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Computer Hardware
Computer hardware is a general term used to refer to all the physical parts of a computer. Internal hardware devices include hard drives and motherboards, while external hardware devices include monitors, mice, keyboards, and printers.
11,849 Questions
How do you discharge static electricity?
If you touch the charged item to the ground, the charge will go into the ground. This is because static electricity is caused by either having too many or not enough elecrons. When toughed to the ground, the item will either get rid of the electrons or pick more up, making it neutral.
Which 3 parts of a computer gives output?
keys,mouse, camera, mic, trackpad, scanner etc, anything that will show up on your screen or come thorough your speakers really
A person who takes the risk of a new business enterprise?
This kind of person can be described as an entrepreneur.
What are the function keys for on the computer?
The function keys can have different functions depending on what program you have open. Pressing the f1 key while using a graphics program might for example bring up a menu on the screen.
If for example you are in the properties window for a printer , you can highlight a tab then hit the f1 key. It will bring up a litttle box explaining the use of that tab.
Some programs dont use function keys. In general the instructions for using a computer program should tell you what if any function keys can be used.
What is the advantage of using a disk controller to control the hard disk?
The use of a separate disk controller frees the CPU to perform other tasks. In particular, the disk controller can manage DMA transfers, which otherwise would have to be done by the CPU. The disk controller also manages the movement of the disk head and reading or writing of the data on the disk. Again, without the disk controller, the CPU would be forced to perform these operations.
What stores data and programs while you are using them?
The computer's Random Access Memory (RAM) temporarily stores data and programs while your computer is on.
What forces act when a computer operates?
From strongest to weakest the four forces are:
- strong nuclear force - has no effect on the operation of a computer, except that it holds the atomic nuclei together
- weak nuclear force - has no effect on the operation of a computer
- electromagnetic force - responsible for everything the computer does, including allowing your fingers to mechanically press keys on the keyboard and the friction that prevents it from sliding around
- gravitational force - has no effect on the operation of a computer, except to pull it down onto your desk, table, floor, or lap
Why ram called random access memory?
When the Semiconductor technology not in existence there was a usage of magnetic tapes and magnetic drums which were the Sequential access means If you currently at the position of words which is starts from 'A' so if you need to look up the words started from 'Z' then you've to go through all alphabets means b,c,d........y then you'll get your position at 'Z'. It's similar to Audio or Video cassette.....
But the Ram is Random Access means "The ability of a computer to find and go directly to a particular storage location without having to search sequentially from the beginning location"
The human equivalent of random access would be the ability to find a desired address in an address book without having to proceed sequentially through all the addresses.
What is the default IO address for the primary IDE controller?
3F0 - 3F7Primary floppy disk drive controller. Primary IDE controller (slave drive) (3F6-3F7h)
Is there a difference between burning an iso to a disk and extracting it first then just copying?
Yes there is. The major advantage of an ISO is that burning it as an image preserves the bootloader, where extracting and burning the contents does not. The bootloader needs to go on a specific part of the CD/DVD/USB drive for it to be bootable. Just burning the contents does not do this.
ISO also makes a checksum of the entire ISO instead of each file it contains. That can be used to make sure that the download happened without error.
Memory cache is referred to as SRAM?
Yes it is true that memory caching is a method used to store data or programs in SRAM for quick retrieval. The North Bridge is the faster end of the hub that contains the graphics and memory controller.
A gateway is a network point that acts as an entrance to another network. On the Internet, a node or stopping point can be either a gateway node or a host (end-point) node. Both the computers of Internet users and the computers that serve pages to users are host nodes. The computers that control traffic within your company's network or at your local Internet service provider are gateway nodes.
Answer:
A gateway is a network point that acts as an entrance to another network. On the Internet, a node or stopping point can be either a gateway node or a host (end-point) node. Both the computers of Internet users and the computers that serve pages to users are host nodes. The computers that control traffic within your company's network or at your local Internet service provider (ISP) are gateway nodes.
