Central processing unit (CPU)

an electronic circuit that can execute computer programs.

System clock

Is an electronic pulse that controls the speed of the CPU.

Plotters

Are printers that use pens to draw lines to create maps,charts,and blue prints.

Printers

Are used to create a hard copy of a document or image.

Scanners

Changes images into digital data that a computer can understand.

Read Only Memory (ROM)

Is memory placed or the motherboard by the mainufacturer and contains instructions.

Random Access Memory (RAM)

A short term memory where data is processed while a program is running.

memory

Addressable locations within the machine that the computer can access directly.

Output device

When the computers give or show the results of its processed.

Input device

lets a user to put data and commands to the computer to be processed.

Mouse

A pointing device that controls the pointer on the screen.

hard disk drive

It reads and write data on a hard disk.

DVD

DVD stands for digital Video Disc which is a disk teachnology.

Byte

A unit of storage to hold memory.

Controller

A device that controls the transfer of data from the computer to a peripheral device and vice versa.

The central processing unit (CPU)

The central processing unit is a tiny silicon chip that acts as the brains of a computer system.

Motherboard

Is a circuit board inside the microcomputers plastic case.

Bit

A basic unit of information in an electronic computer.

Expansion slots

They are openings on the motherboard where a circult board or memory chip can be added.

Expansion ports

Are specialized plugs that connect peripheral devices to the computers motherboard.

American Standard Code for Information Interchange (ASCII)

codes for information to be traded in computers made by different companies

The different between hardware and software

hardware you can touch for an example mouse,video cord,keyboard,usb cord,sound card,flash drive,
software is data on the computer that you cant touch for an example aim,AOL,yahoo,you tube,Microsoft office,Microsoft office word,and Microsoft office power point

Computer system

A Computer system is Data processing, transfer and storage system utilized for a wide variety of control purposes, for scientific analysis and as a library computer. All components of the computer system are connected with each other and with the main computer core.

Sender

The person or organization responsible for transmitting the email, usually identified by the email address in the ?From? line.

Data Communications

The transmission and reception of data between locations. Data communications require a combination of hardware (terminals, modems, multiplexers, and other hardware) and software.

Microcomputer

A small. low cost computer originally designed for individual users. Recently, microcomputers have become powerful tools for many businesses that, when networked together, have replace minicomputers and in some cases mainframes and information tools.

Wide area network

A network that interconnects geographically-distributed computers

Local area network

a local computer network for communication between computers; especially a network connecting computers and word processors and other electronic devices.

Notebook computer

A lightweight computer slightly smaller than a laptop with similar features such as a pop-up display monitor, battery pack, and disk drives.

Computer

A programmable device that performs mathematical calculations and logical operations, especially one that can process, store and retrieve large data and information.

Mainframe computers

Large, powerful computers that are used for certralized storage, processing, and management of very large amounts of data.

Supercomputers

Largest and fastest computers, capable of storing and processing tremendous volumes of data.

Hardware

The tangible, physical equipment that can be seen and touched.

People

Users of the computers who enter the data and use the output.

Receiver

A Computer that receives a data transmission.

Microprocessors

An integrated circuit silicon chip that contains the processing unit for a computer or a computerized appliance.