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History of an operating system essay
History of an operating system essay
Development of operating systems history
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Q:1What is the difference between cache memory and RAM?(5 lines only)
Ans: RAM is abreviated as Random Access Memory, is the main memory of computer in which the running programe is stored temporarily , it losts its memory when computer is turned off. While Cache memory is a special memory used to decrease the average time taken by RAM to access the programe. Cache memory is smaller memory as compared to RAM but it is much faster then RAM.
Q:2There are three types of printers what are they? Give examples of each type.
Ans: There are three types of printers
1:)Dot Matrix
2:)Ink-Jet
3:)Laser
Q:3 What is the difference between a CPU and a GPU? •
Ans: CPU or central processing unit is where all the programes exists. CPU act like a Head of computer
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(5 lines only) •
Ans: It is basically aellectrically erasable programable read only memory. in flash drive electrical pus changes the state of mini circuits to on or off. usb flash drive is used to read and permanently store data without electrical power . inusb flash drive data is stored in parallel all bits at once or in series one bit at a time . ausb with no data have all bits with 0 state ,when we store or write data on usb we actually chang the state of bits .
Q:7 Define DVD and Blu Ray Disk and state difference between the two. (5 lines only) •
Ans: DVD is called digital verstile data storage and Blu-ray is a digital optical disc data stoarage. DVD have five to ten times more storage capacity as compared to CD and same as this blu-ray has much more capacity then DVD and is more liable then dvd with more advance performance . In blu-ray disc we use a Blue laser instead of red and a improved lens which allows more smaller focous and reaveals more details.
Q:8What is HDMI Port? Explain its advantages over VGA port. (5 lines only)
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System software Microsoft Windows Linux ,Unix ,Mac OSX, DOS, BIOS Software
Q:13Write down names of famous software companies in Pakistan.
Ans: NetSol Technologies, Ovex Technologies, TRG Tech, System Pvt Ltd, kalsoft, Elixir Tech Ibds, Macrosoft Pakistan, Mindstorm Studios, Xavor Corporation, Techlogix
Q:14Write down names of some of largest software vendors all over the world?
Ans:Microsoft, Oracle,SAP,Symantec ,VMware, Fiserv, CA technologies,Intuit, salesforce.com, Amadeus IT Group.
Q:15What are different versions of DOS? Name them no details are required
Ans:Dos 1.0, Dos1.1, Dos1.25 DOs2.0 Dos2.1 Dos3.0 Dos3.1 Dos3.2 Dos3.3 Dos4.0 Dos4.01 Dos5.0 Dos5.0a Dos6.0 Dos6.1 Dos6.2 Dos6.21 Dos6.22 Dos7.0
Q:16Name all of the flavors of Linux state difference between them? •
Ans: ubuntu ,fedora,linux mint, puppy linux, tinycore, MEPIS LINUX, ZORIN OS Ubuntu is the most popular linux distribution, Fedora is the fourth most popular. Fedora is based on Red Hat Linux while Ubuntu is based on Debian.
Q:17 Write down names of five packaged application software? •
Ans:MACINTOSH, Windows, Android, Ios, CynagenMOD
Q:18Compare UNIX, Linux and windows in form of table, the table should contain five differences.
Ans:
Linux Unix
The purpose of this document is to compare and contrast three different Linux vendors in regards to their specific server and workstation OS products they offer in the workplace. In addition, I will discuss the price for each vendor, specifications, performance, and reliability. The three vendors I would like to discuss are Arch Linux, Red Hat Enterprise, and Ubuntu. Linux is an operating system that has several distros to choose from. Linux allows the user more control of the system and greater flexibility. As an open operating system, Linux is developed collaboratively, meaning no one company is solely responsible for its development or ongoing support. Companies participating in the Linux economy share research and development costs with
The Linux operating system is the catchall term for the dozens of software stacks built around the free and open source Linux kernel. Clumped into distribution...
Since 1999 the growth of spending on DVD purchases and rentals has been incredible. According to Alexander & Associates, “Rapidly growing consumer activity and spending has built this industry into a major market phenomenon. The DVD format for enjoying pre-recorded entertainment at home is extraordinarily popular and consumers are changing their behavior to accommodate it.”
