Saturday, 2 September 2017

Excel books


Excel is an Electronic Spreadsheet Program.
An electronic spreadsheet is a computer software program that is used for storing, organizing and manipulating data.
Electronic spreadsheet programs were originally based on paper spreadsheets used for accounting. As such, the basic layout of computerized spreadsheets is the same as the paper ones. Related data is stored in tables - which are a collection of small rectangular boxes or cells organized into rows and columns.
Current versions of Excel and other spreadsheet programs can store multiple spreadsheet pages in a single computer file.
The saved computer file is often referred to as a workbook and each page in the workbook is a separate worksheet.

Other common operations that Excel can be used for include:
  • Graphing or charting data to assist users in identifying data trends;
  • Formatting data to make important data easy to find and understand;
  • Printing data and charts for use in reports;
  • Sorting and filtering data to find specific information;
  • Linking worksheet data and charts for use in other programs such as Microsoft PowerPoint and Word;
  • Importing data from database programs for analysis.

Friday, 1 September 2017

Cloud Computing

Definition of cloud computing:-

Simply put, cloud computing is the delivery of computing services—servers, storage, databases, networking, software, analytics and more—over the Internet (“the cloud”). Companies offering these computing services are called cloud providers and typically charge for cloud computing services based on usage, similar to how you are billed for water or electricity at home.

Uses of cloud computing:-

You are probably using cloud computing right now, even if you don’t realise it. If you use an online service to send email, edit documents, watch movies or TV, listen to music, play games or store pictures and other files, it is likely that cloud computing is making it all possible behind the scenes. The first cloud computing services are barely a decade old, but already a variety of organisations—from tiny startups to global corporations, government agencies to non-profits—are embracing the technology for all sorts of reasons. Here are a few of the things you can do with the cloud:
  • Create new apps and services
  • Store, back up and recover data
  • Host websites and blogs
  • Stream audio and video
  • Deliver software on demand
  • Analyse data for patterns and make predictions


1. Cost

Cloud computing eliminates the capital expense of buying hardware and software and setting up and running on-site datacenters—the racks of servers, the round-the-clock electricity for power and cooling, the IT experts for managing the infrastructure. It adds up fast.

2. Speed

Most cloud computing services are provided self service and on demand, so even vast amounts of computing resources can be provisioned in minutes, typically with just a few mouse clicks, giving businesses a lot of flexibility and taking the pressure off capacity planning.

3. Global scale

The benefits of cloud computing services include the ability to scale elastically. In cloud speak, that means delivering the right amount of IT resources—for example, more or less computing power, storage, bandwidth—right when its needed and from the right geographic location.

4   . Productivity
On-site datacenters typically require a lot of “racking and stacking”—hardware set up, software patching and other time-consuming IT management chores. Cloud computing removes the need for many of these tasks, so IT teams can spend time on achieving more important business goals.

5. Performance

The biggest cloud computing services run on a worldwide network of secure datacenters, which are regularly upgraded to the latest generation of fast and efficient computing hardware. This offers several benefits over a single corporate datacenter, including reduced network latency for applications and greater economies of scale.

6. Reliability

Cloud computing makes data backup, disaster recovery and business continuity easier and less expensive, because data can be mirrored at multiple redundant sites on the cloud provider’s network.

Types of cloud services:-

Most cloud computing services fall into three broad categories: infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (Saas). These are sometimes called the cloud computing stack, because they build on top of one another. Knowing what they are and how they are different makes it easier to accomplish your business goals.

Infrastructure-as-a-service (IaaS)

The most basic category of cloud computing services. With IaaS, you rent IT infrastructure—servers and virtual machines (VMs), storage, networks, operating systems—from a cloud provider on a pay-as-you-go basis. To learn more, see What is IaaS?

Platform as a service (PaaS)

Platform-as-a-service (PaaS) refers to cloud computing services that supply an on-demand environment for developing, testing, delivering and managing software applications. PaaS is designed to make it easier for developers to quickly create web or mobile apps, without worrying about setting up or managing the underlying infrastructure of servers, storage, network and databases needed for development. To learn more, see What is PaaS?

Software as a service (SaaS)

Software-as-a-service (SaaS) is a method for delivering software applications over the Internet, on demand and typically on a subscription basis. With SaaS, cloud providers host and manage the software application and underlying infrastructure and handle any maintenance, like software upgrades and security patching. Users connect to the application over the Internet, usually with a web browser on their phone, tablet or PC. To learn more, see What is SaaS?

