
* Computer Storage:A computer memory that refer to components, devices and recording
media that retain data for some interval of time.

* Optical Drive: A storage device that writes data to and reads data from an optical storage medium, such as compact disk.

* Software: Is an application package, which enables you to perform certain tasks, which manipulates any number of variables, hardware or data. Microsoft Word is a software program that enables word processing facilities.

* USB:is a plug-and-play portable storage device that uses flash memory and is lightweight enough to attach to a key chain. A USB drive can be used in place of a floppy disk, Zip drive disk, or CD. When the user plugs the device into the USB port, the computer's operating system recognizes the device as a removable drive and assigns it a drive letter. Moreover, is known as a flash drive or keychain drive.

* Computer: An electronic machine that receives, processes and presents data. A computer can be programmed to perform complicated tasks, like solving complex mathematical equations or controlling a flight simulator.

* Microprocessor: a chip that serves as the central processing unit controlling a computer. A microprocessor is the result of an electronics miniaturisation technique and computer technology which provide programmable intelligence in a small package at relatively low cost.

* Hard Drive: The hard drive stores all the computer's information and retains the information when the computer is turned off.

* Data Bus: (internal/external) The lines on the system bus that CPU uses to send and receive data.

* Computer Program: A combination of computer instructions and data definitions that enable computer hardware to perform computational or control functions.

* Binary: A numbering system with just two numbers. Usually, one and zero. Digital computers reduce everything, ultimately, to strings of ones and zeros.

* Hardware: is a general term that refers to the physical artifacts of a technology. It may also mean the physical components of a computer system, in the form of computer hardware.

* MODEM: A device that converts digital data into analog signals and vice-versa for transmission over a telephone line.
