Which of the following applies to Internal DOS commands?
Options: Internal commands can be run whenever the DOS prompt is displayed, Internal commands are reserved for DOS-level programming, Internal commands can only be executed from a batch file, Internal commands are stored on disk separately from COMMAND.COM
Options: A) Mechanical analog computers have existed for thousands of years
B) There are mechanical analog computers and electronic analog computers.
C) All electronic computers are digital computers
D) All of above are false
Why does the data communication industry use the layered OSI reference model? It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers. It encourages industry standardization by defining what functions occur at each layer of the model.
. Whatâ€™s a quick way to extend these numbers to a longer sequence, for instance 1 through 20?
Options: a. Select both cells, and then drag the fill handle over the range you want, for instance 18 more rows b. Select the range you want, include both cells, point to fill on the Edit menu, and then click down. c. Copy the second cell, click in the cell below it, on the standard toolbar click the down arrow on the Paste button, and then click Paste Special d. All of above