Hardware part (C) Solid-State Drives

A relatively new component becoming more common in some personal computers is the solid-state drive (SSD). The SSD performs the same function as a hard disk: long-term storage. Instead of spinning disks, the SSD uses flash memory, which is much faster Solid-state drives are currently quite a bit more expensive than hard disks. Technical Data used in the field explained in it courses in Rawalpindi.

However, the use of flash memory instead of disks makes them much lighter and faster than hard disks. SSDs are primarily utilized in portable computers, making them lighter and more efficient. Some computers combine the two storage technologies, using the SSD for the most accessed data (such as the operating system) while using the hard disk for data that is accessed less frequently. As with any technology, Moore’s Law is driving up capacity and speed and lowering prices of solid-state drives, which will allow them to proliferate in the years to come. Some more details of it courses in Rawalpindi are as under. 

Removable Media:

Besides fixed storage components, removable storage media are also used in most personal computers. Removable media allows you to take your data with you. And just as with all other digital technologies, these media have gotten smaller and more powerful as the years have gone by. Early computers used floppy disks, which could be inserted into a disk drive in the computer. Data was stored on a magnetic disk inside an enclosure.

Around the turn of the century, a new portable storage technology was being developed: the USB flash drive (more about the USB port later in the chapter). This device attaches to the universal serial bus (USB) connector, which became standard on all personal computers beginning in the late 1990s. As with all other storage media, flash drive storage capacity has skyrocketed over the years, from initial capacities of eight megabytes to current capacities of 64 gigabytes and still growing.

Network Connection:

When personal computers were first developed, they were stand-alone units, which meant that data was brought into the computer or removed from the computer via removable media, such as the floppy disk. Beginning in the mid-1980s, however, organizations began to see the value in connecting computers together via a digital network. Because of this, personal computers needed the ability to connect to these networks. Initially, this was done by adding an expansion card to the computer that enabled the network connection, but by the mid-1990s, a network port was standard on most personal computers. technologies began to dominate in the early 2000s, many personal computers also began including wireless networking capabilities. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join it courses in Rawalpindi.

Hardware (part b) motherboard

The motherboard is the main circuit board on the computer. The CPU, memory, and storage components, among other things, all connect into the motherboard. Technical about this field explained in it courses in Rawalpindi.

Motherboards come in different shapes and sizes, depending upon how compact or expandable the computer is designed to be. Most modern motherboards have many integrated components, such as video and sound processing, which used to require separate components. The motherboard provides much of the bus of the computer (the term bus refers to the electrical connection between different computer components). The bus is an important determiner of the computer’s speed: the combination of how fast the bus can transfer data and the number of data bits that can be moved at one time determine the speed. Some more details about this field of it courses in rawalpindi are as under.

Random-Access Memory:

When a computer starts up, it begins to load information from the hard disk into its working memory. This working memory, called random-access memory (RAM), can transfer data much faster than the  ard disk. Any program that you are running on the computer is loaded into RAM for processing. In order for  a computer to work effectively, some minimal amount of RAM must be installed. In most cases, adding more RAM will allow the computer to run faster. Another characteristic of RAM is that it is “volatile.” This means that it can store data as long as it is receiving power; when the computer is turned off, any data stored in RAM is lost.

RAM is generally installed in a personal computer through the use of a dual-inline memory module (DIMM). The type of DIMM accepted into a computer is dependent upon the motherboard. As described by Moore’s Law, the amount of memory and speeds of DIMMs have increased dramatically over the years.

Hard Disk:

While the RAM is used as working memory, the computer also needs a place to store data for the longer term. Most of today’s personal computers use a hard disk for long-term data storage. A hard disk is where data is stored when the computer is turned off and where it is retrieved from when the computer is turned on. Why is it called a hard disk? A hard disk consists of a stack of disks inside a hard metal case. A floppy disk (discussed below) was a removable disk that, in some cases at least, was flexible, or “floppy.” TSK is the best institute in Rawalpindi Islamabad who wants to join it courses in rawalpindi.

Tour of a PC

All PCs consist of the same basic components: a CPU, memory, PCB, memory and input / output devices. It also turns out that almost every digital device uses the same set of components, so that the personal computer examination give us insight into the structure of a variety of digital devices. So let a "tour" take from a personal computer and see what makes them function. Technical Data used in the field explained in it courses in Rawalpindi.

Process data:

The CPU As already mentioned, most computer devices have a similar architecture. The core of this architecture is the central processing unit or CPU. The CPU can be thought of as the "brain" of the device. The CPU executes the instructions to make it soak through the software and provides the results sent to it. The earliest CPUs were large boards with limited functionality. Today is a CPU is usually on a chip and can perform a wide variety of functions. There are two primary manufacturers of CPUs for PCs: Intel and Advanced Micro Devices (AMD). Some more details of it courses in rawalpindi are as under.

