Wednesday, December 18, 2019

Hello World – First C++ Program

In this guide we will write and understand the first program in C++ programming. We are writing a simple C++ program that prints “Hello World!” message. Lets see the program first and then we will discuss each and every part of it in detail.

Friday, December 6, 2019

Electro-mechanical Counting Devices (continued) JSS 1 First Term (4th Week Lesson note)

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ELECTRO-MECHANICAL COUNTING DEVICES

CONTENT
  1. Electro-mechanical Counting Devices

Electro-mechanical Counting Devices JSS 1 First Term (3rd Week Lesson note)

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HISTORICAL DEVELOPMENT OF COMPUTERS

CONTENT
  1. Electro-mechanical Counting Devices

Electro-mechanical Counting Devices

These are counting devices that could be operated both electrically and mechanically. Electro-mechanical devices include the following:

Mechanical Counting and Calculating Devices JSS 1 First Term (2nd Week Lesson note)

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MECHANICAL COUNTING AND CALCULATING DEVICES

CONTENT
  1. Mechanical Counting and Calculating Devices

Mechanical Counting and Calculating Devices

As a result of the disadvantages of the early counting devices, more advanced mechanical counting and calculating devices were invented. Some of these devices are;

HISTORICAL DEVELOPMENT OF COMPUTERS: EARLY COUNTING DEVICES JSS 1 First Term (1st Week Lesson note)





HISTORICAL DEVELOPMENT OF COMPUTERS: EARLY COUNTING DEVICES

CONTENT
  1. Definition and Examples of Early Counting Devices
  2. Limitations to the Early Counting Devices

Definition and Examples of Early Counting Devices

Early counting devices are devices that were used in the early days to perform arithmetic operations such as addition of numbers, subtraction and multiplication. These devices were used for the usual barter trade of the early days.