Term
|
Definition
| computer case,monitor,keyboard,mouse |
|
|
Term
|
Definition
| play music,movies and view pictures |
|
|
Term
|
Definition
| portable computer with mouse,keyboard,case and monitor all in one unit |
|
|
Term
|
Definition
| very small computer,sometimes called a personal data assistant(PDA) |
|
|
Term
|
Definition
| A microprocessor that does one thing such as regulate a heart pacemaker |
|
|
Term
|
Definition
| Powerful computer that acts as a central for numerous computers that are connected to it |
|
|
Term
|
Definition
| Uninterruptible power supply provides temporary power to computer if electricity fails,enables you to shut down your computer without losing data |
|
|
Term
|
Definition
| universal serial bus is a port to plug in a usb device |
|
|
Term
|
Definition
| used to plug in a firewire device such as digital video camera |
|
|
Term
| Network port( Ethernet port) |
|
Definition
| used to plug a cable into a network or to a high speed internet modem |
|
|
Term
|
Definition
| Instructs the computer hardware to perform tasks |
|
|
Term
|
Definition
| programs you interact with to perform specific tasks example Google to search, microsoft word to create documents |
|
|
Term
|
Definition
| programs you interact with to perform specific tasks example Google to search, microsoft word to create documents |
|
|
Term
|
Definition
| programs that operate behind the scenes to ensurse your computer functions properly, called the operating system example Windows xp, Vista or Mac OS X |
|
|
Term
|
Definition
| controls startup, application and hardware management, and shutdown. Everything that happens on your computer is initiated, processed, and approved by the operating system |
|
|
Term
|
Definition
| when you turn your computer the opating system assumes control and prepares the computer for use |
|
|
Term
|
Definition
| electronic collection of data and intructions |
|
|
Term
|
Definition
| used to communicate with your computers hardware, example the operating system launches a divice driver to receive and display the content of a disc |
|
|
Term
|
Definition
| Operating system interacts with application software, example when youvstart a program the operating system finds the files and opens |
|
|
Term
|
Definition
| when you press a key on your keyboard, move your mouse or talk into your microphone |
|
|
Term
|
Definition
| The operating system responds to your request.Example instructing a program to print a document, the operating system sends the document to the printer |
|
|
Term
| CPU Central processing unit |
|
Definition
| The Central Processing Unit (CPU) is the computer's most important component because it handles, or directs, most of the tasks that occur inside the computer. The CPU is also called the microprocessor or processor. |
|
|
Term
|
Definition
| Coordinates the flow of data through out the computer. referred to as the brain of the computer |
|
|
Term
|
Definition
| Intel makes the Core 2 duo,pentium and celeron, AMD makes Sempron and Anthelon,Apple MAC usuesCore 2 Duo chips |
|
|
Term
|
Definition
| CPU speed is meeasured in cycles per second(hertz or Hz) A cycle represents a single task performed by the CPU;such as adding two numhers.CPU speeds are measusred in gigahertz (GHz)or billions of cycles per second |
|
|
Term
|
Definition
| Storage area where the CPU keeps frequently used data,improves the computers performance |
|
|
Term
|
Definition
| (FBS) the pathway on which data travels, determines how fast data travels between the CPU and memory |
|
|
Term
|
Definition
| Memory is like a carpenter's workshop. The raw material are stored in another room (the hard drive), and the carpenter brings them into the workshop (memory) when they are needed. When the carpenter has completed the work, the finished piece is moved from the workshop back to storage. |
|
|
Term
|
Definition
| the more memor you have the more programs and documents you can have open. |
|
|
Term
| RAM( random access memory) |
|
Definition
| short term memory, erased when you turm off your computer |
|
|
Term
|
Definition
| Read only memory, stores data permantly |
|
|
Term
|
Definition
| used by RAM and ROM to store data |
|
|
Term
|
Definition
| A circiut board that memory chips are attached to |
|
|
Term
|
Definition
| holds nine memory chips on one side of a circiut board |
|
|
Term
|
Definition
| holds 9 chips on each side for a total 18 |
|
|
Term
| measure memory: Bits and bytes |
|
Definition
| a bit is smaller than a byte, Eight bits make a byte |
|
|
Term
| measure memory( kilobytes) |
|
Definition
| a bit represents a single character of data |
|
|
Term
|
Definition
| represents about 1,000 bytes( about a page of text) |
|
|
Term
|
Definition
| 1,000 kilobytes, Equivelent to a thick book |
|
|
Term
|
Definition
| represents about 1,ooo megabytes the size of a small library |
|
|
Term
|
Definition
| data is stored on a permanently on a hard drive or removable disk |
|
|
Term
|
Definition
| computers main peranent storage area |
|
|
Term
|
Definition
| an additional haraddrive to increase the storage space in your system |
|
|
Term
|
Definition
| a device in which you insert a tape disk, camn store thousands of mgabytes, use to make back ups of files |
|
|
Term
|
Definition
| discs or cards that you can insert into and remove from special ports. examples ars discs,flash drives, memory sticks |
|
|
Term
|
Definition
| a device that supports many different types of memory cards |
|
|
Term
|
Definition
| windows work area for programs and documents |
|
|
Term
|
Definition
| item on desktop that represents a program or Windows feature on you desktop |
|
|
Term
|
Definition
| programs that you have opened appear in the taskbar. You use this are to switch between programs if you have more than one running at a time. |
|
|
Term
|
Definition
| This area display small icons that notify you about things that are happening on your computer. For example, notifications appear if your printer runs out of paper or if an update to Windows is available over the Internet. |
|
|
