Distinguish among hardware, software and firmware.
What will be an ideal response?
Hardware consists of the devices of the computer system including its processors, its storage, its I/O devices and its communication connections. Software consists of sets of instructions that programmers write to be executed by the hardware. There are two major software design principles—procedural programming and object-oriented programming. Firmware consists of persistently stored microcode instructions that perform the tasks specified by machine language. Firmware specifies software instructions but is part of the hardware.
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The __________ and __________ operators can be used to increment or decrement a pointer variable.
a. addition, subtraction b. ++, -- c. modulus, division d. All of these e. None of these
The relation shown in Figure 15.12 describes hospitals (hospitalName) that require certain items (itemDescription), which are supplied by suppliers (supplierNo) to the hospitals (hospitalName). Furthermore, whenever a hospital (h) requires a certain item (i) and a supplier (s) supplies that item (i) and the supplier (s) already supplies at least one item to that hospital (h), then the supplier (s) will also be supplying the required item (i) to the hospital (h). In this example, assume that a description of an item (itemDescription) uniquely identifies each type of item.
(a) Describe why the relation shown in Figure 15.12 is not in 5NF.
(b) Describe and illustrate the process of normalizing the relation shown in Figure 15.12 to 5NF.
Compile and run the Java class file provided in section 1 in the Appendix. What is the outcome? Capture the output of the run and write a paragraph to explain the output, paying special attention to the order of the lines.
What will be an ideal response?
Computer forensics analyzes computer systems in gathering potential legal evidence
Indicate whether the statement is true or false