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Definition: Computer hardware refers to the physical, tangible parts or electronic components of a computer system that can be seen and touched.
Hardware is divided into five core categories:
RAM (Random Access Memory) is temporary, volatile working memory used only while programs are running; it is cleared when the computer is turned off. Storage (SSD/HDD) is permanent, non-volatile memory used to preserve files indefinitely.
Definition of Software: A set of programs, instructions, and data that tells computer hardware what to do. Unlike hardware, software is intangible and cannot be physically touched.
Interdependence: Hardware and software must work together. Without software, hardware is completely useless; without hardware, software has no machine on which to run.
| Feature | System Software | Application Software |
|---|---|---|
| Purpose | Manages, controls, and coordinates computer hardware operations. | Enables end-users to accomplish specific user tasks. |
| Examples | Operating Systems: Microsoft Windows 11, Apple macOS, Linux, Android. | Microsoft Word (assignments), PowerPoint (slides), Chrome (browsing), Excel. |
| Independence | Runs independently as soon as the computer is turned on. | Cannot run without an underlying operating system. |
| User Interaction | Works mainly in the background managing files and devices. | Users interact directly with its features to do schoolwork. |
Definition: Computer maintenance refers to the routine care, cleaning, and diagnostics carried out to keep computer systems operating reliably and efficiently, and to prevent breakdowns.
Four Reasons Why Maintenance is Essential:
Hardware Care: Wiping dust off screens/keyboards with a lint-free microfiber cloth or compressed air; keeping liquids and snacks away; gentle cable management.
Software Care: Running antivirus definitions updates; installing operating system patches; removing temporary files; performing proper shutdown via the Start Menu (never pulling out the plug!).
Data: Raw, unorganized facts, numbers, or symbols without context (e.g. 45, 60, 75, 80). By themselves, they are not meaningful.
Information: Processed, organized data that has been given context and meaning (e.g. "Student Term Average = 65% with Grade B").
Data Processing: The sequence of steps taken to convert raw data into meaningful and useful information.
1. Input Stage: Subject teachers type student marks into the school system using a keyboard.
2. Processing Stage: The computer calculates totals, computes class averages, and determines student grade positions.
3. Output Stage: The system displays the final scores on screen and prints student report cards.
4. Storage Stage: Student report sheets and transcripts are permanently archived to the school SSD server for future academic records.
Complete, student-friendly worked solutions for all the weekly worksheets we used in class from Week 1 to Week 4. Review the official full-credit model answers, see alternative ways to phrase your answers, and learn Mr. Caleb's pointers to avoid common mistakes.
Click your chosen answer for each question. Hit 'Submit & Grade CBT' to view your score and full teacher rationale.
Type your structured answers in the response fields below. These practice questions mirror the exact format, cognitive difficulty, and time allocation of CAT 1 Theory without repeating live examination questions. Click 'Reveal Mark Scheme & Model Answer' to evaluate your response against official grading criteria.