Explain the components of a TPS, its limitations compared to MIS, and the purpose of a school information system. Also, describe impact and laser printers and identify a key advantage of impact printe

Here are the answers to your questions:

1. (i) a) Three components of a Transaction Processing System (TPS) are:

   • Input: Data entry, such as sales orders or payroll information.
   • Processing: Operations like calculations, sorting, and updating records.
   • Output: Reports, invoices, or updated databases.

   b) Two limitations of TPS compared to Management Information Systems (MIS) are:

   • TPS primarily handles routine, day-to-day transactions and provides little analytical capability for decision-making.
   • TPS focuses on data collection and processing rather than generating summarized reports or forecasts needed by management.

   c) The purpose of a school information system is to manage and automate administrative and academic processes within an educational institution. The expected goal is to improve efficiency, communication, and decision-making by centralizing data related to students, staff, courses, and finances.

2. (ii) a)

   • Impact Printer:
     1. They create images by striking an ink ribbon against the paper.
     2. They are typically noisy during operation.
   • Laser Printer:
     1. They use a laser beam and toner to create images on paper.
     2. They are known for high-speed and high-quality printing.

   b)

   • Impact Printer: Can print multi-part forms (carbon copies) due to the physical impact.
   • Laser Printer: Produces sharp, high-resolution text and graphics quickly.

   c) Another type of printer is an Inkjet printer.

3. (iii) a)

   • 1st Generation Computers: Used vacuum tubes as their primary electronic component.
   • 3rd Generation Computers: Used integrated circuits (ICs), making them smaller and faster.

   b) Two characteristics that determine the power of a laptop computer are:

   • Processor Speed (CPU): A faster processor (e.g., higher clock speed, more cores) allows the laptop to execute instructions and perform calculations more quickly, improving overall responsiveness.
   • Random Access Memory (RAM): More RAM allows the laptop to run multiple applications simultaneously and handle larger datasets without slowing down, as it provides temporary storage for active programs and data.