3.3 Operations on Processes 3.3.1 Process Creation. Processes may create other processes through appropriate system calls, such as fork or spawn. The process which does the creating is termed the parent of the other process, which is termed its child. Each process is given an integer identifier, termed its process identifier, or PID. The parent PID ( PPID ) is also stored for each process.
Definition - What does Electronic Ink (E Ink) mean? Electronic Ink (E Ink) is a proprietary electrophoretic technology and electronic paper display (EPD) patented by E Ink Corporation. E Ink technology is used in mobile devices, such as e-readers, mobile devices, smartphones, smart cards and watches. E Ink is primarily used in digital e-readers. Most digital books use grayscale and rarely use color.
Those companies argue that E Ink makes reading more ergonomic than it would be on self-illuminated screens like the iPad or your personal computer. They boast of having displays that go easy on your eyes, with the same appearance and readability of regular paper. There's no doubt that a long session of computer-based reading can leave your eyes irritated and your brain woolly.