Electronic device that receives, processes, stores data and then will produce a result. It must have hardware and software working together to perform a task.
Text, numbers, sounds, and graphics entered into a computer.
The physical equipment that can be seen and touched.
The largest network used as a communication tool.
local area network (LAN)
A series of connected personal computers, workstations, and peripheral devices such as printers and scanners, within a confined space such as office or classroom.
Large, powerful computers that are used for centralized storage, processing and management of large amounts of data.
Also, called a personal computer (PC), used at homes or offices by one person that can fit on top or under a desk
This computer is designed to serve several users and processes significant amount of data . It is not as large as a supercomputer but larger than a microcomputer (personal computer)
Connects one computer to other computer and peripheral devices.
A small, portable computer that is similiar to a microcomputers.
Largest and fastest computers, capable of storing and processing tremendous volumes of data.
Wide area network (WANs)
Computer networks that cover a large geographical area. Most WANs are made up of several connected LANs.
Media such as a telephone wire, fiber-optic cable, microwave signals, that carry/transmission of the communication message.
Users who enter the data on the computers and use the output.
Standard format for transferring data between two devices. TCP/IP is the international for transmitting data.
The computer that receives the data transmission.
The computer that sends the data transmission.
Set of instructions that tells the computer what to do.
Hardware, software, and data working together.
Transmission of text, numeric, voice, or video data from one machine to another.
An integrated circuit silcon chip that contains the processing unit for a computer or computerized appliance.
A piece of hardware that helps the computer enter data. Keyboard and mouse are this type of computer device.
A hardware device that processes datat into useful information. It is called CPU or Central Processing Unit.
A hardware device that stores data. Examples are jump drives, CD, and harddrive.
a binary digit -either zero or one (0 or 1)
A unit of measurement of memory. The amount of space used to save one character of one value. It is equal to 8 bits.
1 billion bytes
1 million bytes
RAM (Random Access Memory)
Main memory that stores instructions and data while the computer is on. This memory will be lost when the power is off. This memory can be changed.
ROM (Read Only Memory)
Main memory that is not lost when the power is off. It hold instructions for the computer that are necessary for it to work.
Storage device that is sealed inside the computer. Data can be founded faster on the hard disk/drive than any other storage device.
main circuit board of a computer
Lets a computer play and record high quality sound.
Visual information seen on your monitor.
You cannot touch it; you can see it.
The paper copy that is produced by the printer. The paper copy can be touched.