MIS Notes: Bases XHTML RAID

Management Information Systems SKLAR INTRODUCTION: Prof. Sklar likes to jump from one subject to another. Various subjects can be gone over on the period of one day. The notes shown here are depicted right from his lectures from the first to the last day. These notes are configured to be helpful when the exams come. I scored an A for the course with the help of these notes, and hopefully these notes can provide you with the same score as it did for me. Enjoy!!! Binary vs. Decimal Base 10 (Decimal): cannot have a ?10? or bigger. Ex: numbers < 10 Base 2 (Binary): cannot have a ?2? or bigger. Ex: numbers < 2 Base 8 (Octal): cannot have an ?8?or bigger. Ex: numbers < 8 Ex: 2314 ( Can only be a Base 5 or bigger. Ex1: 25210 ( 252 Base 10 convert to Base 2. How many 128?s 64?s 32?s 16?s 8?s 4?s 2?s 1?s 2^7 2^6 2^5 2^4 2^3 2^2 2^1 2^0 1 1 1 1 1 1 0 0 Work shown ( 252 124 60 28 12 4 -128 -64 -32 -16 -8 -4 124 60 28 12 4 0 To Convert: It asks for how many (2^7) 128?s are there in the number 252, then display this number on the corresponding column. Next it asks for how many (2^6) 64?s are there in the number 124 (252-128), then display this number on the corresponding column, so on and so forth. To check: Multiply every number just above and below the line with its corresponding columns and add up the products to get the original number of 252. For instance, (1* 2^7)+(1*2^6)+ (1*2^5)+ (1*2^4)+ (1*2^3)+ (1*2^2)+(0*2^1)+(0*2^0) = 252. You should be able to convert back to the original number if your work is correct by translating the original number into binary numbers (0 or 1). HTML (Hypertext Markup Language) ? Displays language for the browser and it sends and receives http message. HTML can displays radio buttons, textboxes, checkboxes, and buttons, etc. However, HTML cannot tell which button is selected or what is in textbox. The primary characteristic of radio buttons is that it only allows you to select one. At most only one radio button can be selected. 6 Requirements for XHTML: Proper Nesting Indent Properly Always have HTML, head, body tags Quote attribute values Lower Case tags Close tags : font is the tag, size is the attribute of the tag , and ?7? is quoted because it is the attribute value. The color is the attribute of the tag and ?red? is quoted because it is the attribute value. Whatever is inside the font tag are the attributes of the tag and its values. *title*-- Colors Primary Secondary Red Orange Blue Purple Colors CONCEPTS TO KNOW: This modifies the tag by setting the background color of the entire page.

Primary	Secondary
Red	Orange
Blue	Purple

This creates a table and a 10- pixel border around the perimeter of the table and inserts grid lines. Whatever is between the tag has the attributes listed. The largest font size is 7 and anything larger defaults to 7. table row: specifies that what follows is a row of the table.

table data: specifies a data entry in that row.

table header: specifies that this row has headers for each row of the column of the table. These will be bolded automatically and centered and can appear anywhere: not just at the top of the table. VPN Virtual Private Network ? a company using the Internet as part of its internal network. VMI Vendor Managed Inventory ? supply or vendor keeps track of inventory and replenishes as needed. FLOPS- Floating Point Operations Per Second. mFLOPS ? millions of Floating Point Operations Per Second. Ex. 2.0 3.0 4.0 etc. mIPS ? millions of Integer Operations Per Second. Ex. 2 3 4 etc. 2.0 and 2 are stored as different binary numbers. A PC has 100 mFLOPS. Entering numbers into the calculator has .0001 mFLOPS. Bit consists of 1 Binary Digit {either 1 or 0} Byte consists of 8 Bits or Binary Digits together {ex. 01101011} Primary Storage: Register Memory ? very fast. It disappears in less than 1 second. RAM Random Access Memory ? slower than Register Memory. It stays available as long as computer is on. ROM Read-Only Memory ? stays available even when computer is off. They are also boot instructions. Files are stored in CDs through their clusters. Clusters are empty spaces around the perimeter of the CD used for storing files. There are thousands of clusters on a CD where files are stored. To Delete a File from CD cluster: It doesn?t actually erase the film from the cluster but the CD marks the cluster as ?available to be overwritten.? RAID Redundant Array of Independent Disks ? these are seven hard drives seen as one logical hard drive. RAID Level 0: STRIPPING ? Pieces are stored on each drive so all are obtained at one time. RAID Level 1: MIRRORING ? Two hard drives have same exact information ? when save file it saves file to both hard drives ? same for delete. It acts as a backup to save file on second hard drive. Back Next About this note By: Anonymous Textbook: Exploring Microsoft Office 2007 Plus Edition Created: 2009-05-19 File Size: 4 page(s) Views: 80 About StudyBlue STUDYBLUE makes things that make you better at school. Things like online flashcards with photos and audio. Things like personalized quizzes and friendly reminders about when (and what) to study next. Think of it as a digital backpack™: access to all of your study materials online and on your phone. STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us. “I have used this website for three exams, and I see a huge difference in my test results.” Naj