Anyone can tell how to select the following array? Which one is best to choose for genotyping?

Infinium Global Screening Array-24 Kit

Infinium ImmunoArray-24 v2 BeadChip Kit

InfiniumCoreExome-24v1-2_A1.annotated.txt

Illumina HumanExome BeadChips

Infinium Exome-24 Kit

Another question is why these array use another different ID system such as

exm41 1 861349 [T/C] NM_152486 SAMD11 EXON

exm1916089 1 865545 [A/G] NM_152486 SAMD11 EXON

exm44 1 865584 [A/G] NM_152486 SAMD11 EXON

exm46 1 865625 [A/G] NM_152486 SAMD11 EXON

exm47 1 865628 [A/G] NM_152486 SAMD11 EXON

Why not use rs number directly?

https://support.illumina.com/downloads/infinium-coreexome-24-v1-2-support-files.html

I found the convert files. Download link file to change exm id to rs number id.

Thanks.

file=list.files(pattern="*sel2.map")
db<-read.table("/mnt/bigdata/Genetic/Projects/shg047/db/InfiniumCoreExome-24v1-2_A1_b144_rsids.txt",head=T)
for(i in 1:length(file)){
  map<-read.table(file[i],head=F,sep="\t")
  exm_id=unlist(lapply(map[,2],function(x) unlist(strsplit(as.character(x),split="_"))[1]))
  tmp<-cbind(map,db[match(exm_id,db[,1]),])
  write.table(tmp,paste(file[i],"map",sep="."),sep=" ",quote=F)
}