1、從電源來說，正軌工控機電源(yuan)和(he)普通(tong)(tong)電源(yuan)是(shi)不相同的(de)，它里邊選用的(de)電阻電容和(he)線圈等(deng)抗沖擊抗煩擾(rao)要比(bi)普通(tong)(tong)家用的(de)高出(chu)幾級(ji)，帶(dai)載容量也(ye)大許(xu)多； 

2、從外(wai)觀上(shang)(shang)看，普(pu)通電(dian)腦多(duo)數是(shi)(shi)敞開的(de)，表現上(shang)(shang)有(you)較多(duo)散(san)熱(re)孔，只需一個電(dian)源電(dian)扇向機箱外(wai)吹(chui)(chui)風以來散(san)熱(re)，而工控機機箱（以標準19英寸為例）則是(shi)(shi)全封鎖的(de)，重(zhong)量(liang)上(shang)(shang)要比普(pu)通電(dian)腦機箱重(zhong)的(de)多(duo)，由于(yu)它用(yong)(yong)的(de)板材(cai)很厚，厚所(suo)以強健，里(li)邊不只僅有(you)一個電(dian)源用(yong)(yong)的(de)電(dian)扇，還有(you)一個用(yong)(yong)來堅持機箱內(nei)正壓強的(de)風量(liang)更更大的(de)內(nei)吹(chui)(chui)電(dian)扇，這樣外(wai)型(xing)構造能夠防塵，一同還可(ke)屏蔽電(dian)磁(ci)等對其內(nei)部(bu)的(de)煩擾； 

3、從內部結構(gou)上(shang)(shang)看(kan)也(ye)(ye)有(you)(you)顯(xian)(xian)著不(bu)同(tong)，普通(tong)電腦普通(tong)只(zhi)需一個主板(ban)(ban)(ban)(ban)(ban)，上(shang)(shang)面有(you)(you)CPU插槽(cao)，內存槽(cao)等(deng)標準(zhun)配(pei)備部件(jian)(jian)，其(qi)它的(de)(de)如獨立顯(xian)(xian)卡等(deng)則(ze)(ze)插在(zai)主板(ban)(ban)(ban)(ban)(ban)上(shang)(shang)的(de)(de)擴(kuo)(kuo)展槽(cao)上(shang)(shang)，如今多為PCI插槽(cao)，工控機則(ze)(ze)不(bu)同(tong)，它有(you)(you)一個較(jiao)大的(de)(de)母(mu)板(ban)(ban)(ban)(ban)(ban)，也(ye)(ye)叫無源底板(ban)(ban)(ban)(ban)(ban)，這(zhe)(zhe)(zhe)(zhe)塊板(ban)(ban)(ban)(ban)(ban)子上(shang)(shang)并沒有(you)(you)幾集成電路(lu)，只(zhi)需較(jiao)多的(de)(de)擴(kuo)(kuo)展槽(cao)，帶有(you)(you)CPU的(de)(de)主板(ban)(ban)(ban)(ban)(ban)要插在(zai)這(zhe)(zhe)(zhe)(zhe)個母(mu)板(ban)(ban)(ban)(ban)(ban)上(shang)(shang)特其(qi)他插槽(cao)里(li)，其(qi)它的(de)(de)擴(kuo)(kuo)展板(ban)(ban)(ban)(ban)(ban)也(ye)(ye)要插在(zai)母(mu)板(ban)(ban)(ban)(ban)(ban)上(shang)(shang)，而不(bu)是主板(ban)(ban)(ban)(ban)(ban)上(shang)(shang)，這(zhe)(zhe)(zhe)(zhe)樣(yang)的(de)(de)優(you)點是有(you)(you)了母(mu)板(ban)(ban)(ban)(ban)(ban)能(neng)(neng)夠(gou)更好屏(ping)幕掉外界的(de)(de)煩擾(rao)，由于工控機工作的(de)(de)場(chang)所有(you)(you)時比擬惡劣，煩擾(rao)比擬多，這(zhe)(zhe)(zhe)(zhe)樣(yang)就能(neng)(neng)夠(gou)使主機更可靠的(de)(de)工作，一同(tong)大的(de)(de)母(mu)板(ban)(ban)(ban)(ban)(ban)更也(ye)(ye)更簡單(dan)擴(kuo)(kuo)展其(qi)他插件(jian)(jian)，這(zhe)(zhe)(zhe)(zhe)樣(yang)規劃人(ren)員在(zai)開發體系時能(neng)(neng)夠(gou)有(you)(you)更多的(de)(de)選擇，而不(bu)用思索(suo)能(neng)(neng)否有(you)(you)空間放下(xia)。