Info Tech Quiz 1
Terms
undefined, object
copy deck
- input devices for computers
- keyboard, mouse, pen, microphone, webcam, fingerprint reader, camera, and scanner.
- Hertz
- (Mz) used to measure computer speed; unit of frequency-one per second
- microsoft powerpoint
- .ppt
- 1 byte
- 1 letter
- software
- set of programs that perform some task for the user.
- 3 main types of computers
- desktop, laptop/tablet, and server
- CPU
- the brain of the computer; does all of the calculations.
- microsoft word
- .doc
- Mega
- (M) 10^6= 1,000,000
- Two types of storage device:
- RAM(random access memory) and harddrive
- image files
- gif, bmp, jpg, png
- Byte
- (B) used to measure storage; used to measure RAM and hard drive storage in the computer
- Giga
- (G) 10^9= 1,000,000,000
- audio files
- mp3, wma, wav
- programmable
- something that can be made to do some specific task.
- input/output device
- input- how we interact with the machines. Output- how the machine gives us feedback.
- hardware
- physical parts internal to the computer.
- 1 GB
- pickup truck full of pages of text
- 4 MB
- 4 minute song
- output devices for the computers
- speakers, printer, and monitor.
- Extensions
- tell us and the computer what that file is and what program will open it; every file has one of these
- kilo
- (k) 10^3= 1,000
- microsoft publisher
- .pub
- pdf files
- usually how text is converted to digital format
- computer
- a programmable machine that stores, processes, and retrieves date.
- 4 parts of hardware
- CPU(central processing unit), input/output devices, storage devices, motherboard.
- Computer
- every one of these is just made up of files; there could be more than 100,000 files on this
- microsoft excel
- .xls
- video files
- wmv(windows media video), avi, mpeg
- zip files
- files that can contain other files; used to compress files together
- server
- a computer that will perform services for connected computers. Examples= web server, email server, and file server.
- the motherboard
- how everything communicates with eachother