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CS 101 Attendance

CS 101 Attendance. Present Present too. An LCD is used as the display in most laptops because . They are cheaper than CRTs. They are lighter weight than CRTs. They use more power than a CRT. They are higher resolution than a CRT. What is one way to get bonus points in this class?.

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CS 101 Attendance

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  1. CS 101 Attendance • Present • Present too

  2. An LCD is used as the display in most laptops because • They are cheaper than CRTs. • They are lighter weight than CRTs. • They use more power than a CRT. • They are higher resolution than a CRT.

  3. What is one way to get bonus points in this class? 1. going to open labs 2. taking tests 3. writing a paper 4. coming to every lecture

  4. Input data • moves from the outside world to the computer’s memory • moves from the computer’s memory to the outside world • can travel in either direction • is not used any more, the Net is more powerful

  5. GIGO is • A saying about input and output • A peripheral that can scan in documents • A unit of information, 8 bytes is a GIGO • A program that can help you communicate with other people

  6. From Chapter 2 • GIGO stands for “Garbage In, Garbage Out” • If invalid data is entered in a computer program, the resulting output will also be invalid. • If a computer asked you to enter a letter and you enter a number the results you would get back would probably be messed up, or "garbage."

  7. A file with a name likec:\fall10\school\cs101\sheet1.jpg • Is a picture file – the jpg tells you that • Is a text file – the folder name school tells you that • Is a spreadsheet – the filename sheet1 tells you that • None of the above

  8. From Chapter 4 • File names usually contain an extension, which is the part after the dot. • Extensions help people and computers know what kind of information is in the file and what program to use when reading/editing that file • .doc – MS Word Document • .zip – Compressed Zip Archive • .bmp – Bitmap Image • Changing file extension DOES NOT convert the information in the file!

  9. A file with a name likec:\fall10\school\cs101\sheet1.jpg • Is stored at the root of the C drive • Is on a floppy disk • Is stored in the “My Documents” folder. • None of the above

  10. From Chapter 4 • To Find a File in a File System, you must know its PATH • A path is a listing of directories starting at the drive and moving to the file • C:\College\Fall2010\ENG104\Paper1.doc

  11. 0 What’s the difference between storage devices and input/output devices? • There is no difference. • Storage devices are easier to use. • Input/output devices are meant to be used by humans. • Storage devices are meant for short-term use.

  12. 0 A cell in a spreadsheet containing ##### indicates • a decorative border around the data • a problem with the formula in the cell • a column too narrow to display the data • a division by zero

  13. 0 Resolution refers to which quality of a graphical input or output device? • How detailed the captured / produced image is • How fast it can capture / produce images • How many images can be captured / produced • None of these

  14. 0 Which type of device for computer interaction is designed to reduce strain on human users? • QWERTY • Ergonomic • RSI • Optical

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