What Is Computer?
A Computer Is a digital electronic machine that can be programmed to carry out sequences of arithmetic or logical operations automatically. Modern computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks.
What Is The Purpose Of A computer?
A general-purpose computer is one that, given the appropriate application and required time, should be able to perform most common computing tasks.
What Are Types Of Computers?
When most people hear the word computer, they think of a personal computer such as a desktop or laptop. However, computers come in many shapes and sizes, and they perform many different functions in our daily lives. When you withdraw cash from an ATM, scan groceries at the store, or use a calculator, you’re using a type of computer.
Desktop computers:
Many people use desktop computers at work, home, and school. Desktop computers are designed to be placed on a desk, and they’re typically made up of a few different parts, including the computer case, monitor, keyboard, and mouse.
Laptop computers:
The second type of computer you may be familiar with is a laptop computer, commonly called a laptop. Laptops are battery-powered computers that are more portable than desktops, allowing you to use them almost anywhere.
Tablet computers:
Tablet computers or tablets are handheld computers that are even more portable than laptops. Instead of a keyboard and mouse, tablets use a touch-sensitive screen for typing and navigation. The iPad is an example of a tablet.
What Can Computer Do?
The most powerful computers can perform extremely complex tasks, such as simulating nuclear weapon experiments and predicting the development of climate change. The development of quantum computers, machines that can handle a large number of calculations through quantum parallelism (derived from superposition), would be able to do even more-complex tasks.
What Are The Features Of Computer?
- Speed. A computer works with much higher speed and accuracy compared to humans while performing mathematical calculations.
- Accuracy. Computers perform calculations with 100% accuracy.
- Diligence. A computer can perform millions of tasks or calculations with the same consistency and accuracy.
- Versatility.
- Reliability.
- Memory.
What Are The Uses Of Computer?
It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web. You can also use it to edit or create spreadsheets, presentations, and even videos.
Where Are Computers Used?
They are used in homes, business, educational institutions, research organizations, medical field, government offices, entertainment, etc.
- Home.
- Medical Field.
- Entertainment.
- Industry.
- Education.
- Government.
- Banking.
- Business.
What Is The Brain Of Computer?
Central Processing Unit (CPU)
The CPU is the brain of a computer, containing all the circuitry needed to process input, store data, and output results. The CPU is constantly following instructions of computer programs that tell it which data to process and how to process it.
What Are The Parts Of CPU?
The central processing unit (CPU) consists of six main components:
- control unit (CU)
- arithmetic logic unit (ALU)
- registers.
- cache.
- buses.
- clock.
What Are The Types Of CPU?
Types of CPU:
- Single-core CPU. It is the oldest type of CPU which is available and employed in most of the personal and official computers.
- Dual-core CPU.
- Quad-core CPU.
- Hexa Core processors.
- Octa-core processors.
- Deca-core processor.
What Is The Speed Of Computer?
The clock speed of computers is usually measured in megahertz (MHz) or gigahertz (GHz). One megahertz equals one million ticks per second, and one gigahertz equals one billion ticks per second.
Benefits Of A Computer:
Computers benefit the business and personal world by being able to do the following more efficiently: buying and selling products, communicating throughout the world, enhancing our knowledge, job influences, entertainment, research, and paying bills.
Computer Prices In Ghana:
The price of the all-in-one desktops cmputers varies depending on the specifications of the computers and the brands that manufactured them. It is an open secret that Macbooks are more expensive than other computers due to the prestige associated with Apple computers.
SOME BRANDS AND THEIR PRICES:
| BRANDS | PRICES |
| HP | GH¢4,200.00-6,800.00 |
| Dell | GH¢3,600.00-7,200.00 |
| Apple iMac | GH¢ 9,867.00-12,000.00 |
Laptop Computers Prices In Ghana:
Hp Notebook 15-bs152nia
Price: GH₵ 1 898 – GH₵ 1 949
Hp 15-DA0596SA
Price: GH₵ 2 499 – GH₵ 3 000
Hp 250 G6
Price: GH₵ 1 415 – GH₵ 1 600
DELL LATITUDE 7480
Price: GH₵ 8 000 – GH₵ 9 000
Asus VivoBook Max X540UA
Price: GH₵ 3 045 – GH₵ 3 500