Your Name: _________________________
1. Write your first & last initials here: ___ ___ 1a. What is the hexidecimal value of these initials (IN UPPER CASE)? ________ ________ 1b. Show the BINARY BITS for these two ASCII characters: ________________ ________________ 1c. What is the decimal value of the ASCII character for your first initial? ________ 1d. Change your first initial from UPPER to lower case; show the bits: ________________ 1e. What is the decimal value for this? (i.e. your first initial in lower case) ________ 1f. In hexadecimal, What is the ASCII code for a blank space? ________ 1g. If an ASCII code is 00110011 (in binary), what does it represent? ________________________________ 1f. Explain how to change each character (byte) in string from "lower" to "UPPER" case.
2. Answer the following questions: 2a. How many microseconds are in a half minute? ________________ 2b. If each page of my book occupies an average of 500 bytes, how much disk space will I need to store a 400-page chapter? ________________ 2c. If I buy a 1 Terabyte disk, then how many (500-byte) pages can I store on it (approximately)? ________________ 2d. If a processor executes instructions at a rate of 500 MHz, how many instructions does it execute in one millisecond? ________________ 2e. How fast (in MHz) is a processor that takes 250 picoseconds to executes execute each instruction? ________________ 2f. In binary, how do you express the ASCII code for "Q"? ________________
3. Assume a web page has the following BODY tag: BODY BGCOLOR="#996633" TEXT="#660033" 3a. How would you make the background darker? ________________________ 3b. How would you make the background lighter? ________________________ 3c. How would you make the text darker? ________________________ 3d. How would you make the text lighter? ________________________ 3e. Approximately what color would the background be if each digit "6" (six) became a "9" (nine) and vise versa (each 9 became a 6)? ________________________ 3g. If the each "3" is replaced by "E", in the original BODY tag BODY BGCOLOR="#996633" TEXT="#660033" describe approximate colors that would result for background and text. ... 3h. Would this be a good change? Why or why not? . . .
4. Spreadsheet: 4a. In cell "C3", how would you set the value to always be the sum of the value above it minus the value to the LEFT of it? ________________________ 4b. In cell "C4", how would you set the value to always be the sum of the value to the left of it, minus the value above it? ________________________ 4c. Write the formula you would store into cell A9, to make its value be the sum of cells A6, A7, and A8: ________________________ 4d. Write a formula that you could store into ANY cell to make its value be the sum of cells A7, A8, and A9, and then be able to COPY that formula into ANY other cell to get exactly the same value: [Hint: Use absolute, not relative values.]
5. Which of these devices will keep the information, even if power goes OFF? Write YES next to devices that retain data w/o power; Cross out devices that DON'T. RAM CRT Hard Disk Storage device Floppy Disk Memory Registers Sound card CD File Browser USB flash drive Trackball USB port
6. For each of the following devices, indicate whether it is PRIMARILY an input device, PRIMARILY an output device, both, or neither. (Cross out any that are NEITHER.) INPUT OUTPUT _____ Mouse _____ _____ Printer _____ _____ Power supply _____ _____ Floppy Disk _____ _____ Hard Disk _____ _____ Network Card _____ _____ Millisecond _____ _____ CRT _____ _____ CPU _____ _____ CD _____ _____ ASCII _____ _____ NIC _____ _____ TCP/IP _____ _____ RAM _____ _____ DNS _____ _____ PROM _____
7. Name three other input devices (not listed above): ________________________ ________________________ ________________________
8. Name three other output devices (not listed above): ________________________ ________________________ ________________________
9. For extra credit, describe the various parts of the "URL" -- as many as you can, in the proper order -- and also specify the "default value" for each part.