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8 Which of the following best describes the operating system s user interface A It enables the system to communicate with peripheral devices B It provides a means for the user to enter commands and retrieve data C It provides a display of the system hardware to the user D It provides error handling or notification displays when communicating with hardware 9 To manipulate and organize data and programs, which of the following must the OS do (Select two) A Identify all the data and programs on the system and organize them in a binary-code format B Provide a method to identify data according to the type of program that uses that particular data C Provide a naming system for each drive D Give the user an interface to assign drive letters to drives 10 What type of memory stores running programs in a swapfile on a hard drive A B C D Extended memory Flash memory Virtual memory Random access memory

Modern hard drives have many other features that are worth knowing about, but that rarely impact beginning techs A couple of the more interesting ones are spindle speed and third-party hard drive tools If you have a burning desire to dive into hard drives in all their glory, you need not go any farther than the Storage Review, an excellent site dedicated solely to hard drives Here s the link: wwwstoragereviewcom

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1 2 3 4 5 6 7 8 9 Start | Run | Type regedt32 and clicking OK will start the Registry Editor in Windows XP HKEY_DYN_DATA is not a valid Registry root key in Windows 2000/XP Files deleted from removable drives are not stored in the Recycle Bin and cannot be retrieved In Windows XP, typing cmd or command at the Start | Run dialog box starts the 32-bit command line interface Pressing the WINDOWS key or the CTRL-ESC key combination brings up the Start menu All of the above are the major functions of an operating system C:\> is a typical command prompt The user interface enables users to input commands and retrieve data The user must have some method to know which data files are used by particular programs Further, the OS must provide a naming system for every drive Virtual memory holds the swapfile (or pagefile)

Disk Management is a good tool, but is limited for some situations Some really great third-party tools on the market can give you incredible flexibility and power to structure and restructure your hard drive storage to meet your changing needs They each have interesting unique features, but in general they enable you to create, change, and delete partitions on a hard drive without destroying any of the programs or data stored there Slick! These programs aren t on the CompTIA A+ exams, but all PC techs use at least one of them, so let s explore three of the most well-known examples: Symantec s PartitionMagic, VCOM s Partition Commander Professional, and the open source Linux tool, GParted

The biggest problems you ll see with USB are the result of improper drivers If you know how to recognize these problems from error messages or by using third-party tools, you shouldn t have too much trouble fixing them Windows XP comes with good built-in support for what Windows calls human interface devices (HIDs), such as keyboards and mice It also does a good job supporting most USB mass storage devices, such as USB thumb drives However, once you move outside of these two classes of devices, Windows really needs the drivers supplied by the manufacturer to work properly, if at all Step 1 Connect any HID or mass storage USB device to the XP system without first installing the supplied driver Does the device work as expected Is it missing any features Does the device even come with drivers Write down your conclusions and unplug the device

Programs stored on ROM chips flash or any other kind of ROM chip are known collectively as firmware, as opposed to programs stored on erasable media that are collectively called software

This chapter picks up where 15 left off You ve had the overview and user-level tour of Windows Now it s time to look at tools and the features of Windows techs need to know You ll learn about tech utilities, the boot process, and the structure of Windows The chapter wraps with a round-up of the current versions of Windows, from Windows 2000 Professional to Windows Vista Ultimate Edition

To talk to all of that hardware requires hundreds of little services (2 to 30 lines of code each) These hundreds of little programs stored on the system ROM chip on the motherboard are called, collectively, the system BIOS (See Figure 510) Techs call programs stored on ROM chips of any sort firmware The system ROM chips used on modern PCs store as much as 2 MB of programs, although only 65,536 bytes are used to store the system BIOS This allows for backward compatibility with earlier systems The rest of the ROM space is put to good use doing other jobs

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