It could be either 'Photo Compact-Disc', Process Control Daemon (in Linux) or (more likely) Personal Communication Device.
computer aided learning
hexadecimal
Phone
Information Systems
If you are refering to storage capacity in computer terms, YB means Yottabyte.
Data base
First In, First Out
Portable CD Player? or Pussycat Dolls lols
MG stand for Mega Bytes.GB stand for Giga BytesB stand for bytes
Open Source Software.
Floppy Disk Controller
computer aided design