(Summary) Computer Concepts Final Exam, Questions and Correct Answers, With Complete Verified Solution 2024.
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Computer Concepts
(Summary) Computer Concepts Final Exam, Questions and Correct Answers, With Complete Verified Solution 2024.
Computer
digital device that accepts input, processes and stores inout, and provides output
Software
virtual elements
-OS
-Software applications
examples of computers
laptops
desk...
(Summary) Computer Concepts Final Exam, Questions
and Correct Answers, With Complete Verified Solution 2024.
Computer
digital device that accepts input, processes and stores inout, and provides output
Software
virtual elements
-OS
-Software applications
examples of computers
laptops
desktops
All-In-Ones
Tablets
Smartphones
Mainframes
Servers
Gaming Consoles
Embedded Devices
Four basic computing functions
input
process
output
store
Hardware
physical elements of the device
-processor
-memory
-storage
ex: System Unit, Printer, Monitor, Keyboard, Mouse, Router
System Unit
Houses the Motherboard
-aka Tower
motherboard
circuit board that holds the computer's CPU
CPU
computer's main microprocessor
-location depends on type of computer
where are the different places of CPUs?
Desktop - in tower/chassis
Laptop - beneath keyboard
Smartphone - behind touchscreen
laptop
mobile hinged computer with an integrated keyboard
-come with a full OS
,-comes with LED, OLEd, IG20, and other display screens
-memory can be updated
-plenty of storage
what is the most bought laptop?
Lenovo
Tablet Computer
mobile and touchscreen
-uses mobile OS
-screen size approx 7 in
ex: Apple iPad, Ssmsung Galaxy note tab, Amazon Kindle, Google Nexus, Microsoft
Surface Pro
uses of tablet computers
-light yet powerful
-gains functionality with separate keyboard
-apps may be limited to mobile versions
Desktop
have a separate system unit (chassis/tower)
-peripherals
-large footprint
-SU allows for easy Hardware upgrades
uses of desktops
businesses, families with children, gamers, and computer experts
All-In-One computer
stationary device (like desktop)
-large monitor
-separate keyboard and mouse
-usually touchscreen
-Full OS
-neat, clean look for s desk
-large monitor without large SU
-not easy upgradable
Embedded computer
a computer that is integrated to a larger device/system
ex: watch, programmable thermostat, coffee pot, anti-locks brakes, ignition systems
-usually have small Os/real time OS with limited capability
2-in-1 computer
combines mobility of a tablet with power of a laptop
-full OS
-solid-state hard drive (very fast with strong battery life)
-less storage than laptop
-touchscreen
-keyboard is detachable
-aka hybrid/convertible laptops
smartphone
handheld computer with cellular networking
-limitations: screen size and computing power
, -use mobile versions of apps
-durable technology to emphasize battery life
ex: Apple, Samsung, Google Pixel
Media Players
allow you to listen to audio files and watch videos
-personal media players
-now being used to describe streaming MP such as Roku, Amazon Firestick
Server
computer system in a network that is shared by multiple users
-network server
-web server
-file server
network server
controls access to resources such as printers and apps on a network
web server
controls access to resources on web
file server
used for data storage
Mainframe
more powerful than servers
-used by orgs to process large amounts of data
-commonly used by banks or retailers
Supercomputers
most powerful type
-can evaluate complex data very quickly
-many used by government and large research universities
Processor
brains of computer
-most important hardware component
-located on motherboard
two main components of processors
1. Arithmetic Logic Unit (mathematical tasks)
2. Control Unit (locates, analyzes, and executes instructions)
The Machine Cycle
every time a processor executes an instruction from a program
1. fetch
2. decode
3. execute
4. store
Clock Speed
# of instructions a computer can process in a second
-aka clock rate
-measured in hertz
-modern processors: mils of instructions/second
overclocking
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