Introduction to Computers. Assignment 1 Essay

1520 Words Dec 27th, 2012 7 Pages
Introduction to Computers

Written Assignment 1

Chapter 1
1. What is the most important difference between a computer and a calculator

A calculator can only process numerical data, which means, it can only work with numbers, but a computer can process alphanumerical data, such as numbers, letters, graphics, pictures, video, audio files and much more. A calculator can only be programmed to calculate numbers. A computer can use thousands different programs.

2. How are computers today similar to those from World War II? How are they different?

Similar: Computers today and those from World War II both had to be programmed. They both receive input and process information, produce output and store data.

Different:
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Every computer processes instructions in a native machine language, which uses numeric codes. Most programmers use programming languages, such as C++, C#, Java, and Visual Bacis.NET to write programs. These languages are called high-level languages. They make possible for scientists, engineers, and businesspeople to sole problems using familiar terminology rather than cryptic machine instructions.

12. Most computer software falls into one of three categories: compilers and other translator programs, software applications, and system software. Describe and give examples of each

Compiler – is a one of the translator programs that compiles a complete translation of the program from a high-level computer language into machine language before the program runs for the first time.

Software applications – different software applications are used by computer users, such as publishing, accounting, graphic, multimedia, educational programs, and many more. The software applications can be bought similar to buying movies on DVD, but with some differences. A computer software generally includes documentation, which explains how to install, uninstall, and use the software. A software can be updated. A software must be comparable with the operating system on the computer. The software comes with disclaimers. When you are buying a software, you are not actually buying the program, but rather a

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