Cloud deployment types:-

Not all clouds are the same. There are three different ways to deploy cloud computing resources: public cloud, private cloud and hybrid cloud.

Public cloud

Public clouds are owned and operated by a third-party cloud service provider, which deliver their computing resources like servers and storage over the Internet. Microsoft Azure is an example of a public cloud. With a public cloud, all hardware, software and other supporting infrastructure is owned and managed by the cloud provider. You access these services and manage your account using a web browser.
Private cloud
A private cloud refers to cloud computing resources used exclusively by a single business or organisation. A private cloud can be physically located on the company’s on-site datacenter. Some companies also pay third-party service providers to host their private cloud. A private cloud is one in which the services and infrastructure are maintained on a private network.

Hybrid cloud

Hybrid clouds combine public and private clouds, bound together by technology that allows data and applications to be shared between them. By allowing data and applications to move between private and public clouds, hybrid cloud gives businesses greater flexibility and more deployment options.

How it works:-

Cloud computing services all work a little differently, depending on the provider. But many provide a friendly, browser-based dashboard that makes it easier for IT professionals and developers to order resources and manage their accounts. Some cloud computing services are also designed to work with REST APIs and a command-line interface (CLI), giving developers multiple options.

Tuesday, 29 August 2017


High speed connectivity at 25 Gbps

Mouser Electronics, Inc., the industry’s leading New Product Introduction (NPI) distributor with the widest selection of semiconductors and electronic components, is now stocking the Sliver internal cabled interconnects from TE Connectivity (TE), a global leader in connectivity and sensors. Helping to address the latest high-speed demands in networking, TE’s Sliver internal cabled interconnects offer improved performance and extended reach while also saving space and lowering design costs for data rate signals within a variety of data communication platforms.
TE’s Sliver internal cabled interconnects, available from Mouser Electronics, address expanding network challenges experienced by designers by providing a flexible, robust and cost-effective system that can help manage large workloads and higher data rates (at 25 Gbps and beyond) and support longer-term data growth. Designed to work alongside a cable assembly as a surface-mounted connector with an exceptionally small footprint, Sliver internal cabled interconnects enable designers to make a seamless, simple connection from point A to point B by incorporating a high-density connector and cable assembly that routes high-speed signals from the microprocessors to other locations such as other boards, microprocessor chips, and inputs/outputs (I/O). This solution helps eliminate the need for re-timers and costlier, lower-loss printed circuit board (PCB) materials, simplifying design and lowering overall costs.
Delivering excellent return loss and crosstalk performance, all while providing a low-loss link, TE’s Sliver internal cabled interconnects can be used across many 85- and 100-Ohm applications, data rates and protocols (including Ethernet, PCIe, SAS, SATA and InfiniBand). The unique robust metal housing on the connector cage helps withstand cable pull, and an active latch on the housing provides additional connection security. All Sliver internal cabled interconnects support present and future bandwidth needs without requiring re-qualification and redesign.
TE’s Sliver internal cabled interconnects are available in a super-slim design with a 0.6 mm contact pitch. Target applications include data center and networking equipment, such as routers, switches, servers, high-performance computing (HPC), and storage devices.

invention of cellphones

Do you know who invented cell phones?

