Posts

Viruses S.1

  A computer virus is  a type of malicious software (malware) that can spread between computers and cause damage to data and software .  The goal of a computer virus is to disrupt systems, cause major operational issues, and result in data loss and leakage.   The common kinds of computer viruses are: 1. File Infector Viruses: Infect executable files (.exe, .com, .dll) by attaching themselves to the code of legitimate  programs.  Examples: Cascade, CIH, Sasser. 2. Boot Sector Viruses: Infect the master boot record (MBR) or boot sector of storage devices,  enabling them to execute before the operating system loads. Examples: Stoned, Michelangelo. 3. Macro Viruses: Written in macro language and embedded within documents (e.g., Word, Excel)  and spreadsheets. Spread through infected documents when opened with compatible software. Examples: Melissa, Concept. 4. Polymorphic Viruses: Employ encryption and code mutation techniques to change their appearan...

CARE AND SAFETY OF ICT TOOLS S.1

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QN1. Suggest safety measures for ICT tools in your school? 2. Identify the ICT tools that cane be found in the computer lab and state their uses? Care and safety of ICTs    1. Use strong password to ensure only authorized users can access ICT tools.   2. Make sure all software and hardware are regularly updated .   3. Use Antivirus Softwares to detect and remeove malware   4. Encrypt sensitive data stored on ICT tools to prevent unauthorized access in case of theft .   5. Always perform regular data backups to prevent data loss in case of system failures.   6. Use monitoring tools to track ICT usage and detect any suspicious activities.   7. Secure ICT equipment and infrastructure in locked rooms to prevent unauthorized access or tampering.  8. Keep dust away using dust blower, mopping the ICT Room.  9. have your windows burglar proofed    COMPUTER LABORATORY   A computer lab is a designate...

Data Processing cycle S.1

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The ccycle from when data is input into a computer upto when it is out put as information is called Data processing cycle. The data processing cycle cycle undergoes 4 stages 1. input 2. precessing 3. output 4. storage Data is first collected and entered in a computer as an INPUT by input devices like mouse, keyboard. Data is then sent to the central precessing unit (CPU) for processing and the result is information. (OUTPUT)

WebDesign S.4

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TERMINOLOGIES USED IN WEBPAGE DESIGN Web authoring softwares   – these are application /software programs that allow webpages to be visually created. It generates the required HTML code for the pages. Examples of web designing software include Word Press, Joomla, MS front page, adobe Dreamweaver, notepad, wampserver, color wheel Webmaster - is a person who Creates and manages the information content (words and pictures) of a Web site or does both. Website Hosting - Service that allows individuals and organizations to have their own websites accommodated on a particular web server Web hosts - are companies that provide space (web hosting) on a server they own for use by their clients. A web site can also be hosted on a home or private server in a home or local area network. Website - Collection of related hyperlinked web pages hosted on a particular webserver on the World Wide Web (www).  WWW – Worldwide web, is the interconnection of computers in the whole ...