Web Page Creation, Publishing, and Online Safety

Publishing a Web Page

Once you have finished the design and editing of your own static web page, you must publish it on the Internet. To do this, you will need:

  • An Internet Server Space: Generally, your Internet provider will offer you web space and a number of email accounts along with the connection services.
  • A File Transfer Program: Once you have web space to store your files, you will be given an FTP address, a username, and a password to transfer the files from your computer to the remote server.
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Essential Software and File Types: A Comprehensive List

Essential Software and File Extensions

Common File Extensions

  • .exe: Short for “executable,” it tells the operating system to run the program. Most Windows desktop programs use this extension.
  • .msi: For installation and removal of software within Windows. Opening an .msi file actually launches msiexec.exe, which reads the .msi file and does what it says. .msi files use Windows Installer, so think of it as standing for “Microsoft Installation.”
  • .app: Executes a program within OS X (as .exe does in Windows)
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Storage Devices: Types, Uses, and Comparisons

Optical Drives

Optical drives store data as a series of bumps. The way these bumps reflect a laser beam’s light is used to read the data off the disk.

  • CDs are used to hold large files and are ideal for storing music and animation files.
  • DVDs have a much larger capacity and are used for storing videos and films.

CD-ROM (Compact Disk Read-Only Memory)

Used for the distribution of software and music. With CD-ROM, data is read-only.

DVD-ROM (Digital Versatile Disk Read-Only Memory)

Used for the distribution

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Understanding Computer Systems: Hardware, Software, and Data

Computer Systems: Hardware, Software, and Data

A computer system is an information processing system based on computers. It is the set of physical elements (hardware) and logical elements (software) that allow the user to process information by equally efficient control of all possible resources.

The Physical Subsystem: Hardware

Hardware is the set of equipment or devices necessary for the effective treatment of information. It consists of electrical and electromechanical devices, circuits, and wires.

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C Array Operations: Insertion, Deletion, Search, and Sort

Array Insertion

This program demonstrates how to insert a new number into an array at a specified position.

#include <stdio.h>

void insert(int a[], int len, int pos, int num);

int main() {
    int a[10];
    int len, pos, num;

    printf("Enter the number of elements you want in an array\n");
    scanf("%d", &len);

    printf("Enter %d integers\n", len);
    for (int i = 0; i < len; i++)
        scanf("%d", &a[i]);

    printf("Enter the number you want to insert in an array\n"
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Mastering Excel 2007: Interface and Features

Books and Worksheets in Excel

The archives of a spreadsheet are called books. A book is composed of one or more worksheets. In its simplest form, a spreadsheet is a grid of rows and columns where data can be saved and formulas applied. The utility and power of spreadsheets lie in their ability to perform calculations using the information contained in the worksheet. Spreadsheets have the enormous advantage that if some of the data changes, it is not necessary to redo the calculations, since the results

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