In the network for an enterprise, a computer server acting as a gateway node is often also acting as a proxy server and a firewall server. A gateway is often associated with both a router, which knows where to direct a given packet of data that arrives at the gateway, and a switch, which furnishes the actual path in and out of the gateway for a given packet--------------------------------------------------------------------------------------------------------------------------------------
ANSWER
Gateway is used between two dissimilar LAN s.A gateway is required to convert Data packets from one protocol format to another Protocol format,as it connects two dissimilar networks.
Router and Gateway both are sometimes used interchangeably but the difference is that Gateway operate on 7th layer of the OSI Model and the Router works on the 3rd layer of the OSI model.The OSI Layer consists of
- Physical,
- Data Link,
- Network,(performs establishment of connection between networks and the Routing and selecting best path)
- Transport,
- Session,
- Presentation and
- Application Layer. (Provides semantic exchange of data between application in an open system)
What allows you to insert and remove devices while the computer is running?
Plug & Play devices can be inserted/removed while Computer is running.
What is a memory cell in digital electronics?
A memory cell is an individual part of memory, usually just a single bit. A DRAM "cell" is composed of a transistor and a capacitor, with memory refresh used to keep the charged capacitors charged and the drained ones drained until the values change. A SRAM cell is comprised of a transistor latch gate using 4-6 transistors. SRAM memory takes more power but does not need refreshed.
This is usually when your backup battery has died. Inside the computer there is (basically) a watch battery that stores information like time/date when the computer is turned off. If it doesn't get any power, it can't remember or update with the internal clock.
How do you download free Vishnu Sahasranamam?
Shripuram.org provides free Lalitha Sahasranamam that can be downloaded.
For direct link please see the Related Links section.
What is the ISA expansion slot?
ISA is the precursor to PCI. Standing for "Industry Standard Architecture" It was common from the early 1980s to the mid 1990s. ISA was a typically inelegant solution for the time, and required one to know exactly what one was doing- PnP was rare, even for so called "ISA PnP" peripherals. In the end, the combination of flexibility, ease of use, and greater capability allowed PCI to supersede ISA.
There are 3 DS3's in an OC3.
Generally an OC3 or higher capacity circuit will be used to deliver a DS3 due to distance limitations of the DS3.
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Does The ALU manages all activities inside the processor?
ALU is primarily responsible for arithmetic and logical calculations and is not responsible for all the activities inside the processor. e.g. many processors have inbuilt memory controllers which interface with memory or bus drivers, bus arbiters all of which will be performing autonomous functions and will be interfacing with various sub modules through data or control signals. ------- A processor contains three basic components; an input/output unit, a control unit, and ALU's. The control unit manages all activities inside the processor itself. -----
What is the function of the USB ports in a computer?
Universal Serial Bus, is a device system designed for the accessories of the computer system, it allows you to hot swap any devices that is designed for the port. Some of these devices include: Keyboard, Mouse, Game Controllers, Lights, Fans and a slew of other things.
Users and applcation depend on what to relate to all hardware components?
The Operating System (OS) connects the user, applications, and hardware together.
Internal parts of a CPU and its function?
- Arithmetic Logic Unit - performs arithmetic on numbers, logic functions, and manipulates symbols and strings of symbols.
- Control Unit - fetches and decodes instructions, controls operation of other units to execute the decoded instructions.
- Memory Unit - stores instructions, numbers, logical data, symbols, etc.
- Input/Output Unit(s) - moves instructions, numbers, logical data, symbols, etc. to and from the computer and devices outside it.
What is the difference between 4400mAh 48 Wh and 6600mAh 71 Wh on a laptop battery?
The difference is an increased battery capacity (hence longer runtime). A batteries capacity is measured in Ah (or mAh) and is the product (ie multiplied together) of the current being drawn and the time the current is drawn for. Thus a 4800 mAh battery can supply a 2A current for 2.4 hours (ie 4800/2000) while a 4400 mAh battery can only supply a 2A current for 2.2 hours.
