Concept of Microsoft Excel | Features of Microsoft Excel

Concept of Microsoft Excel | Features of Microsoft Excel

Concept of Microsoft Excel (Spreadsheet Package) Microsoft Excel is a commercial spreadsheet application program written and distributed by Microsoft Company for Microsoft Windows and Mac OS X. it is used to input and calculates the data according to the need of users e.g. billing of sales procedure, voucher, salary sheet, income, and expenses statement, balance sheet budget preparation, grade calculation. The application areas of Excel are Basic mathematical calculation, financial modeling and analysis, statistical analysis, scientific and engineering calculation, database management, graphic presentation, database front end, and developing a custom…

What is Mainframe Computer? | Advantages & Disadvantages of Mainframe Computer

What is Mainframe Computer:  A mainframe computer is a large computer with hundreds of processors. It can process a larger amount of smaller tasks quickly. A mainframe computer is smaller than a supercomputer. The supercomputer is the larger and fastest computer ever made. Mainframe computers have the size of a refrigerator. Before 2000, these computers were big in size covering the whole room. But now these computers have decreased in size and improve in performance. It occupies very largely with an approximate area of 1000 sq. ft. it supports a…

Types of Operating Systems

Types of Operating Systems

Types of Operating systems All of this history and development has left us with a wide variety of operating systems, not all of which are widely known let’s start with types of operating systems. Mainframe Operating Systems: A mainframe with 1000 disks and thousands of gigabytes of data is not unusual. Mainframes are normally used as web servers, servers for large-scale electronic commerce sites, and servers for business-to-business transactions. The operating systems for mainframes are heavily oriented toward processing many jobs at once, most of which need heavy amounts of…