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Removing RAM

Power of the computer

Remove the case

The RAM looks like a thin Slide

Use both thumbs to careully depress the locking levers and do it slowly so

that u dont pop !MM into the air

Take the RAM out by holding it rom the top use gloves i necessary

Removing videocard

Uninstall all the current video card sotwares

Power of the computer

"pen the computer

ischarge all the static charge by wearing antistatic wrist wrap connected to

a grounded ob#ect

isconnect all internal cables connected to the graphics hardware

locate unscrew$unclip graphics card rom the case%s mounting bracket

&ently pullout the e'pansion slot lever to remove the card rom the slot

Slide the card out(remove it rom computer and keep it in an antistatic bag

Removing hard drive

)ack up all your data(Turn of the computer and unplug everything rom the

back

"pen the computer case

*ocate the harddrive

Push the lever$Unscrew rom the cage to loosen the harddrive

Slide it out gently using both hands

Remove the !+ cable and the power cord

Remove the harddrive and keep it in an antistatic bag

,heck disk

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Used to check the -le system and the status o the system%s harddrive%s

,hecks your hardrive or errors and repairs them i it can

,hecks or bad sectors

Used when harddrive might not be uncitoning properly(data stored notwritten properly

isk deragmentor

"vertime disks become ragmented and the computer slow down as it has to

look at many places to -nd a -le

A tool that reaaranges the data on your computer

Reunites ragmented -les so that the system can run more e.ciently

Makes P, aster as it takes less time to -nd the same -le

!mportant utility sotware/ Malwarebytes(Search and estroy( ,,leaner

,tl Alt el to open Task manager

+'amining processes/ +'amine the perormance tab and i u notice that it is

unusually high(go the the processes and check which programs are taking

most memory( and end them i they are unecessary$Unknown0 1ou can also

end programs which are not responding or not working properly0

iference between -rewire 233$433

5irewire 433 has aster data transer speed 6433mbps7 than -rewire 233

6233mbps7

Their adapters are diferent

iference between US) 803 and US) 903

US) 903 has a much transer data transer rate 6243 Mbps7 :hile US) 808

only has 89mbps

Thats about 23 times ast

Ma'imum wire length o US) 803 is ; meters while US) 903 is < meters

US) 903 devices need to connect as a 803 device and negotiate or a 903

connection

:ays to imporve computer speed/

7/25/2019 TEJ3M Notes

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Ad#ust visual efects/ "ptimi=e perormance by changing how windows and

menues appear

Reduce items that run on startup/Startup programs re>uire considerable

amount o memory

Remove programs no longer in use/ Theyre uselessly taking up space

,lean your browser cache( browsing history thumbnails etc

Scan and remove or Malware

Scan and remove or viruses

Add more RAM

derag your drive

Things to know beore buying a computer/

More cores more Speed

More RAM more speed

&raphic designers like user riendly creative and easy to use ,omputer and

"S%s like Apple and MA, "S and in the meantime re>uire high graphic

capabilities

while gamers re>uire more common "S%s like windows because its easy to

troubleshoot(large hard disk spaces and very high graphic capabilities

?eep on a budget( choose the best Processor and Motherboard or your

re>uirement and choose a RAM that suits that0Also choose the best &raphics

cards(@ard disk capacities( cooling systems and Audio cards$e>uipment as

per your re>uirement0! an important thing goes over budget(try to reduce

some other stuf which is less important0

Troubleshooting methods/

Substitution/ troubleshooting by substituting a known good component or a

known bad component0 5irst investigate and analy=e the problem you have0

Then select a working replacmenet o the same thing(i the problem goesaway( then youve ound solution and repair the component on site$elsewhere

other whise do urther anaylysis0

uick solution/ involves the use o the astest solution to stop the problem

rom recurring in the near uture but doesnt end it0

,heck recent changes/ ! you -nd out a new problem in the system( think

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about the recent changes you made to it(try removing those changes and i

the problems goes away then it was because o that speci-c change

ivide and con>uer/ ! you donot know the e'act location o the problem(

Then check each component one at a time 6possibly by removing it7( this way

youll create less mess and itll be aster and easier to identiy the problem0

,onductor/ A material that allows current to pass through it ,opper

!nsulator/ A matrial that doesnt allow current to pass through it :ood

Semi condictor/ A material which conducts electricity under some conditions

but not others Silicon or &ermanium

Robotics/

5undamental components o robots/

)rain/ Part o the system that responds to stimulation(,ontrols the actions(

Responses to sensors

)ody$chasis/ The mehcanisms o AMR which allow to act and be acted uponB

the chasis to hold the robot together

Actuators/ A mechanical device or moving or controlling ie motors etc

Sensors/ Allows the robot to respond to environment

Power Supply/ The #uice to run the computers( motors and sensors

Cero turning radius/ The turning o a robot without ollowing a circular path is

called ==ero turning radius0?eeping the centre o mass at a -'ed position and

rotate so that it moves 843 degrees

Autonomous/ )eing able to move on its own accord completely without input

rom an outside source0

)lind motion/ The motion o robot without any instruction or sensor

input(blindly

Purpose/ Should have a useul or productive purpose and not o harming

anyone

+nvironment/ Should not be harmul to the environment like being made o

Precious Raw materials(releasing harmul waste during maintainence or

disposal or #ust harming someone during its unction0 Should be made o

technology easily availabale in the market so that parts( troubleshooting

guides and technicians are easily available0

7/25/2019 TEJ3M Notes

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Topologies/ Point to point(star( ring( bus

"S! layers/ presentation /ata structures data representation data readibility

and ormat Protocol D,P A5P

Application/ closest to the user( provides service to applicants http tp

Session/ !nterhost communication(establishes manages termiantes sessions

manages dialouge between parties protocol D+T)!"S

,abling/ Twisted pair(+thernet( ,oa'ial( -ber optics

)ene-ts o a *AD/ Share peripherals( documents( internet(,entrali=ed

administration(reduced operating costs(good or businesses(centrali=ed

backups

)ene-ts o peer to peer/

5ailure to one peer doesnt afect unctioning

Do need or central administrator as every user is administrator(can control

shared resources

less building and maintainence cost0