Computer

What is a computer ?

A computer is an electronic machine which can accept data in a certain form, process the data, and give the results of the processing in a specified format as information.

First, data is fed into the computer’s memory. Then, when the program is run, the computer performs a set of instructions and processes the data. Finally, we can see the results (the output) on the screen or printed form (see Fig. 1 below).

A computer system consists of two parts: hardware and software. Hardware is any electronic or mechanical part you can see or touch. Software is a set of instructions, called a program, which tells the computer what to do. There are three basic hardware sections: the central processing unit (CPU), main memory and peripherals.

Perhaps the most influential component is the central processing unit. Its function is to execute program instructions and coordinate the activities of all the other units. In a way, it is the ‘brain’ of the computer. The main memory (a collection of RAM chips) holds the instuctions and data which are being processed by the CPU. Peripherals are the physical units attached to the computer. They include storage devices and input/output devices.

Storage devices (hard drives, DVD drives or flash drives) provide a permanent storage of both data and programs. Disk drives are used to read and write data on disks. Input devices enable data to go into the computer’s memory. The most common input devices are the mouse and the keyboard. Output devices enable us to extract the finished product from the system. For example, the computer shows the output on the monitor or prints the results on paper by means of a printer.

On the rear panel of the computer there are several parts into which we can plug a wide range of peripherals – a modem, a digital camera, a scanner, etc. They allow communication between the computer and the devices. Modern desktop PCs have USB ports and memory card readers on the front panel.

Apa itu Komputer ?

Komputer adalah mesin elektronik yang dapat menerima data dalam bentuk tertentu, mengolah data, dan memberikan hasil pengolahan dalam format tertentu sebagai informasi.

Pertama, data dimasukkan ke dalam memori komputer. Kemudian, saat program dijalankan, komputer melakukan serangkaian instruksi dan memproses data. Akhirnya, kita bisa melihat hasil (output) di layar atau bentuk cetakan (lihat Gambar 1 di bawah).

Sistem komputer terdiri dari dua bagian: perangkat keras dan perangkat lunak. Perangkat keras adalah komponen elektronik atau mekanis yang dapat Anda lihat atau sentuh. Perangkat lunak adalah sekumpulan instruksi, yang disebut program, yang memberi tahu komputer apa yang harus dilakukan. Ada tiga bagian perangkat keras dasar: unit pemrosesan pusat (CPU), memori utama, dan periferal.

Mungkin komponen yang paling berpengaruh adalah unit pengolah pusat. Fungsinya untuk menjalankan instruksi program dan mengkoordinasikan kegiatan semua unit lainnya. Di satu sisi, itu adalah 'otak' dari komputer. Memori utama (kumpulan chip RAM) menyimpan instruksi dan data yang sedang diproses oleh CPU. Periferal adalah unit fisik yang terpasang ke komputer. Mereka termasuk perangkat penyimpanan dan perangkat input / output.

Perangkat penyimpanan (hard drive, drive DVD atau flash drive) menyediakan penyimpanan permanen untuk data dan program. Disk drive digunakan untuk membaca dan menulis data pada disk. Perangkat input memungkinkan data masuk ke memori komputer. Perangkat input yang paling umum adalah mouse dan keyboard. Perangkat keluaran memungkinkan kita untuk mengekstrak produk jadi dari sistem. Misalnya, komputer menampilkan output di monitor atau mencetak hasilnya di atas kertas dengan menggunakan printer.

Pada panel belakang komputer terdapat beberapa bagian di mana kita dapat memasang berbagai macam periferal - modem, kamera digital, pemindai, dll. Mereka memungkinkan komunikasi antara komputer dan perangkat. PC desktop modern memiliki port USB dan pembaca kartu memori di panel depan.

Pengenalan Diri Dalam Bahasa Inggris

 

Introduction (Pengenalan Diri)

Hello Good morning everyone, thank you for the opportunity given to me.  I'm here to introduce myself.   

My name is Killua Zoldyck, and you can call me Killua. I am from Kukuro, tribe Padokea and i live at Mount Kukuro. I was born in Kukuro, June 25th 2002, and I'm 8 years old. As for my family, my father is a assassin and my mother is a assassin. About the hobby, I really like hunter and adventure. Currently I am studying at the Kukuro Assassin University. Besides that I also manage a assassin about hunter and kill.

That is all about my self-introduction. Nice to meet you and thank you for your attention. Bye – bye.

The Digital Age

 

THE DIGITAL AGE

We are now living in what some people call the digital age, meaning that computers have become an essential part of our lives. Young people who have grown up with PCs and mobile phones are often called the digital generation. Computers help students to perform mathematical operations and improve their maths skills. They are used to access the internet, to do basic research and to

communicate with other students around the world. Teachers use projectors and interactive whiteboards to give presentations and teach sciences, history or language courses. PCs are also used for administrative purposes – schools use word processors to write letters, and databases to keep records of students and teachers. A school website allows teachers to publish exercises for students to complete online.  

Students can also enrol for courses via the website and parents can download official reports. Mobiles let you make voice calls, send texts, email people and download logos, ringtones or games. With a built-in camera you can send pictures and make video calls in face-to-face mode. New smarthphones combine a telephone with web access, video, a games console, an MP3 player, a personal digital assistant (PDA) and a GPS navigation system, all in one.

In banks, computers store information about the money hed by each customer and enable staff to access large databases and to carry out financial transactions at high speed. They also control the cashpoints, or ATMs (automatic teller machines), which dispense money to customers by the use of a PIN-protected card. People use a Chip and PIN

card to pay for goods and services. Instead of using a signature to verify payments, customers are asked to enter a four-digit personal identification number (PIN), the same number used at cashpoints; this system makes transactions more secure. With online banking, clients can easily pay bills and transfer money from the comfort of their homes.

Airline pilots use computers to help them control the plane. For example, monitors display data about fuel consumption and weather conditions. In airport control towers, computers are used to manage radar system and regulate air traffic. On the ground, airlines are connected to travel agencies by computer. Travel agents use computers to find out about the availability of flights, prices, times, stopovers and many other details.