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Computers
This category includes questions and answers about computers and everything related to computers.
48,002 Questions
How do you write a program in 8085?
Either in Assembly or in some high level language/the hex-code (for the mnemonics) that the microprocessor 8085 generally understands.
What computer program appears useful but is malicious?
This can be known by many names. "Malware" is generally used to describe any software that damages your computer. A "Trojan horse" is a specific type of malware which poses as a useful application, but actually performs malicious acts once installed.
What is it important to know the amount of ram in your computer?
RAM or Random Access Memory, is the memory that your computer system uses to store the data of all open programs and applications. When the systems boots up, the operating system is loaded into RAM, so a computer can not function without it.
Explain about computer with a neat block diagram?
1) Accept the data and instructions from the outside world.
2) Convert it to a form that the computer can understand.
3) Supply the converted data to the computer system for further processing.
Storage Unit:The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed. It preserves the intermediate and final results before these are sent to the output devices. It also saves the data for the later use.
Types of Storage Devices:
1. Primary Storage:
1. Stores and provides very fast.
2. This memory is generally used to hold the program being currently executed in the computer, the data being received from the input unit, the intermediate and final results of the program.
3. The primary memory is temporary in nature. The data is lost, when the computer is switched off.
4. In order to store the data permanently, the data has to be transferred to the secondary memory. The cost of the primary storage is more compared to the secondary storage.
2. Secondary Storage:1. It stores several programs, documents, data bases etc.
2. The programs that run on the computer are first transferred to the primary memory before it is actually run.
3. Whenever the results are saved, again they get stored in the secondary memory.
4. The secondary memory is slower and cheaper than the primary memory. Some of the commonly used secondary memory devices are Hard disk, CD, etc.
Memory Size:
All digital computers use the binary system, i.e. 0s and 1s. Each character or a number is represented by an 8 bit code. The set of 8 bits is called a byte. A Character occupies 1 byte space. A numeric occupies 2 byte space. Byte is the space occupied in the memory. The size of the primary storage is specified in KB (Kilobytes) or MB (Megabyte). One KB is equal to 1024 bytes and one MB is equal to 1000KB. The size of the primary storage in a typical PC usually starts at 16MB. PCs having 32 MB, 48MB, 128 MB, 256MB memory are quite common.
Arithmetic Logical Unit:All calculations are performed in the Arithmetic Logic Unit (ALU) of the computer. It also does comparison and takes decision. The ALU can perform basic operations such as addition, subtraction, multiplication, division, etc and does logic operations viz >, <, = etc.
Whenever calculations are required, the control unit transfers the data from storage unit to ALU once the computations are done, the results are transferred to the storage unit by the control unit and then it is send to the output unit for displaying results.
Output Unit:The output unit of a computer provides the information and results of a computation to outside world. Printers, Visual Display Unit (VDU) are the commonly used output devices. Other commonly used output devices are floppy disk drive, hard disk drive, and magnetic tape drive.
Control Unit:
It controls all other units in the computer. The control unit instructs the input unit, where to store the data after receiving it from the user. It controls the flow of data and instructions from the storage unit to ALU. It also controls the flow of results from the ALU to the storage unit. The control unit is generally referred as the central nervous system of the computer that control and synchronizes its working.
Central Processing Unit:The control unit and ALU of the computer are together known as the Central Processing Unit (CPU). The CPU is like brain performs the following functions:
1) It performs all calculations.
2) It takes all decisions.
3) It controls all units of the computer.
A PC may have CPU-IC such as Intel 8088, 80286, 80386, 80486, Celeron, Pentium, Pentium Pro, Pentium II, Pentium III, Pentium IV, Dual Core, and AMD etc.
How many gig in 100000 megabytes?
10000000 Bytes = 10000000/1024 KB = 10000000/(1024 x 1024) MB = 9.53674316 MB
What are the advantages and disadvantages of using a wholesaler?
