is ajunkfilejunk files.these filesare not useful. for example, temporaryfiles, oldfilesandrecentfile.allfiles must becleanedasif thepilewill be spendingyour hard diskspace. consequently, the performance ofharddiskis slowso that the effectonthe performance ofthe computer itself. youleaveat least15% of the totalcapacity ofyourharddisk. junkfiles do notappear out of nowhere. whenyouopen theapplicationprogram, theprogramautomaticallycreatetemporaryfiles, nowindowsexceptitself.temporaryfileis deletedby itselfautomatically when theprogramcloses.however,sometimesthe temporaryfilewith extension.TMPstill left in theharddiskandnot deleted. longthe temporaryfilewill fillyourharddisk.
select thedrivewhereyou will doa diskcleanup, clickoktorun theexecutable.
in addition tothe above method, thereis no wayto deleteautomatically whenwindowsis started up,is to create abatchfile. open theautoexec.batfilecontained in theroot-directory C: withnotepad. in the last line, type thecommand: DelC: \windows\temp\*. TMP. then, save thefile. binfileswith extensionTMPis not just, there's morelikeBAK, OLD, SIK, CHK, and much more. binfileisnotfound onlyin thetempfolder, butscattered acrossyourharddiskandhardto findeventoremove them. youcan get aroundbyclickingthe startmenu|fine|filesandfolders. namedinthecolumn, type theextension*. bak; *. chk; *. tmp;*. old; *. sik. lookinthe contentscolumnonmycomputer, thenyouclickfindnow.
after thesearch is complete, clickon onefile,thendelete todelete. Thismethodonly removesone by onefile.to select allfiles, press the key combinationShift+A,thendelete. to searchgarbagefiles, click thefilemenu|savethe search. after that, willappeara newiconfilesnamed@. bak; @.tmp;@. old;. the moreyou oftendo cleaningjunkfiles, it will affect theperformance ofyour computer'sharddisk.
in addition to usingthis method,youcandeletejunkfiles usingutilitysoftware. one of them isthismechanic.utilitasmempunyaibanyaksystemto optimize thefeaturesforwindows. one of them, the abilityto findandremovejunkfiles. you can downloadfrom theinternetatsiteswww.lolo.com. Theprogramis shareware. within 30days, the programwill be inactiveby itselfeven ifyoureinstall.togetitsfullversion, youhave toregisterorpay. to run it, firstdo the installation. after installation,the steps:
select themenufind andremovejunkandobsoletefiles.to eliminatejunk files, youfirstselect thedriveyou are going toclean it. Clickscanto begin the search.
after thefileis found, clickremoveallentriestoremove. clickyesandexittoexit.
the second is theRJ-45 jack. jackis similar to ahometelephonejack. onlythe largersize. RJ-45 jackconsistsof8 pins, according to thenumber ofUTPcables
crimpingtoolorcrimpingpliers. hardwarethatis similar toapair of pliers.however, unlikeits functionpliersin general. crimpingtoolis usefultoclip thecableto theRJ-45 jack.
allthe abovehardwarecan be found atmostcomputer stores. the price isnottooexpensive.
UTPcablestraight type I will nowdiscuss how toinstall. The firstishow to installUTPcablestraight type. for itto dothe following steps:
peeledend of the wireabout 1cm, so that thesmallwiresthat are insidelook.
attachthe cablesandstraightens.thencollatedand thetrimonthe whitecolorisorange, orange, green, white, blue, whiteblue, green, whiteandchocolatebrown. afteritcutthe edgesso that theaverageof each other.
after astructuredcabling, RJ-45jackgrab. as I saidearlierthisjackconsistsof8 pins. pin 1of thejackislocatedadalahpinthe leftifyourfacing thepinposition. sequentialto the rightis thejack2, 3, 4, andso on.
theninsert thewiresinto theRJ-45 jackin the orderwasas follows:
Orange-white on pin1
Orangetopin 2
Green-white on pin3
Blueon pin4
Blueand whiteon pin5
Greenon pin6
White chocolateonpin7
Brownon pin8
insert the cableuntilthe tip isstuckinthejack.
insert theRJ-45jackwhichis mountedwith thecablebeforecrimpingpliersin your mouthcorrespondingtothepinRJ-45jackin the mouthpliers. nowhadajackflopstangcrimpingpinstickingupall overthewiring. usuallyif thepinisstuckjackwill give voice"click".
now you've finishedinstallingthe RJ-45jackon the end ofthe first cable. tothesecondend of the cable, the steps are the same as thefirst oneend of the cableinstallation. torepeattheearlierstepstoinstall theRJ-45jackon the end ofthesecondcable. UTPcablestraight typearrangementyou can seein the picturebelow:
Caption: H : green HP : greenand white OP : orangeand white B : blue BP :blueand white O : orange CP : white chocolate C : brown
UTPcabletypecross how to installUTPcablestraight typeI describedearlier.NowI will discussabouthow to install thetype ofcrossUTPcable. UTPcablingtocrossalmost the sametypeby placing astraightUTP cabletypes. about thesameas beforethe technicalinstallation. the difference isthe colorsequence ofwiresatthesecondend of the cable. The firstend of the cable,the cable structurewithUTPcablestraight typearrangementare:
Orangetopin1
Orange-whiteon pin2
Greenon pin3
Blueon pin4
Blueand whiteon pin5
Green-white on pin6
White chocolateonpin7
Brownon pin8
tothesecondend of the cable, the colorarrangementdifferent fromthe firstend. As for thearrangement ofthe colorsis:
Green-whiteon pin1
Greenon pin2
Orange-white on pin3
Blueon pin4
Blueand whiteon pin5
Orangetopin6
White chocolateonpin7
Brownon pin8
compositionhadwiringyou can seein the picture below
Caption: H : green HP : greenand white OP : orangeand white B : blue BP :blueand white O : orange CP : white chocolate C : brown
the end resultwillcrossUTP cabletypeslikethis:
Caption: H : green HP : greenand white OP : orangeand white B : blue BP :blueand white O : orange CP : white chocolate C : brown
the conclusion isifyou plug intheUTPstraight typearrangement ofcolorson bothends of the cableis thesame. whereasUTPinstallationwaycross type, color composition different from thefirstend of the cableend of thesecond cable. tutorialhow to installthistype ofstraightUTPcableandcrosstype.