Long Answer Type Questions: Types of Software | Computer Applications for Class 9 PDF Download

Q.1. What are hybrid apps?

Hybrid apps are a mixture of both native and mobile web apps and therefore target multiple platforms. This type of application has cross-platform compatibility but can still access phone's hardware. Softwares used to develop these apps are generally HTML, CSS, Javascript, JQuery, Mobile Javascript frameworks, Cordova/PhoneGap, etc.

Q.2. Explain the working of a: Interpreter and Compiler

Q.3. Describe the use of accounting management software.

Accounting software is a class of computer programs that enable you to manage your business's financial transactions. Such programs can vary widely in scope, with some programs designed for little more than simple bookkeeping and some designed to manage the entire financial comings and goings of large businesses. Using accounting software helps companies to use the resources in their accounting departments efficiently, and can reduce costly bookkeeping mistakes.

Q.4. What is the function of encrytion/decryption tool?

Encryption is the conversion of electronic data into another form, called ciphertext, which cannot be easily understood by anyone except authorized parties. The primary purpose of encryption is to protect the confidentiality of digital data stored on computer systems or transmitted via the Internet or other computer networks.
Decryption is the process of transforming data that has been rendered unreadable through encryption back to its unencrypted form. In decryption, the system extracts and converts the garbled data and transforms it to texts and images that are easily understandable not only by the reader but also by the system.

Q.5. What are presentation tools used for?

Presentation Tool is a software that facilitates the creation of presentations on any particular topic. A presentation is a combination of slides, handouts, notes and outlines all kept in a single file. It is possible to add text, graphics, photos, clip art, sound and video to your slides.

Q.6. What is the significance of using a billing system?

It provides many facilities to the people working through it. In the billing process one simply have to add the information into the data base and all the calculations are done by the billing services provider itself. It handles all the data merging, copying from the sources and application of different formulas on it to get the required results for the company. It helps to maintain the system of the costumers, their records and helps to ensure the working of the entire system of the company.