Fist test Flashcards
Give me any 4 reasons to become computer literate?
Education Online banking Research Cool at the paartay Avoiding hackers and viruses Using internet wisely Protect your privacy
What does I.T. stand for?
Information technology
Where are all the it jobs going?
Outsourcing and overseas to India, China, Russia and Bangladesh
What is information?
Processed data in a meaningful format
What is data?
The raw material that produces information
The computer uses what kind of language?
Binary number system or binary language
0 and 1
What are the 4 functions done by computers?
Gathers data
Processes data and information
Stores data and information
Outputs data and information
What are the 4 parts of a computer system?
Input- keyboard, mouse
Output- monitor
Processor- Intel, motoralla, amd
Storage- hard disk, flash drive, cd-rom
What are the 2 types of keyboards?
Qwerty
DVORAK
How are 0,1 being represented?
electrical switches
0- off
1- on
What is a bit?
Short for binary digit (0,1)
What is byte/
8 bits=1 byte=1 character
What are the types of printers?
Laser
Inkjet
How do we measure resolution of a monitor?
# of pixels # of colors distance between two adjacent pixels
What is a pixel?
Picture element
How do we measure resolution of a printer?
DPI (dots per inch)
PPM (pages per min)
What are the 2 types of storage?
Permanent- hard drive, flash drive, cd-rom, dvd-rom, ROM (read only memory)
Temporary-RAM (random access memory)
What are the parts of mother board?
CPU (central processing unit) brain
RAM (random access memory)
ROM (read only memory)
Ports (USB universal serial bus, HDMI high definition multimedia interface
What are the types of computers?
Labtop
Desktop
Super computer
Tablet
What is the most popular port?
USB (universal serial bus)
What are the types of monitors?
CRT (catheter ray tube)
LED (light emitting diode)
LCD (liquid crystal display)
Describe 1 machine cycle.
CPU gets data/instructions from RAM
Its decodes the data/instructions
It executes the instructions
Puts the results back into RAM
