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37 Cards in this Set

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bluetooth, COM, FireWire, IrDA, Parallel, SCSI, Serial
types of Ports
Game, Modem, Network, Sound, Tv tuner, USB, Video
types of expansion cards
2 components:
ALU - arithmetic logic unit
CU - control unit

- they work together to perform processing operations
bay CPU - components and what they do
type of memory that can be read from and written to by the processor and other devices. Programs and data are loaded into the ____ from storage devices such as a hard disk and remain in RAM as long as the computer has continuous power.

most RAM is volatile
RAM
amount of time it takes the processor to read data, instructions, and information from memory.
access time
pace of the system clock, measured by the number of ticks per second
clock speed
smallest unit of data a computer can process
bit
eight bits that are grouped together as a unit. It provides enough different combinations of 0s and 1s to represent 256 individual characters.
byte
coding scheme used primarily on mainframe computers and high end servers
EBCDIC - where is it used
most widely used coding scheme to represent data
ACSII
memory - data being held to later carry out instructions

storage - data saved for later use
diff between storage and memory ROM
size of a bus, which determines the number of bits taht a computer can transmit at one time
bus width
memory, hard disk, cds and dvds, tape, floppy disk
types of storage devices
can hold up to 500 double-spaced pages of text, several digital photographs, or a small audio file
floppy disks- how much they can hold
keyboard, mouse, stylus, digital pen, microphone, digital camera, scanner
types of input devices
printers, speakers, data projectors
types of output devices
process of preparing a disk for reading and writing
formatting
small arcs into which tracks on a disk are divided
sectors
narrow recording band that forms a full circle on the surface of a disk
tracks
40 to 250GB
hard drive capacity
ROM- read only
RW- read and write
difference between CD-ROM and CD-RW
access in which the storage device is able to locate a particular data item or file immediately
direct access
type of data access in which the storage device reads or writes data consecutively
sequential access
type of miniature mobile storage medium that is a flash memory card capable of storing between 16MB and 128 MB of data
smart media
special window that provides information, presents available options, or requests a response
dialogue box
instruction on a menu that causes a program to perform a specific action
command
windows XP, DOS, Linux, Mac OS X, Netware, Solaris, Palm OS
types of operating systems
file manager, image viewer, uninstaller, disk scanner, disk defragmenter, diagnostic utility, screen saver
types of utility programs
segment of memory or storage in which items are placed while waiting to be transferred from an input device or to an output device
buffer
lineup of multiple print jobs within a buffer
queue
type of user interface that allows a user to interact with software using menus and text, graphics, and visual images
GUI - Graphical User Interface
NetWare, Windows Server 2003, UNIX, Linux, Solaris, Palm OS
network operating systems
signal that consists of consistent electrical wave

signal that consists of individual electrical pulses, which represent bits grouped together into bytes
analog vs digital signal
server in a client/server network that stores and manages files
file server
electrical channel that transfers electronic bits internally within the cicuitry of a computer, allowing the devices inside the system unit and the devices attached to the system unit to communicate with each other
bus
bluetooth, WAP, Intranets
types of cables used in networking
malicious-logic program that resides in active memory and copies itsself repeatedly
worm