July 17, 2018       Unknown

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ASSALAMUALAIKUM

     

      Hi, nice to meet you

      Today i want to share with you about myself. My name is Syyaiddah Nashrah Binti Mohd Nazri. i am 19 years old and still studying in the field of graphic design at Politeknik Ibrahim Sultan, Pasir Gudang, Johor. i was born at 21.03.1999 in Kuala Terengganu general hospital. My hobby is playing the computer because it gives many benefits for me and useful at era technology now.

     my major strengths that give me unique identities are my punctuality, honesty, creativity and hardworking caliber. also, i can adjust to any environment and always try to discover and learn new things.

      but i also have my own weakness that i am very soft by nature that's why i easily believe on others words. i always try to help others without understanding whether that will be good or bad for me. also, i am very shy person, but once i get to know a person, i don't have any issues in interacting with that person. haha

that's all form me. don't forget to follow my account social media ok. thank you

INSTAGRAM / TWITTER : @nashrahnazri

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   July 17, 2018       Unknown

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 INTRODUCTION TO COMPUTER

 
     A computer is a device that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks.

Computers are used as control systems for a wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer-aided design, and also general purpose devices like personal computers and mobile devices such as smartphones.

Early computers were only conceived as calculating devices. Since ancient times, simple manual devices like the abacus aided people in doing calculations. Early in the Industrial Revolution, some mechanical devices were built to automate long tedious tasks, such as guiding patterns for looms. More sophisticated electrical machines did specialized analog calculations in the early 20th century. The first digital electronic calculating machines were developed during World War II. The speed, power, and versatility of computers have been increasing dramatically.

HISTORY OF COMPUTER

     Generally speaking, computers can be classified into three generations. Each generation lasted for a certain period of time,and each gave us either a new and improved computer or an improvement to the existing computer.

First generation: 1937 – 1946 - In 1937 the first electronic digital computer was built by Dr. John V. Atanasoff and Clifford Berry. It was called the Atanasoff-Berry Computer (ABC). In 1943 an electronic computer name the Colossus was built for the military. Other developments continued until in 1946 the first general– purpose digital computer, the Electronic Numerical Integrator and Computer (ENIAC) was built. It is said that this computer weighed 30 tons, and had 18,000 vacuum tubes which was used for processing. When this computer was turned on for the first time lights dim in sections of Philadelphia. Computers of this generation could only perform single task, and they had no operating system.

Second generation: 1947 – 1962 - This generation of computers used transistors instead of vacuum tubes which were more reliable. In 1951 the first computer for commercial use was introduced to the public; the Universal Automatic Computer (UNIVAC 1). In 1953 the International Business Machine (IBM) 650 and 700 series computers made their mark in the computer world. During this generation of computers over 100 computer programming languages were developed, computers had memory and operating systems. Storage media such as tape and disk were in use also were printers for output.

Third generation: 1963 - present - The invention of integrated circuit brought us the third generation of computers. With this invention computers became smaller, more powerful more reliable and they are able to run many different programs at the same time. In1980 Microsoft Disk Operating System (MS-Dos) was born and in 1981 IBM introduced the personal computer (PC) for home and office use. Three years later Apple gave us the Macintosh computer with its icon driven interface and the 90s gave us Windows operating system.

As a result of the various improvements to the development of the computer we have seen the computer being used in all areas of life. It is a very useful tool that will continue to experience new development as time passes.

COMPONENTS OF COMPUTER

Basic PC Components

Component	Description
Motherboard	The motherboard is the core of the system. It really is the PC; everything else is connected to it, and it controls everything in the system. Microprocessors are covered in detail in Chapter 3, "Microprocessor Types and Specifications."
Processor	The processor is often thought of as the "engine" of the computer. It's also called the CPU (central processing unit).
Memory (RAM)	The system memory is often called RAM (for random access memory). This is the primary memory, which holds all the programs and data the processor is using at a given time. Memory is covered in detail in Chapter 6, "Memory."
Case/chassis	The case is the frame or chassis that houses the motherboard, power supply, disk drives, adapter cards, and any other physical components in the system. The case is covered in detail in Chapter 21, "Power Supply and Chassis/Case."
Power supply	The power supply is what feeds electrical power to every single part in the PC. The power supply is covered in detail in Chapter 21.
Floppy drive	The floppy drive is a simple, inexpensive, low-capacity, removable-media, magnetic storage device.
Hard drive	The hard disk is the primary archival storage memory for the system. Hard disk drives are also covered in detail in Chapter 10, "Hard Disk Storage."
CD-ROM/DVD-ROM	CD-ROM (compact disc read-only) and DVD-ROM (digital versatile disc read-only) drives are relatively high-capacity, removable media, optical drives. These drives are covered in detail in Chapter 13, "Optical Storage."
Keyboard	The keyboard is the primary device on a PC that is used by a human to communicate with and control a system. Keyboards are covered in detail in Chapter 18, "Input Devices."
Mouse	Although many types of pointing devices are on the market today, the first and most popular device for this purpose is the mouse. The mouse and other pointing devices are covered in detail in Chapter 18.
Video card	The video card controls the information you see on the monitor. Video cards are covered in detail in Chapter 15, "Video Hardware."
Monitor	Monitors are covered in detail in Chapter 15.
Sound card	It enables the PC to generate complex sounds. Sound cards and speakers are covered in detail in Chapter 16, "Audio Hardware."
Modem	Most prebuilt PCs ship with a modem (generally an internal modem). Modems and other Internet-connectivity devices and methods are covered in Chapter 19, "Internet Connectivity."

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