Exam 1: Introducing Operating Systems

____ are self-contained modules (units of software) that provide models of the real world and can be reused in different applications.

A thread (or ____) can be defined as a unit smaller than a process, which can be scheduled and executed.

The most common mechanism for implementing multiprogramming was the introduction of the ____ concept, which is when the CPU is notified of events needing operating systems services.

A system with ____ divides programs into parts and keep them in secondary storage, bringing each part into memory only as it is needed.

Card systems date from the earliest computers, which relied on punched cards or tape for input when a job was entered by assembling the cards into a deck and running the entire deck of cards through a card reader as a group.

A hybrid system is a combination of the ____ systems.

A process requires space in main memory where it resides during its execution although, from time to time, it requires other resources such as data files or I/O devices.

The first bug was a moth trapped in a Harvard computer.

Onboard systems are computers placed inside other products to add features and capabilities.

The central processing unit (CPU) is the brains of the computer with the circuitry to control the interpretation and execution of instructions.