INTRODUCTION TO INFORMATION TECHNOLOGY
EXAM 202; ACTUAL EXAM SET QUESTIONS AND
VERIFIED ANSWERS (CORRECT SOLUTIONS); GET IT
100% ACCURATE!!
computer - ANS-a machine that changes information from one form into another by preforming four
basic actions: input, processing, output, storage
analog computers - ANS-measures data on a scale with many values
digital computers - ANS-work with data that has a fixed value - use data in digital, or number form
input - ANS-raw info that is entered into the computer; there are four types of input: data, software
instructions, user commands, and responses
bit - ANS-binary digit; building blocks of language
byte - ANS-group of 8 bits
output - ANS-displays the result of the input and processing; four types of output: text, graphics, video,
audio
storage - ANS-when the computer saves the data/info you are working with
CPU - ANS-central processing system; processes data; takes input and changes it to a form we can
understand
RAM - ANS-random access memory; primary storage; temporary (turns off when computer is shut off);
holds the program instructions and data that is being used by the CPU; all programs must be copied to
RAM before the computer can use them
Secondary Storage Devices - ANS-Hard drives
Flash/Jump/Thumb/Pen drives
CDs/DVDs
, Cloud Storage
USB - ANS-universal serial bus
peripherals - ANS-hardware that is separate but can connect to the computer
software - ANS-includes all the programs that tell the computer what to do and how to do it; there are
two types: system software and application software
system software (type of software) - ANS-includes programs that help the computer work properly and
run smoothly; OS and system utilities
application software (type of software) - ANS-programs designed to help you do tasks; performs a
specific job or task
OS (system software) - ANS-stored on the hard drive; lets the hardware communicate with each other
and keeps them running efficiently; mostly used are Macintosh OS and Microsoft Word but others
include MSDOS, Unix, and Linux
The OS:
1. works with peripherals: moving the data and commands between the cpu and monitor
2. managing the data
3. using memory: storing data and programs in RAM or on the hard drive
4. coordinating data processing: multitasking
5. providing user interface
6. manages input and output devices
utility software - ANS-programs that help the computer work properly; usually do maintenance and
repair jobs; repair damaged data files/compress files to take up less space
types of application software - ANS-productivity - help people be more productive
graphics - used for paintings/pictures
communication - connect to internet and send emails
home/education/entertainment - other
motherboard - ANS-a printed circuit board containing the principal components of a computer or other
device, with connectors into which other circuit boards can be slotted.
ROM - ANS-read-only memory; contains the instructions to start the computer; permanent storage
source code - ANS-instructions written by programmers that is written in programming language
procedural programming - ANS-uses step-by-step instructions to tell a computer what to do; C++
object-oriented programming - ANS-provides rules for creating and managing objects which are items
that include both data and how to process the data; Java, VBScript & C++
compliers - ANS-translate the source code into binary form
EXAM 202; ACTUAL EXAM SET QUESTIONS AND
VERIFIED ANSWERS (CORRECT SOLUTIONS); GET IT
100% ACCURATE!!
computer - ANS-a machine that changes information from one form into another by preforming four
basic actions: input, processing, output, storage
analog computers - ANS-measures data on a scale with many values
digital computers - ANS-work with data that has a fixed value - use data in digital, or number form
input - ANS-raw info that is entered into the computer; there are four types of input: data, software
instructions, user commands, and responses
bit - ANS-binary digit; building blocks of language
byte - ANS-group of 8 bits
output - ANS-displays the result of the input and processing; four types of output: text, graphics, video,
audio
storage - ANS-when the computer saves the data/info you are working with
CPU - ANS-central processing system; processes data; takes input and changes it to a form we can
understand
RAM - ANS-random access memory; primary storage; temporary (turns off when computer is shut off);
holds the program instructions and data that is being used by the CPU; all programs must be copied to
RAM before the computer can use them
Secondary Storage Devices - ANS-Hard drives
Flash/Jump/Thumb/Pen drives
CDs/DVDs
, Cloud Storage
USB - ANS-universal serial bus
peripherals - ANS-hardware that is separate but can connect to the computer
software - ANS-includes all the programs that tell the computer what to do and how to do it; there are
two types: system software and application software
system software (type of software) - ANS-includes programs that help the computer work properly and
run smoothly; OS and system utilities
application software (type of software) - ANS-programs designed to help you do tasks; performs a
specific job or task
OS (system software) - ANS-stored on the hard drive; lets the hardware communicate with each other
and keeps them running efficiently; mostly used are Macintosh OS and Microsoft Word but others
include MSDOS, Unix, and Linux
The OS:
1. works with peripherals: moving the data and commands between the cpu and monitor
2. managing the data
3. using memory: storing data and programs in RAM or on the hard drive
4. coordinating data processing: multitasking
5. providing user interface
6. manages input and output devices
utility software - ANS-programs that help the computer work properly; usually do maintenance and
repair jobs; repair damaged data files/compress files to take up less space
types of application software - ANS-productivity - help people be more productive
graphics - used for paintings/pictures
communication - connect to internet and send emails
home/education/entertainment - other
motherboard - ANS-a printed circuit board containing the principal components of a computer or other
device, with connectors into which other circuit boards can be slotted.
ROM - ANS-read-only memory; contains the instructions to start the computer; permanent storage
source code - ANS-instructions written by programmers that is written in programming language
procedural programming - ANS-uses step-by-step instructions to tell a computer what to do; C++
object-oriented programming - ANS-provides rules for creating and managing objects which are items
that include both data and how to process the data; Java, VBScript & C++
compliers - ANS-translate the source code into binary form