There are many advantages to buying from a wholesaler instead of buying from a retail outlet, but the most notable reasons are that you can usually buy items at or lower than the suggested retail price, or buy multiple units of items at a significantly cheaper prices.
A computer is used to input information within a document, play games and to receive information from the Internet.
What is the purpose of the jumpdrive?
The purpose of a jumpdrive is to carry around a small portion of your computer's data right in your hands or your pocket. They are very helpful when traveling, and you can plug it into a hotel's computer (or any other computer with a USB connection).
They usually come in these sizes: 250 MB, 1 GB, 2 GB, 4 GB, 8 GB, 16 GB, and 24 GB--although you can get them in other sizes besides these.
Jumpdrives can hold anything from videos to music to documents or even voice recordings.
A general rule is that if you can save it to a hard drive, then you can usually save it to a jumpdrive.
Where to find a certified repair computer center in Chicago?
Click A Nerd - Computer Repair.
(773) 877-3359
5022 S Lake Shore Dr. Chicago. IL
Chicago Area Computer Repair and IT Consulting
(773) 710-2665
150 N Michigan Ave, Ste 1970e, Chicago, IL
Chicago Community Computer Service
(773) 498-4998
8251 S Kedzie Ave, Chicago, IL
What is a website that you say something and your computer will type it?
Well there is some websites you can go on : Chatbot, Cleverbot and some more. Hope you have a good time talking. :)
If you're referring to voice commands within an operating system, that's something which needs to be installed on your system, not a website.
How were computers used in 1960s?
=The number of computers in use and their size and speed expanded rapidly in the 1960s escalating the demand for software to support the numerous tasks for which computers were now being used. This provided enormous opportunities for entrepreneurs to create new companies to serve this expanding market. Some of the companies founded in the early 1960s were Informatics, Electronic Data Systems (EDS) and California Analysis Center, Inc. (CACI) in 1962, Management Science America (MSA) in 1963, and Keane, Inc. in 1965. ==By 1965, there were an estimated 45 major software contractors in the U.S, some employing more than a hundred programmers and with annual revenues as much as $100 million. In addition, there were hundreds of small firms, typically with just a few programmers. In 1967, it was estimated that there were 2,800 software services firms in the U.S. By the end of the 1960s, a number of these firms, such as Informatics, ADR, and CSC, were publicly held.==By the early 1960s, a customer of any of the major hardware manufacturers could expect to have access to a library of software which was included (bundled) in the cost of the computer. This software included the computer's operating system, of course, but also utility programs (such as sort programs), compilers for languages such as COBOL and FORTRAN, and a growing library of programs written to handle specific applications. IBM, for example, maintained a library of application programs written by its programmers to meet the needs of specific customers but which were then made available at no cost to other IBM customers.==Computer users had the choice of getting the software they needed from their hardware vendor or having it custom-built for their needs by their own programmers or by a contract programming firm. Many of the executives in the software industry didn't believe that there would ever be a viable market for software products--it was too difficult to compete against free software from the hardware manufacturers. ==But early in the 1960s, some contract programming firms began to see opportunities, when there was no comparable product available from the hardware vendor, to sell programs they had written to more than one customer. For example, CACI began selling SIMSCRIPT, a simulation language, in 1962, and ADPAC Corporation made several sales of its ADPAC compiler in 1964 to customers who had seen it used by ADPAC programmers and wanted it available to their own programmers.==In 1965, ADR released AUTOFLOW, a program which automatically produced program flowcharts by reading the program source code, and which ultimately was sold to thousands of customers. And in November, 1967, Informatics released MARK IV, a generalized file management and report generation program, which surpassed $1 million in revenues within 12 months after its formal announcement.==ADR and Informatics, both very successful contract programming firms, were the first companies to set up the kind of organizations needed to market and support software products and therefore to become true software product companies.==In the late 1960s, the concept of software as a product began to take hold despite the environment where customers were used to getting their software for free. In January, 1967, International Computer Programs, Inc. (ICP) published the first issue of its ICP Quarterly, a catalog of software programs that were available for sale. Forty-nine programs were offered in that first issue but by the end of 1969, each issue of the ICP Quarterly listed hundreds of software products (often called "software packages").==Among the numerous firms founded in the late 1960s were Phillip Hankins, Inc. (PHI) and Information Science, Inc. (InSci) in 1965, AGS Computer Systems, turnkey systems, inc. (TSI), and Boole and Babbage in 1967, Cincom, Cullinane Corporation and Atlantic Software in 1968, and Pansophic Systems, Inc., McCormack & Dodge, Dylakor and Syncsort in 1969. ==On June 30, 1969, IBM announced that, effective January 1, 1970, it would begin to unbundle (charge separately for) some of its software effectively ending the expectation of its customers that they would always be able to get all the software they needed from IBM for free.=
Are all physical parts of a computer called software?