The speed ( "clock time") of a CPU is measured in Hertz. One hertz is defined as one cycle per second. Using the binary prefixes mentioned above, we can see that one kilohertz (abbreviated kHz) is a thousand cycles per second, one megahertz (MHz) is one million cycles per second, and one gigahertz (GHz) is one billion cycles per second. The computing power of the CPU is at an astonishing rate increase (see box on Moore's Law). In addition to a faster cycle time many CPU chips now contain multiple processors per chip. These chips, known as dual-core (two processors) or quad-core (four processors) increase, providing the computing power of a computer with the ability to have multiple CPUs.

Sidebar: Moore's Law:

We all know that computer faster every year. Many times we are not sure if we want today to buy the model of smartphone, tablet or PC, because next week it is not the most advanced more. Gordon Moore, one of the founders of Intel, recognized this phenomenon in 1965, noting that the microprocessor transistor counts every year.1 had doubled His insight eventually evolved into Moore's Law, which states that the number of transistors on a chip every two years to double. This was generalized in the concept that computing power will double every two years for the same price. Another way to look at this is to think, that the price for the same computing power will be cut in half every two years. Although many have predicted its end, Moore's Law has held true for over forty years (see figure below). TSK Training for Skills and Knowledge is the best institute in Rawalpindi who wants to join it courses in rawalpindi.

Hardware

Hardware, software, data, people and process: As we learned in the first chapter, an information system of five components is composed. The physical parts of the device computing - ones that you can actually touch - are referred to as hardware. In this chapter we will take a look at this component of information systems, to learn a little about how it works, and around him to discuss some of the current trends. Technical Data  explained in it courses in Rawalpindi.

As mentioned above, computer hardware includes digital devices that can touch physically. This includes devices such as the following: Some more information about this field  it courses in Rawalpindi are as under.

• Desktop computers
• Laptop computer
• Mobile phones
• tablet computer
• E-Reader
• Storage devices such as flash drives
• Input devices such as keyboards, mice and scanners
• output devices such as printers and speakers.

In addition to these more traditional computer hardware devices that were once many elements not considered digital devices now becoming even computerized. can be used as computer hardware extension Digital technologies are now being integrated into many everyday objects, so that the days of a device is marked categorically. Examples of these types of digital devices include cars, refrigerators and even soft drink dispenser. In this chapter we will examine digital devices, starting with the definition of what we mean by the term itself.

Digital Devices:

A digital device processes electronic signals representing either one ( "on") or a zero ( "off"). The ON state is represented by the presence of an electronic signal; the OFF state is represented by the absence of an electronic signal. Each one or zero is called a bit (a contraction of binary digit); a group of eight bits is a byte. The first PCs could process 8 bits of data at a time; can handle modern PCs now 64 bits of data at a time, which is where the term 64-bit processor comes. TSK Training for Skills and Knowledge is the best institute in Rawalpindi  for  Pakistani Students  wants to join it courses in rawalpindi

Web 2.0

As the world recovered from the dot-com bust, the use of technology in business at breakneck speed began to develop. Website was interactive; rather than just a website to find out, to visit a store and buy the products wanted, his customers will be able to customize their experience and interact with the company. This new kind of interactive site, where you do not know how to create a Web page or do a program to provide information online, known as Web 2.0 is known. Technical Data used in the field explained in it courses in Rawalpindi.

Web 2.0 is by blogging, social networking and interactive comments are available on many websites exemplified. This new Web 2.0 world where online interaction was expected had a great impact on many companies and even entire industries. Some industries, such as bookstores, found to a niche status relegated. Some more details of it courses in Rawalpindi are as under.

Others, such as video rental chains and travel agencies, just started out of business, as they have been replaced by online technologies. This process technology will replace an intermediary in a transaction called disintermediation. As the world became more connected, new questions arose on. Should access to the Internet a right to be considered? Can I copy a song that I downloaded from the Internet? How can I keep the information I have provided privately on a website? What information is acceptable to collect from children? Technology moves so fast that the policy did not have enough to adopt time, appropriate legislation, which for a Wild West-type atmosphere. Ethical issues information systems around covered.

The post-PC world:
After thirty years, since the device primary computing in most companies used the sales of the PC are now take to decline as sales of tablets and smartphones from the beginning. Just as the mainframe before it continues to the PC to play a central role in the economy, but not the primary way that people interact and do business. The limited memory and processing power of these devices is being offset by a move to "cloud" computing, which allows for the storage, sharing and backup of information on a large scale.TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join it courses in Rawalpindi.