Vannevar bush imagined a desktop computing machine that would allow people to access data stored in various information centers throughout the world. this device was called a:
a. memex.
b. mainframe.
c. laptop.
d. pc.

What is stored in str after the following code executes? string str = "computer science"; int i = 0; while (i < 8) { if (str. indexof("m") < i) { str = str. substring(0, 2) + str; } i += 2; } computer science cocomputer science cococomputer science cocococomputer science computer scienceco

People with high self-esteem: accept their strengths and weaknesses. believe that failed experiences are failures of their whole self. feel good about who they are only when they reach total success. need positive external experiences to counteract negative feelings that constantly plague them.

What is domain name system (dns)? allows dynamic ip address allocation so users do not have to have a preconfigured ip address to use the network converts ip addresses into domains, or identifying labels that use a variety of recognizable naming conventions the efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures the integration of communication channels into a single service