, battery life and computer graphics processor, HM Infotech makes your buying decision easier and faster.
Desktops are one of the most popular computer systems today. You can now buy smart looking and efficient desktops at HM Infotech. Shop online by browsing through our extensive range of desktops at HM Infotech. The products featured on our online store are from some of the most well known brands such as Asus, Lenovo, HP, Apple, Dell, Comfort, G1 Thin Pcs and many more. You can find desktops at HM Infotech is various sizes and with various features. You can find 19.5” desktops, 21.5″ desktops, all in one desktops and more in our collection. No matter what your requirement is, our extensive range is sure to cater to your needs. You can now buy branded desktops online at HM Infotech What’s more, you can buy your preferred monitor at an attractive price. HM Infotech brings to you special discounts that allow you to buy the best desktops available in the market today at incredible prices. So if you have been mulling over the idea of buying a desktop, but have refrained yourself because of the prices, this is your chance to pick up a product at the most profitable prices.
A PBX System
A PBX (private branch exchange) is a telephone system within an enterprise that switches calls between enterprise users on local lines while allowing all users to share a certain number of external phone lines. The main purpose of a PBX is to save the cost of requiring a line for each user to the telephone company’s central office.
The PBX is owned and operated by the enterprise rather than the telephone company (which may be a supplier or service provider, however). Private branch exchanges used analog technology originally. Today, PBXs use digital technology (digital signals are converted to analog for outside calls on the local loop using plain old telephone service (POTS ).
A PBX includes:
- Telephone trunk (multiple phone) lines that terminate at the PBX
- A computer with memory that manages the switching of the calls within the PBX and in and out of it
- The network of lines within the PBX
- A console or switchboard for a human operator (optional)
IP PBX System
An IP PBX is a private branch exchange (telephone switching system within an enterprise) that switches calls between VoIP (voice over Internet Protocol or IP) users on local lines while allowing all users to share a certain number of external phone lines. The typical IP PBX can also switch calls between a VoIP user and a traditional telephone user, or between two traditional telephone users in the same way that a conventional PBX does. The abbreviation may appear in various texts as IP-PBX, IP/PBX, or IPPBX.
With a conventional PBX, separate networks are necessary for voice and data communications. One of the main advantages of an IP PBX is the fact that it employs converged data and voice networks. This means that Internet access, as well as VoIP communications and traditional telephone communications, are all possible using a single line to each user. This provides flexibility as an enterprise grows, and can also reduce long-term operation and maintenance costs. Like a traditional PBX, an IP PBX is owned by the enterprise.
We are pleased to introduce HM Infotech as a professionally managed, vibrant and dynamic company engaged in Marketing and Servicing activities of Audio visual, System integration, Podcasting solutions, Audio-Video Conferencing solutions, Projectors, Projector Accessories, Interactive smart white board,Digital Multimedia Podium, Lecture capture, Virtual Classroom solution, Digital Signages, Professional Display and Video Wall solution, Document Camera, HD PTZ Camera, audience / student response system, writing and display solutions with sales and services networks at major locations across Vadodara, Gujarat , INDIA.
We believe that we differentiate ourselves from our competitors through good price and in depth understanding of unique customer needs. Our aim is to satisfy the customer. We emphasis on high quality of goods at an economical price. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcomes new and old customers from all walks of life to contact us for future business relationships and mutual success.
Home PA System
A public address or “PA” system is an electronic amplification system with a mixer, amplifier and loudspeakers, used to reinforce a given sound, e.g., a person making a speech, prerecorded music, or message, and distributing the sound throughout a venue. PA systems are often used in venues such as school churches, ,in institutional and commercial buildings, to read announcements or declare states of emergency. Intercom systems, which are often used in schools, also have microphones in each room so that the occupants can reply to the central office.
Over a period of time HM Infotech is diversified in to new areas Like AMC and FMS services for Computer peripherals, printers, plotters, cash counters, and equipment of various brands. We have a good group of technically qualified and experienced engineers on various platforms like Windows, UNIX and Linux operating systems. Our engineers are fully equipped to take care of problems related to servers and work stations of various brands. We also stock spares both in house and client locations based on the requirement.
Computer & CCTV Camara Amc Contract
We are engaged in providing efficient & effective Annual Maintenance Contract services that are offered at nominal prices. These services are rendered by a team of well trained personnel that provides complete maintenance solutions of laptops and desktops for any security or hardware related problems.
Owing to their cost effectiveness and timeliness, these services are most vouched for the following reasons:
- Error free services
- Prompt response
About Firewall System
A firewall is a network security system, either hardware- or software-based, that uses rules to control incoming and outgoing network traffic.
A firewall acts as a barrier between a trusted network and and an untrusted network. A firewall controls access to the resources of a network through a positive control model. This means that the only traffic allowed onto the network is defined in the firewall policy; all other traffic is denied.
