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.

Why is it a good idea to defrag your hard disk regularly?

Read this excerpt from "Edward Jenner and the History of Smallpox and Vaccination." In 1757, an 8-year-old boy was inoculated with smallpox in Gloucester; he was one of thousands of children inoculated that year in England.

What tasks do most operating systems perform? Pick more than one! 1. Allocating RAM to open programs 2. Indexing files and folders 3. Managing communication between hardware and software 4. Modifying spreadsheets 5.

Explain the naming rules for creating variables, and then provide three examples using the data types int, double, and char and assign values to them.

What are the advantages of using charts or graphs in spreadsheet software?

Bob has been assigned to set up a digital certificate solution for use with e-mail. One of the requirements he has been given is to ensure that the solution provides for third-party authentication. Which of the following should he choose PGP X.

according to the National Automobile Dealers Association, a single dealership may employ people with as many as 57 different A. job titles. B. technicians. C. salaries. D. specialists

Which page feature is used in long documents to assist readers in quickly finding information in the document without having to turn through all the pages? bibliography cover page index none of the above

How do diferent types of software work together? Check all that apply Application software is the middleman between the user and the OS. The OS translates application software instructions into a language the BIOS understands.

How can technology be misused? give some hypothetical instances where this could occur?