45 terms

Digital Information Technology (FLVS) Module 1

STUDY
PLAY

Terms in this set (...)

Central processing unit (CPU)
Main chip in computer also known as microprocessor
Memory
Stored info for the computer to do its intended function
Input devices
A peripheral that provides info to the computer
Output devices
A peripheral that provides info to user
Computer architecture
The selection and interconnection of hardware components to create computers that meet functional, performance, and cost goals.
Integrated circuts
Chips made of transistors and other components that are connected to perform a given function.
Electrical current
Messages that comminucate commands to computer
Gordon Moore
Cofounder of Intel, developed Moore's law which states over the history of computing hardware, the number of transistors or integrated circuits doubles approximately every 2 years.
Operating system (OS)
Software to run the computer, translates binary code to what we need
Command line based operating systems
Screen with lines waiting for commands (old) ex: MS-DOS and UNIX
Graphical User Interface (GUI)
Allows users to see what they're doing with icons, windows and menus to interact with computer
Read-only memory (ROM)
Provides info to devices but isn't written to by user (start up files and firm ware) like a CD for a video game
Random access memory
Allows the user to both read and write to this memory to improve the computer's functionality. Temporarily stores data about programs used, allows faster access, then erased when shut down.
Peripherals
Devices that connect to a computer to provide input or output funcitons
Storage
Stores data processed by computer (external hard drives, flash drives, hard drive)
Bit
Smallest unit of data used by a computer
File structure
An organized method of naming and storing files
Desktop
Main display screen
DOC
Editable document by Microsoft used in word
XLS
Editable spreadsheet by microsoft used in excel
PDF
Portable Document Format, proprietary doc file type by Adobe Systems compatible with most computer systems. Acrobat is most common for viewing
GIF
Graphics Interchange Format, uses compression so these files can be viewed, especially for slow connections. Web browsers can view these files
JPG
Created by Joint Photograpic Experts Group (JPEG) this lossy type compresses image files for use on the internet. Web browsers can view these files
PS
A graphics programming file type used for desktop publishing and printing programs directly
MP3
Common audio file format using lossy compression to reduce the size of sound or music files so they can be used on devices like MP3 players and played in media programs
OGG
Open source audio file type that can be played by compatible software audio players and hardware devices
AUI
Audio/video interlaced file format for video (Windows media player)
MPEG
Made by moving picture experts group, well-suited for internet usage
Disk cleanup
Windows software that analyzes and removes unnecessary files
Drive optimizer
Windows software that organizes files to free up space on the hard drive
Anti-virus
Protects against computer harm and interference of normal operations
Anti-spyware
Protects against software that collects your data
Firewall
Protects from threats over the internet
Viruses
Interfer with operations spread to 1 device to another
Trojan horses
Breach security
Worms
Malware that replicates to spread to other devices
Diagnosing
Finding the issue
Troubleshooting
Fixing the problem
client/server network
Has a central powerful computer server that's a hub for the lesser computers, clients. Clients can access content and run apps on server not on another client device
Peer to peer network
Computers connect to other computers to share info without a main server. They all run their own software, store data, and can be accessed by other computers on the network
Cloud servers
File sharing and data back up
Instant message
Instant communication
Teleconference
Group talk online
Telepresence
Visual conference
IOS
An operating system used for mobile devices