  • 1873: British physicist James Clerk Maxwell (1831–1879) published the theory of electromagnetism, explaining how how electricity can make magnetism and vice-versa. Read more about his work in our main article on magnetism.
  • 1876: Scottish-born inventor Alexander Graham Bell (1847–1922) developed the first telephone while living in the United States (though there is some dispute about whether he was actually the original inventor). Later, Bell developed something called a "photophone" that would send and receive phone calls using light beams. Since it was conceived as a wireless phone, it was really a distant ancestor of the modern mobile phone.
  • 1888: German physicist Heinrich Hertz (1857–1894) made the first electromagnetic radio waves in his lab.
  • 1894: British physicist Sir Oliver Lodge (1851–1940) sent the first message using radio waves in Oxford, England.
  • 1899: Italian inventor Guglielmo Marconi (1874–1937) sent radio waves across the English Channel. By 1901. Marconi had sent radio waves across the Atlantic, from Cornwall in England to Newfoundland. Marconi is remembered as the father of radio, but pioneers such as Hertz and Lodge were no less important.
  • 1906: American engineer Reginald Fessenden (1866–1932) became the first person to transmit the human voice using radio waves. He sent a message 11 miles from a transmitter at Brant Rock, Massachusetts to ships with radio receivers in the Atlantic Ocean
  • 1920s: Emergency services began to experiment with cumbersome radio telephones.
  • 1940s: Mobile radio telephones started to become popular with emergency services and taxis.
  • 1946: AT&T and Southwestern Bell introduced their Mobile Telephone System (MTS) for sending radio calls between vehicles.
  • 1960s: Bell Laboratories (Bell Labs) developed Metroliner mobile cellphones on trains.
  • 1973: Martin Cooper (1928–) of Motorola made the first cellphone call using his 28-lb prototype DynaTAC phone.
  • 1975: Cooper and his colleagues were granted a patent for their radio telephone system. Their original design is shown in the artwork you can see here.
  • 1978: Analog Mobile Phone System (AMPS) was introduced in Chicago by Illinois Bell and AT&T.
  • 1982: European telephone companies agreed a worldwide standard for how cellphones will operate, which was named Groupe Speciale Mobile and later Global System for Mobile (GSM) telecommunications.
  • 1984: Motorola DynaTAC became the world's first commercial handheld cellphone. 
  • 1995: GSM and a similar system called PCS (Personal Communications Services) were adopted in the United States.
  • 2001: GSM had captured over 70 percent of the world cellphone market.
  • 2000s: Third-generation (3G and 3.5G) cellphones were launched, featuring faster networks, Internet access, music downloads, and many more advanced features based on digital technology.
  • 2007: Apple's iPhone revolutionized the world of cellphones, packing what is effectively a touch-controlled miniature computer into a gadget the same since as a conventional cellular phone.
  • 2011: World Health Organization published view that cellphones are "possibly carcinogenic" to humans.
  • 2013: Cellphones celebrate their 40th anniversary.
  • 2017: celebrating 44th anniversary.

Thursday, 24 August 2017



  • Setting up goals and objectives:
                                              Define your objectives and goals .Create smart goals.

  • Identify your customers:
                                              Find your most ideal customer an it starts with identifying potential ones.

  • Know your competitors:
                                              Knowing your competitors to have an upper hand in the digital space.

  • Team:
               Train and assign your teams to job roles that they have experience in.

  • Search engine marketing:
                                                Having a deep understanding on how search engine optimization works is vital for your success.

  • Content marketing:
                                     User content to reach to a wide range of audience as well as resonating with them.

  • Social media marketing:
                                             Leverage the true power of social marketing to beat your competitors in the digital world.

  • Email marketing:
                                 Start an email list and build a loyal following.Emails can be penetration.

  • Mobile marketing:
                                    Take steps to optimize your marketing with/through mobile marketing.

  • Affiliate marketing:
                                    It can build your bran and increase visibility if done right.

Wednesday, 2 August 2017


  Central government has released notification for the posts of junior clerks in parliament of INDIA. Who are looking for central government jobs can apply for this can apply on official website 

           starting date:10th July, 2017
           ending date:9th august,2017 till 5pm
           job location:INDIA
         name of post: clerk in parliament of India
          job category:central government
Selection process:

  • written exam(preliminary,main)
  • interview
         Applicant should posses Bachelor'rs degree or Master degree in relevant field with minimum marks from university or educational institute and should have fast typing skills.

Age limit:
  • 27 year
  • Age relaxation is applicable  to reserved candidates

             for more details visit official site



The common admission test(CAT)2017 for admissions to IIM will be conducted across 140 centers on 26th November,2017.
       Registration begins on 9th august,2017 and will continue till  5pm on 20th September,2017.     

    Candidates can download admit cards from 18th October till test date.Results will be declared in January  2018.
      IIM Lucknow is the convener for the test this year.Nearly 4,000 seats are available for the grabbers.
             Qualification: Bachelor's degree with atleast 50% marks or equivalent CPGA awarded by any university or educational institution or incorporate  by an Act of the parliament are state legislature in INDIA or declared to be deemed as a university under section 3,of the UGC Act,1956 can apply.
                       For more details visit

Excel books