Computer+Terms

**1 Hard drive ** : a non-volatile storage device that stores digitally encoded data on rapidly rotating platters with magnetic surfaces.

**2 RAM** computer memory that can be read from and written to in arbitrary sequence in a very high speed.

**3 Hardware** is an online magazine.


 * 4 Software** Computer software, or just software is a general term used to describe the role that computer program.


 * 5 Input device** the modality of input (e.g. mechanical motion, audio, visual, etc.)


 * 6 Output device** An **output device** is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer ) to the outside world.


 * 7 Mouse** A **mouse** (plural **mice**) is a small mammal belonging to the order of rodents . The best known mouse species is the common house mouse (//Mus musculus//).

**8 Keyboard** Gio- Key-Board or GioKeyBoard is a multimedia literacy "Initial-Sound-Keyboard.

**9 Monitor** a device that displays images or symbols generated by computers.

**10 Printer** a computer peripheral that reproduces text and/or pictures on paper or other kind of printable surface.

**11 CPU** The **Central Processing Unit** (**CPU**) or **processor** is the portion of a computer system that carries out the instructions of a computer program, and is the primary element carrying out the computer's functions.

**12 Bit** A **bit** is the basic unit of information in computing and telecommunications. The term is derived as a contraction of //binary digit//. The binary digits used for representing bits are most commonly the Arabic numerical digits //0// and //1//, but other presentations are also common, such as the logical representation in which the values //false// and //true// are used, respectively.

**13 Byte** The **byte** (pronounced /ˈbaɪt / ) is a unit of digital information in computing and telecommunications. It is an ordered collection of bits, in which each bit denotes the binary value of 1 or 0. Historically, a byte was the number of bits used to encode a character of text in a computer [1][2] and it was for this reason the basic addressable element in many computer architectures


 * 14 Megabyte** The **megabyte** is an SI -multiple (see prefix mega- ) of the unit byte for digital information storage or transmission and is equal to 106 ( 1 000000 ) bytes. However, due to historical usage in computer-related fields it is still often used to represent 220 (1024×1024 or 1 048576  ) bytes. In rare cases, it is used to mean 1000×1024 ( 1 024000  ) bytes. It is commonly abbreviated as Mbyte or **MB** (compare **Mb**, for the megabit ).

**15 Kilobyte** The **kilobyte** (derived from the SI prefix " kilo- ", meaning 1,000) is a unit of digital information storage equal to either 1,000 bytes (103) or 1,024 bytes (210), depending on context.


 * 16 Gigabyte** The **gigabyte** is an SI -multiple of the unit byte for digital information storage . The prefix //giga// means 109, therefore 1 //gigabyte// is 1 000000000bytes . The unit symbol for the gigabyte is **GB** or **Gbyte**, but not //Gb// (lower case //b//) which is used for the gigabit.

**17 Terabyte** **terabyte** is a SI -multiple (see prefix //tera// ) of the unit byte for digital information storage and is equal to 1012 ( 1 000000000000 ) bytes or 1000 gigabytes. The unit symbol for the terabyte is **TB**.

**18 Operating system** An **operating system** (**OS**) is an interface between hardware and user which is responsible for the management and coordination of activities and the sharing of the resources of the computer that acts as a host for computing applications run on the machine.

**19 USB** USB can connect computer peripherals such as mice, keyboards , digital cameras , printers , personal media players , flash drives , and external hard drives.

**20 Firewire** The **IEEE 1394 interface** is a serial bus interface standard for high-speed communications and isochronous real-time data transfer, frequently used by personal computers, as well as in digital audio , digital video , automotive , and aeronautics applications.


 * 21 ROM** Read-only memory, a class of storage media used in computers and other electronic devices. This tells the computer how to load the operating system.

**22 Data Bus** In computer architecture, a **bus** is a subsystem that transfers data between computer components inside a computer or between computers.

**23 Modem** A **modem** (//**mo**dulator-**dem**odulator//) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information.


 * 24 GUI** The term derives from the verb, //"gupda"// (굽다) in Korean, which literally means "grill".

**25 Removable drive** A **disk enclosure** is essentially a specialized chassis designed to hold and power disk drives while providing a mechanism to allow them to communicate to one or more separate computers.

**26 MP3 MPEG-1 Audio Layer 3 **, more commonly referred to as **MP3**, is a patented digital audio encoding format using a form of lossy data compression.

27 Internet The **Internet** is a global system of interconnected computer networks that use the standardized Internet Protocol Suite (TCP/IP) to serve billions of users worldwide.