History and types of firewalls
Computer security borrowed the term firewall from firefighting and fire prevention, where a firewall is a barrier established to prevent the spread of fire.
When organizations began moving from mainframe computers and dumb clients to the client-server model, the ability to control access to the server became a priority. Before firewalls emerged in the late 1980s, the only real form of network security was performed by access control lists (ACLs) residing on routers. ACLs determined which IP addresses were granted or denied access to the network.
The growth of the Internet and the resulting increased connectivity of networks meant that this type of filtering was no longer enough to keep out malicious traffic as only basic information about network traffic is contained in the packet headers. Digital Equipment Corp. shipped the first commercial firewall (DEC SEAL in 1992) and firewall technology has since evolved to combat the increasing sophistication of cyberattacks.
The earliest firewalls functioned as packet filters, inspecting the packets that are transferred between computers on the Internet. When a packet passes through a packet-filter firewall, its source and destination address, protocol, and destination port number are checked against the firewall’s rule set. Any packets that aren’t specifically allowed onto the network are dropped (i.e., not forwarded to their destination). For example, if a firewall is configured with a rule to block Telnet access, then the firewall will drop packets destined for TCP port number 23, the port where a Telnet server application would be listening.
Firewalls in the perimeterless age
The role of a firewall is to prevent malicious traffic reaching the resources that it is protecting. Some security experts feel this is an outdated approach to keeping information and the resources it resides on safe. They argue that while firewalls still have a role to play, modern networks have so many entry points and different types of users that stronger access control and security at the host is a better technological approach to network security.
Virtualization strategies such as virtual desktop infrastructure can dynamically respond to different scenarios by offering tailored access control to applications, files, Web content and email attachments based on the user’s role, location, device and connection. This approach to security does provide additional protection that a firewall can’t, but information security requires defense-in-depth, and firewalls still offer essential low-level protection as well as important logging and auditing functions.
As attacks against Web servers became more common, so too did the need for a firewall that could protect servers and the applications running on them, not merely the network resources behind them. Application-layer firewall technology first emerged in 1999, enabling firewalls to inspect and filter packets on any OSI layer up to the application layer.
The key benefit of application-layer filtering is the ability to block specific content, such as known malware or certain websites, and recognize when certain applications and protocols — such as HTTP, FTP and DNS — are being misused.
Firewall technology is now incorporated into a variety of devices; many routers that pass data between networks contain firewall components and most home computer operating systems include software-based firewalls. Many hardware-based firewalls also provide additional functionality like basic routing to the internal network they protect.
Firewall proxy servers also operate at the firewall’s application layer, acting as an intermediary for requests from one network to another for a specific network application. A proxy firewall prevents direct connections between either sides of the firewall; both sides are forced to conduct the session through the proxy, which can block or allow traffic based on its rule set. A proxy service must be run for each type of Internet application the firewall will support, such as an HTTP proxy for Web services.
How Server works
A server is a computer program that provides a service to another computer programs (and its user). In a data center, the physical computer that a server program runs in is also frequently referred to as a server. That machine may be a dedicated server or it may be used for other purposes as well.
programming model, a server program awaits and fulfills requests from client programs, which may be running in the same or other computers. A given application in a computer may function as a client with requests for services from other programs and also as a server of requests from other programs.
Types Of Servers
Here are a few other types of servers, among a great number of other possibilities:
- An application server is a program in a computer in a distributed network that provides the business logic for an application program.
- A proxy server is software that acts as an intermediary between an endpoint device, such as a computer, and another server from which a user or client is requesting a service.
- A mail server is an application that receives incoming e-mail from local users (people within the same domain) and remote senders and forwards outgoing e-mail for delivery.
- A virtual server is a program running on a shared server that is configured in such a way that it seems to each user that they have complete control of a server.
- A blade server is a server chassis housing multiple thin, modular electronic circuit boards, known as server blades. Each blade is a server in its own right, often dedicated to a single application.
- A file server is a computer responsible for the central storage and management of data files so that other computers on the same network can access them.
- A policy server is a security component of a policy-based network that provides authorization services and facilitates tracking and control of files.
Today our technological commodities include not of Walkman, landlines or the desktops. They comprise of headphones, Bluetooth, data cables, chargers. We have so much of data to store and so too many batteries to charge. Data transfer cables, adapters, and converters have made the technical aspects much easier like video streaming, battery charging, and transferring data from one device to another. The network cables come in various forms and for different purposes. They can include a data cable, video converter and USB to VGA converter, etc. These cables come with multiple conversions like USB to LAN, USB to VGA cable. It will make your transfers easy and less complicated. At ShopClues, you will find great offers on the network cables like HDMI cables and SATA cables.