SCHEME OF WORK FOR – COMPUTER SS2

FIRST TERM

  1. Central processing unit (CPU)
  2. Memory

Primary and secondary memory

components of primary memory units; Rom and Ram

 

  1. Logic circuits i  -Definition pf a comparator is required
  2. Logic circuits ii
  3. Computer data conversion

SECOND TERM

  1. Concept of computer files
  2. Handling computer files
  3. Word processing
  4. Systems development life cycle

THIRD TERM

  1. Program development
  2. Algorithms and flow charts
  3. Basic programming ii
  4. Internet
  5. Electronic mail services

 

 

 

COMPUTER-STUDIES – WAEC 2023-2024

Lessons

HA’YHWH🛐 YESHUA🛐 HAMASCHIAC 🛐 SCHOOL, Computer Studies SS2 FIRST/ HA’YHWH🛐🛐🛐 YESHUA🛐🛐 HAMASCHIAC🛐🛐 TERM, Computer Studies, Lesson 2. Memory

Length: 10 minutesAuthor: Adaokwu Ihenacho EmenikeComplexity: Easy

  A memory is just like a Man’s (in the generic) brain. It is used to store data and instructions. Computer memory is the storage space in the computer, where data is to be processed and instructions required for processing are stored. The memory is divided into large number of small parts called cells. Each ….  Read More

HA’YHWH🛐 YESHUA🛐 HAMASCHIAC 🛐 SCHOOL, Computer Studies SS2 FIRST/ HA’YHWH🛐🛐🛐 YESHUA🛐🛐 HAMASCHIAC🛐🛐 TERM, Computer Studies, Lesson 3. Computer Memory : Types of Computer Memory (RAM and ROM) in The Primary Memory

Length: 10 minutesAuthor: Adaokwu Ihenacho EmenikeComplexity: Easy

  Types of Computer Memory (RAM and ROM) in The Primary Memory Introduction As you might know, RAM and ROM are two different types of memory available in the Computer system. But have you ever wondered how the system Operating System uses this memory to perform various tasks and how many categories they are divided into? In ….  Read More

HA’YHWH🛐 YESHUA🛐 HAMASCHIAC 🛐 SCHOOL, Computer Studies SS2 FIRST/ HA’YHWH🛐🛐🛐 YESHUA🛐🛐 HAMASCHIAC🛐🛐 TERM, Computer Studies, Lesson 4. Computer Memory : Secondary Memory in Computer..

Length: 10 minutesAuthor: Adaokwu Ihenacho EmenikeComplexity: Easy

    Secondary Memory The secondary storage devices which are built into the computer or connected to the computer are known as a secondary memory of the computer. It is also known as external memory or auxiliary storage. The secondary memory is accessed indirectly via input/output operations. It is non-volatile, so permanently stores the data ….  Read More

HA’YHWH🛐 YESHUA🛐 HAMASCHIAC 🛐 SCHOOL, SS2 FIRST/ HA’YHWH🛐🛐🛐 YESHUA🛐🛐 HAMASCHIAC🛐🛐 TERM, Computer Studies, Lesson 5. Computer Memory: -Comparative Study of Auxiliary Storage Devices in Respect of their Size, Speed and Technology.

Length: 10 minutesAuthor: Adaokwu Ihenacho EmenikeComplexity: Easy

    Computer Memory: -Comparative Study of Auxiliary Storage Devices in Respect of their Size, Speed and Technology.       Auxiliary memory Auxiliary memory units are among computer peripheral equipment. They trade slower access rates for greater storage capacity and data stability. Auxiliary memory holds programs and data for future use, and, because it is nonvolatile (like ….  Read More

HA’YHWH🛐 YESHUA🛐 HAMASCHIAC 🛐 SCHOOL, SS2 FIRST/ HA’YHWH🛐🛐🛐 YESHUA🛐🛐 HAMASCHIAC🛐🛐 TERM, Computer Studies, Lesson 6. Logic Circuits in Computer.

Length: 10 minutesAuthor: Adaokwu Ihenacho EmenikeComplexity: Easy

    Logic gate (AND, OR, XOR, NOT, NAND, NOR and XNOR) Please, as you go through this lesson,  kindly click on the embedded  links for further explanations and study A logic gate is a device that acts as a building block for digital circuits. They perform basic logical functions that are fundamental to digital circuits. ….  Read More

HA’YHWH🛐 YESHUA🛐 HAMASCHIAC 🛐 SCHOOL, SS2 FIRST/ HA’YHWH🛐🛐🛐 YESHUA🛐🛐 HAMASCHIAC🛐🛐 TERM, Computer Studies, Lesson 7. Logic Circuits – Comparator.

Length: 10 minutesAuthor: Adaokwu Ihenacho EmenikeComplexity: Easy

    Comparator A comparator is a computing element with two input wires and two output wires, called the top and bottom wires.   In electronics, a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. It has two analog input terminals �+ and �− and one binary digital output �o. The output is ideally �o={1,if �+>�−,0,if �+<�−. A ….  Read More

HA’YHWH🛐 YESHUA🛐 HAMASCHIAC 🛐 SCHOOL, SS2 FIRST/ HA’YHWH🛐🛐🛐 YESHUA🛐🛐 HAMASCHIAC🛐🛐 TERM, Computer Studies, Lesson 8. Computer Data Conversion.

Length: 10 minutesAuthor: Adaokwu Ihenacho EmenikeComplexity: Easy

  Computer Data Conversion What Does Data Conversion Mean? Data conversion is the conversion of one data format into another. It is a technical process mostly done by software, although rarely hardware or man’s intervention is used. The sole purpos se of the data conversion is to enable interoperability and to maintain all of the ….  Read More