Everywhere you look now days, you see or interact with CDs or DVDs; whether it is in the car, at work, or at home for pleasure, you deal with these modern marvels. Whatever the use, CD has become a reliable medium in which to distribute information, in a reliable way. The cost of a CD is very inexpensive, making it a popular choice by companies trying to advertise, or teach you about something. American On Line (AOL) is one example of companies who have chose this reliable source for communication. CD is the abbreviation for compact disk; DVD is the abbreviation for digital video disk or digital versatile disk. The difference between the two is the CD is audio, and the DVD is audio and visual. The objective of this paper is to help you to understand the physics surrounding the CD and DVD. The main focus of this paper is to inform the reader of all the things that take place when you watch a movie on a DVD player, starting with the CD itself. The laser reads the CD and converts it to the final product of what we see and hear.
As the internet is becoming faster and faster, an operating system (OS) is needed to manage the data in computers. An Operating system can be considered to be a set of programed codes that are created to control hardware such as computers. In 1985 Windows was established as an operating system and a year earlier Mac OS was established, and they have dominated the market of the computer programs since that time. Although, many companies have provided other operating systems, most users still prefer Mac as the most secured system and windows as it provides more multiple functions. This essay will demonstrate the differences between windows
This paper discusses about the historical event that takes place within the operating system and their recent development and progression. Therefore it is essential to have a clear comprehension on the operating system that is still accessible to recognize its fundamental strengths and weaknesses. Hence, it is imperative to evaluate the operating system we are reviewing to distinguish between them. Meanwhile, this paper also inspects on the difference between the open source and proprietary operating system. The discussion is mainly about the feature and application used in different operating system.
It is part of the main memory to the computer. RAM carries data and programs that are used by your computer at a given time. As the name suggests, any memory location can be accessed randomly arrival time is the same for each and every place any Volatile Memory and Memory storage of information as long as it is providing power. It is lost when the contents of the power supplies.
Haddad, I. & Petersen, R. (2004). Getting Started with Red Hat Linux. Retrieved from http://linux.sys-con.com/node/45264
The central unit is the basic part of the computer and includes all the main computer parts. It is the heart of the computer system. It is responsible for executing, or running the software. The software programs are translated into a series of codes made up of 1s to 0s that the CPU can understand. Every code means a certain operation should take place.
Virtual memory is an old concept. Before computers utilized cache, they used virtual memory. Initially, virtual memory was introduced not only to extend primary memory, but also to make such an extension as easy as possible for programmers to use. Memory management is a complex interrelationship between processor hardware and operating system software. For virtual memory to work, a system needs to employ some sort of paging or segmentation scheme, or a combination of the two. Nearly all implementations of virtual memory divide a virtual address space into pages, which are blocks of contiguous virtual memory addresses. On the other hand, some systems use segmentation instead of paging. Segmentation divides virtual address spaces into variable-length segments. Segmentation and paging can be used together by dividing each segment into pages.
Encoding is the process of placing information into memory. Storage is the process of retaining information in memory. Getting information out of memory is called retrieval. Out of the three, the most important is Encoding, because you must pay attention to the information that you want to place into your memory. It is the starting point, although there are three levels known within this beginning step.
both release new operating systems, but their software and hardware make up some of the most
A computer is a combination of several parts. These parts are Random Access Memory (RAM), a Central Processing
In designing a computer system, architects consider five major elements that make up the system's hardware: the arithmetic/logic unit, control unit, memory, input, and output. The arithmetic/logic unit performs arithmetic and compares numerical values. The control unit directs the operation of the computer by taking the user instructions and transforming them into electrical signals that the computer's circuitry can understand. The combination of the arithmetic/logic unit and the control unit is called the central processing unit (CPU). The memory stores instructions and data.
CPU Stands for "Central Processing Unit." The CPU is the primary component of a computer that processes instructions. It runs the operating system and applications, constantly receiving input from the user or active software