No. Physical parts of a computer are called Hardware.They are hard and you can touch them.
There are a lot of things that are called software though, like word processing, bugeting, presentation, photo editing, 3D rendering, and animation programes. Even video games are software.
Software is instructions for the computer, held as a binary code within the machine. You cannot see it or touch it, you only see it's effects. This is why it is called 'soft'. It forms an important part of a computer because it cannot function without it and is 'wares' in as much as you can buy, sell and trade it, as if it were physical.
What is the difference in Ethernet crossover and patch network?
tpatch cable is also known as straight cable and mostly connected same devices or nodes. but on the other side cross cable is just different then patch and used to connect different devices.
Hem Gurjar
What is the benefit of having Windows Live on a computer?
The benefits of Windows Live includes having a web-based browser and internet service provider integrated into one program. The biggest benefit is the potential for Windows Live to work across multiple platforms and different kinds of media.
1) it can be read by almost everybody.
2) it has variable compression so the files can be smaller (but you loose detail).
Are notebook computers the same as laptop computers?
Yeah a computer and a labtop both have a notebook installed
Why is the hard drive of a computer sealed in an airtight case?
Hard drives use what is called as the disk platter and a head for storing and reading information respectively. The platter are circular disks which hold data and the head read the data off these platters. The head is floating very close to the platters reading and writing data (using magnetism). sometimes,.the head may touch the platter, taking off the aluminum surface coat which actually stored the data, causing data corruption. Also the head needs to freely float without any jerks or air circulation movements. Thus, the hard drive is sealed internally in a air tight compartment. It also protects the platters from dusk, moisture and smoke.
It must be noted that not all hard disks work like this.
What is computer circuitry that temporarily holds data waiting to processed known as?
The Ram - Random Access Memory temporarily holds programs and data while the computer is on and allows the computer to access that information randomly.
Is it computer classified as gadgets?
computer can be classified as gadget.But mainly gadgets are the small or portable computers.Computer can be classified as a machine.
If you want to make a video, you will need a camera, and a laptop/computer to load it onto.
Next you will need your self and friends [friends optional].
Now with a video camera, you click record and go!
Then you load it onto a computer, and download windows moviemaker, then select the scenes, put it all together and there you go!
Remember, when recording a video make it as funny/interesting as possible.
Small pen-like device that uses pressure instead of ink?
A small pen-like device that uses pressure instead of ink is called a stylus. A stylus is used to operate touchscreen devices such as a Nintendo DS or an iPad.
What are some free avatar games?
Some good online avatar based games are Zwinky, Fantage and Second Life. Another good online avatar based game is Habbo.
Generally, by exchanging data between participating devices. Each networked device has to be equipped with a network adapter and provided with physical link (by wire, optic fiber or radio) and given with an ID unique to the network which allows to address a specific device.
What is the unit that control and coordinates the entire computer system?
system board i.e also known as motherboard.
