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INSY 2303 EXAM 1 STUDY GUIDE
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INSY 2303 EXAM 1 STUDY GUIDE
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INSY 2303 EXAM 1 STUDY GUIDEASCII (American Standard Code for Information Interchange) - Answers- A code that
represents characters as a series of 1s and 0s.
Most computers use this code to represent text, making it possible to transfer data
between computers.
Binary - Answers- The representation of data using two options, such as off-on or 1-0.
OCR (Optical Character Recognition) - Answers- The ability of a device or software to
digitize text from printed sources.
microprocessor clock - Answers- a timing device that sets the pace for executing
instructions.
MIDI (Musical Instrument Digital Interface) - Answers- specifies a standard way to store
music data for computers.
Music composition software with MIDI support makes it easy to place notes
sampling rate - Answers- the number of samples taken per second when sound is
recorded
Image compression - Answers- any technique that recodes the data in an image file so
that it contains fewer bits
Vector Graphic (Math) - Answers- set of instructions for creating a picture (floor plans,
engineering diagrams, and spreadsheet charts)
CPU (Central Processing Unit) - Answers- the brain of the computer
form factor - Answers- the size and dimensions of a device or components (circuit
boards and system units)
system unit - Answers- the part of a digital device that holds the system board
Server - Answers- "serves" data to computers in a network.
ALU (Arithmetic Logic Unit) - Answers- CPU logic circuits that perform basic arithmetic
(add, subtract, multiply and divide).
word size - Answers- the number of bits that a microprocessor can manipulate at one
time; it limits the amount of memory that the processor can access
CISC (Complex Instruction Set Computer) - Answers- Larger component that is
designed to handle multi-step problems
, RAM (Random Access Memory) - Answers- a temporary holding area for data (Most
RAM is volatile, meaning it needs electrical power to hold data)
ROM (Read Only Memory) - Answers- data stored in it may only be read. Permanent
Storage.
Magnetic Storage - Answers- magnetizing microscopic particles on a disk or tape
surface
Optical Storage - Answers- data as microscopic light and dark spots on the disc
surface. (blu rays, CDs)
Reflected light is collected by a lens and converted into 0s and 1s that represent data
Solid State Drive - Answers- is a storage device that typically uses flash memory to
store data instead of hard disk drive.
device driver - Answers- software that helps a peripheral device establish
communication with its host device (printer)
LCD (liquid crystal display) - Answers- produces an image by filtering light through a
layer of liquid crystal cells
RAW data - Answers- facts about person place or thing
Bandwidth - Answers- the transmission capacity of a communication channel
boardband (25 megabits per second) - Answers- A term used to refer to
communications channels that have high bandwidth.
Niche Device (speciality devices) - Answers- all contain a microprocessor: smart watch,
ebook reader.
WAN (Wide Area Network) - Answers- An interconnected group of computers and
peripherals that covers a large geographical area. (Internets the worlds largest)
LAN (Local Area Network) - Answers- An interconnected group of computers and
peripherals located within a relatively limited area. (campus)
PAN (Personal Area Network) - Answers- An interconnected group of personal digital
devices located within a range of about 30 feet.
Handshake - Answers- A process where a protocol helps two network devices
communicate. (Negotiations of protocols)
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