Lies, Lies, Lies
Posts made by Michiko
MySpace is an online community that allows friends to keep in touch and meet new people as well. It started out as a website that bands could use to promote their music, but has since grown into a more general community of friends. Anyone who is at least 14 years old can sign up for a MySpace account at no cost. Once you sign up, you can customize your profile by adding information about yourself, listing your interests, hobbies, and educational background, and uploading photos of yourself and your friends. You can also create your own blog for others to read.
Once you have created a profile on MySpace, you can search or browse other users profiles. If you want to add someone as a friend, just click the Add to Friends link on that persons profile page. If the person approves your friend request, he or she will be added to your list of friends. Some users have only a few friends, while others have several thousand. You can send a private message to a user by clicking the Send Message link or post a comment on his or her page by clicking Add Comment. Comments can be seen by all visitors to that persons profile, so be careful what you post!
The friends concept is the heart and soul of MySpace. By building a list of friends, you have your own network of people readily accessible from your profile page. When you click on a friends image, you can view their profile and all their friends. This makes is easy to meet friends of friends, and their friends, and so on. The number of people you can meet on MySpace is practically endless, which may be a part of the reason there are so many MySpace addicts out there.
In order to create a MySpace account, you need to choose a username and password, which is used for logging in to your account. This gives you control over what appears on your profile page. The only way others can add content to your page is through comments, which you can choose to delete once you have logged in to your account.
Multitasking is processing multiple tasks at one time. For example, when you see someone in the car next to you eating a burrito, taking on his cell phone, and trying to drive at the same, that person is multitasking.
Multitasking also refers to the way a computer works. Unlike the phone and burrito juggling driver, a computers CPU can handle many processes at one time with complete accuracy. However, it will only process the instructions sent to it by the computers software. Therefore, to make full use of the CPUs capabilities, the software must be able to process more than one task at a time, or multitask.
Early operating systems could run multiple programs at one time, but did not fully support multitasking. Therefore, a single program could consume the computers entire CPU while performing a certain operation. Basic operating system processes, such as copying files, prevented the user from performing other tasks, such as opening or closing windows. Fortunately, since modern operating systems include full multitasking support, multiple programs can run at the same time without affecting each other. Also, multiple operating system processes can take place simultaneously.
Since multitasking can handle several tasks at once, it also improves the stability of the computer. For example, if one process crashes, it will not affect the other running programs, since the computer handles each process separately. In other words, if you are in the middle of writing a paper in a word processing program and your Web browser unexpectedly quits, you wont lose your work. Thats when you can really be thankful for multitasking.
Lightning is a proprietary I/O interface designed by Apple for its mobile devices, such as the iPhone, iPad, and iPod. It was first introduced in September, 2012, with the iPhone 5 and new iPod models. It was later added to iPads, beginning with the 4th generation iPad and the first generation iPad mini. The Lightning interface replaced the the previous dock connector, which Apple products used since 2003.
The Lightning connector has eight pins and is about one third the size of the 30-pin dock connector it supersedes. Instead of having mobile latches on the sides, the Lightning connector has small divots on each side that allow it to snap into place. Even without magnets or clips, the Lightning connection is designed to be strong enough to hold a device upside down by the cable without the cable detaching.
Unlike most other I/O interfaces, such as USB, Firewire, and the previous dock connector, the Lightning connector is reversible. The connection is fully symmetrical and the connector can be inserted either way into a Lightning port. This means it is impossible to insert the cable upside down, which makes it easier to plug in and reduces wear and tear on the interface. The order of the pins are recognized dynamically by the device when the connection is made, allowing power and data to flow through the correct channels.
The name Lightning is correlated with Thunderbolt, another I/O port Apple began using around the same time the Lightning interface was introduced. However, unlike Thunderbolt, Lightning is proprietary and is only used in Apple products. While most mobile devices (such as Android phones) have standard mini-USB or micro-USB ports, if you have an Apple device, you will need a Lightning cable to charge it and transfer data.
When data is transferred over a communications medium, such as the Internet or a local area network (LAN), the average transfer speed is often described as throughput. This measurement includes all the protocol overhead information, such as packet headers and other data that is included in the transfer process. It also includes packets that are retransmitted because of network conflicts or errors. Goodput, on the other hand, only measures the throughput of the original data.
Goodput can be calculated by dividing the size of a transmitted file by the time it takes to transfer the file. Since this calculation does not include the additional information that is transferred between systems, the goodput measurement will always be less than or equal to the throughput. For example, the maximum transmission unit MTU of an Ethernet connection is 1,500 bytes. Therefore, any file over 1,500 bytes must be split into multiple packets. Each packet includes header information (typically 40 bytes), which adds to the total amount of data that needs to be transferred. Therefore, the goodput of an Ethernet connection will always be slightly less than the throughput.
While goodput is typically close to the throughput measurement, several factors can cause the goodput to decrease. For example, network congestion may cause data collisions, which requires packets to be resent. Many protocols also require acknowledgment that packets have been received on the other end, which adds additional overhead to the transfer process. Whenever more overhead is added to a data transfer, it will increase the difference between the throughput and the goodput.
As the name implies, floating point numbers are numbers that contain floating decimal points. For example, the numbers 5.5, 0.001, and -2,345.6789 are floating point numbers. Numbers that do not have decimal places are called integers.
Computers recognize real numbers that contain fractions as floating point numbers. When a calculation includes a floating point number, it is called a floating point calculation. Older computers used to have a separate floating point unit (FPU) that handled these calculations, but now the FPU is typically built into the computers CPU.
Flash drives have many names — jump drives, thumb drives, pen drives, and USB keychain drives. Regardless of what you call them, they all refer to the same thing, which is a small data storage device that uses flash memory and has a built-in USB connection.
Flash drives are typically no more than two to three inches in length and less than an inch in width. Their size and shape may resemble a thumb or a small pen (which is where the names thumb drive and pen drive come from). Flash drives are also very thin, often having a depth of less than a centimeter. Because of their small form factor, they are highly portable and can easily fit in a pocket or on a keychain (hence the name keychain drive).
Early flash drives could store only a few megabytes of data, but modern flash drives can store several gigabytes of information. Since they are small in size but have large storage capacities, flash drives have replaced most previous portable data storage mediums such as floppy disks and removable hard disks like Zip disks. Because they have a built-in USB connection, flash drives also dont require a special disk drive to be used. Instead, they can be used on any computer with a USB port, which nearly all modern computers have.
You can use your mouse to drag icons and other objects on your computer screen. Dragging icons from your desktop or an open window to another folder will move the objects to the new folder. You can also drag icons to the Trash (Mac) or the Recycle Bin (Windows) if you want to delete tehm. Some word processing programs allow you to select text and drag the selected text to another place in the document. To select the text, you may have to drag the mouse over the text you want to select.
Dragging is an important technique for using todays graphical user interfaces (GUIs). In fact, there are many other things you can drag besides icons. For example, you can drag the top of windows to reposition them, you can drag the scroll bar in open documents or Web pages to scroll through them, and you can drag messages to different folders in your mail program. Other programs, such as video games and image-editing programs use dragging to reposition items on the screen.
To drag an item, first move the cursor over the item you want to drag. Then click and hold down the left mouse button to grab the item. Move the mouse to position the item where you want it. Let go of the mouse button once you have moved the item to release it. This technique is known as a drag and drop.