This is a problem which might come up during a job interview, to try to figure out, how do you think. And it goes something like: “Can you count (i.e. print each number), from 1 to 100, without using a loop?” Now some languages will have some special functions which you can use to do…
Well, as an Assistant Professor of Computer Science (CS), of course I’m going to pick Computer Science… but that might not be the right choice for you, so in this video we look at a few different options. These options include Computer Science (CS), Information Technology (IT), and Computer Engineering (CE), which are the three…
Are you thinking about, or currently in, a Computer Science (CS) program? Do you have questions about the field, and want to know what to expect, and often ask yourself, is this the right place for me? Well, those types of questions, and more will be answered here. As an Assistant Professor and Under Grad…
A computer system consists of a set of hardware and software objects. The protection domain is a set of pairs of objects and rights needed to access those objects. An access matrix is a representation of protection domains. (It is more conceptual than actual however.) Each row specified the object, and a right that can be performed as…
User authentication is the act of verifying the identity of a person who wishes to connect to a computer or a network. This can be done in several ways, but most commonly is through a user name and password. For more complex, or sensitive systems, you may be asked to use two (or more) factor authentication….
Computer security is the freedom from theft of or damage to hardware, software, or information, and from disruption or misdirection of services. Protection is the set of mechanisms and policies that guarantee computer security, including the confidentiality, integrity, availability, and authenticity of all data and services. Common types of compromised computer security Information disclosure Information modification Information…
Two conditions must hold for a deadlock to occur with reusable resources: Hold and wait: A process is already holding one resource and is requesting another resource. Circular wait: A process must issue a resource request that closes a cycle involving at least two processes and two resources. Deadlock is structurally impossible if either of…
One approach to dealing with deadlocks is to allow deadlocks to occur and to provide means for detection and recovery. Recovery from a deadlock can be accomplished by destroying one or more of the processes involved in the deadlock, or by removing some of the resources held by the deadlocked processes. However, this causes a…
