Answer : IT Tools and Business Systems - July 2021

 Answer : IT Tools and Business Systems - July 2021

1. Multiple Choice

1.1 : B

1.2 : C

1.3 : D

1.4 : B

1.5 : B

1.6 : D

1.7 : B

1.8 : A

1.9 : C

1.10 : C

Solved IT Tools and Business Systems (Jan 2021)

 Solved IT Tools and Business Systems (Jan 2021) NIELIT O Level

Part one

Each question below gives a multiple choice of answer . choose the most appropriate one and enter in the "OMR" answer sheet upplied with the question paper , following therein.

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Descritive Answer : IT TOOLS & BUSINESS SYSTEMS Jan-2018 | NIELIT O Level

 Q. 5 (A) : Write the comparison Between Dot Matrix Printers & Laser Printers with respect to Print Quality, Speed, Noise and cost parameters.

Answer

Print Quality

A typical laser printer has a resolution of 1,200 dots per inch, or dpi. It achieves this level of detail through the use of microscopic toner powder, high-performance electronics and precision optics. Many laser printers have color capability at the same high resolution. Some dot matrix printers achieve 240 dpi by making repeated passes over the same printed area, though documents produced this way take at least twice as long to print as those printed at normal quality. As a dot matrix printer's output color depends on the ribbon, virtually none offer choices beyond black and red.

Speed

A typical desktop laser printer turns out about four full-color pages per minute; for black-and-white text, this rises to 25 pages per minute. Dot matrix printers are typically rated at between 200 and 600 characters per second, or about 50 pages per minute in draft mode. Some high-output dot matrix printers achieve 1,100 characters per second, or 100 pages per minute, although the print quality is low-resolution text.

Descriptive Answer : NIELIT IT Tools and Business Systems (July 2018)

Q. 5 (A) :  Write a short note on storage devices of computer.
Answer : 

Examples of Storage Device

Answer : IT Tools and Business Systems (January 2019)

Q. 5 (A) : Explain about Multitasking operating system in detail.

Answer :

Multitasking, in an operating system, is allowing a user to perform more than one computer task (such as the operation of an application program) at a time. The operating system is able to keep track of where you are in these tasks and go from one to the other without losing information. Microsoft Windows 2000, IBM's OS/390, and Linux are examples of operating systems that can do multitasking (almost all of today's operating systems can). When you open your Web browser and then open Word at the same time, you are causing the operating system to do multitasking.

Descriptive Question Answer NIELIT (O-Level ) IT Tools and Business Systems (July 2019)

Answer IT Tools and Business Systems (July 2019)

Q 5 (A) . Define Computer. Explain the main characteristics of Computer.

Answer :

Computer

A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.