Binary Number System

Binary numbers are made up of only 0s and 1s. In the binary system, we represent numbers to the base of 2 and the positional multipliers are the powers of 2. The rightmost bit has the smallest positional weight and is known as the least significant bit. The leftmost bit has the largest positional weight and known as the most significant bit.

When counting using binary, we start at 0 and then 1. There is no symbol for 2 and therefore, you should go back to at 0 again but add 1 on the left. The figure below will help you to understand how we count using binary.

Binary

0…………………….start at 0

1…………………….then 1

10………………….start back at 0 and 1 on the left

11…………………..1 more

100………………. Again, start back at 0. Then, add one to the digit on the left… but that digit is already at 1, therefore, it also goes back to 0… and 1 is then added to the next on the left

101

110

111

1000………….For all three digits, start at 0 again and 1 on the left

Because of its easy implementation in digital electronic circuitry, binary numbers have many uses. The binary system is used by nearly all computers and computer-based devices.

References

https://www.mathsisfun.com/binary-number-system.html

https://www.mathsisfun.com/binary-number-system.html

Four Tips to Understand Mathematics

Many students find mathematics stressful and disengaging, with some even identifying it as their most-hated” subject. However, mathematics is an essential and exciting part of our world. It enables cutting-edge developments within a wide array of important fields, such as business, science, and technology. The following tips will help you to understand mathematics better.

Confidence

A lot of students find math difficult because they “believe” they cannot understand the material or solve the exercises, even before they begin. Students should approach mathematical work with a positive attitude and confidence.

Time management

If you are stuck on one problem for too long, it is advisable to move to the next problem. Come back to the first question after taking a break. You will be surprised at what a fresh viewpoint and a break can provide.

Start with simple examples

If you want to learn a new topic effectively, engage with simple examples. Construct simple or look at applied examples involving abstract mathematical formula. The simple situations provide the basis for the individual to understand the more abstract setting.

Avoid being a spectator

Actively watching a teacher solve mathematical problems has little educational benefits. We learn mathematics by doing them.

References

http://bookboon.com/blog/2012/11/5-tips-to-understand-mathematics-by-dr-chris-tisdell/

http://getcollegecredit.com/blog/article/10_math_study_tips_that_will_make_you_a_better_student

Functions of a Central Processing Unit (CPU)

The Central Processing Unit is the computer system. It carries out arithmetic operations and controls input, output and storage units. CPU functions can be classified into two categories: Co – coordinating all computer operations and performing arithmetic and logical operations on data.

The CPU has three main components: Arithmetic and Logic Unit, Control Unit and Registers. The arithmetic and logic unit is the CPU part where computations take place. It has circuits that perform arithmetic operations on data that is received from the memory and are capable of comparing numbers. The control unit controls and directs the activities of the computer system. In short, it interprets the instructions derived from the main computer memory; send the control signals to devices that execute instructions. Registers are high-speed memories that store data for immediate processing.

The CPU is like a calculator, but very powerful. Its main function is to carry out arithmetic and logical operations on data. It is controlled by several software instructions. Initially, software instructions are held in secondary memory storage devices such as CD-ROM, hard disk, magnetic tape or floppy disk. These instructions are then loaded into the main memory of a computer.

References

https://www.reference.com/technology/function-cpu-533becf0538125e3

http://study.com/academy/lesson/central-processing-unit-cpu-parts-definition-function.html

Differences Between System Software and Application Software

The Software is any program that makes a computer to do something meaningful. Normally, they are step-by-step instructions needed to turn data into information. There are two categories of software: System Software and Application Software.

System software refers to programs written for computers. The programs offer the platform on which application program are run. All programs that interact with the hardware at a basic level are classified as system software. They serve as an interface between the user and the hardware. Examples of system software are compilers, operating system, and utility programs.

The operating system is the most essential type of system software. It is a set of specialized programs that manage the overall computer operations. It acts as an interface between the computer hardware, software, and user. To run other programs, each computer has an operating system. The most common operating system is DOS, Linux, UNIX and Windows.

Applications software is all the programs designed to solve a problem. Rather than just managing a computer, they are used to perform specific tasks. These programs are managed by system software. Some common examples are game programs, railway reservation system and word processing software.

References

https://www.reference.com/technology/difference-between-system-software-application-software-examples-7a1c3c6460586e3b

http://www.differencebetween.com/difference-between-system-software-and-application-software/

How Economic Growth can be Boosted by Gender Equality

Image result for How Economic Growth can be boosted by Gender EqualityGlobally, labor force participation of women is lower than that of men. Furthermore, most women work in the informal sector and are more likely to face significant wage gaps or to be unpaid for their work. A 2013 report, ”Women, Work and the Economy“, highlighted how gender inequality in the workforce can hurt economic growth.

According to the report, closing gender gaps in the labor market can raise GDP in the US by 5%, in the United Arab Emirates by 12%, and in Egypt by 34%. Particularly, the economic gains of gender equality are high in fast aging societies, where improving labor force participation of women could offset the effect of a shrinking workforce.

In addition, according to a report published by the International Finance Corporation (IFC), better employment opportunities for women contribute to increased productivity and profitability in the private sector. Firms that invest in the employment of women find that it benefits them by improving innovation, staff retention, and access to new markets and talent.

Generally, better jobs for women are beneficial to companies, individuals, families, and economies. With financial independence and more income, women increase household spending on children’s education, health, and nutrition.

References

http://www.unwomen.org/en/what-we-do/economic-empowerment/facts-and-figures

https://www.devex.com/news/how-gender-equality-can-boost-economic-growth-82130