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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

Smps fan mean?

Switch mode power supply (smps) converts 110-230 volts of alternating current to direct current that computer components need. The fan keeps the power supply cool.

Why is it important to give consideration to the printing process during the design phase?

For a successful design output it is important to give consideration to the printing process, it will involve in communicating with the printer if it is able to print your design in its current layout or not and also how much it will cost. Pre-press check list is vital as it gives flexibility to the designer in case the design as to be changed.
It is important to understand and take in to consideration the printing process when chosing what kind of image is needed, what medium should it be printed on with what kind of ink and color pallete and so on, in order to achieve the correct look for a client.

What does a PCB do on a circuit?

A PCB (Printed Circuit Board) is the board on which components are placed and soldered into position. It doesn't do anything in a circuit, merely the foundation on which a circuit can be created.

Do you have to power down the system before connecting a usb camera why or why not?

No. When you disconnect a device or peripheral from a PS/2 port and the computer it's on that can cause a spike and a short circuit damaging your computer. So, it's more dangerous if it is connected to a PS/2 port than in a USB port. E.g. It's like connecting a USB Flash drive.

Size of vacuum tubes?

Vacuum tubes have been built in sizes as small as the eraser on the end of your pencil to as big as a bus. It all depends on the purpose and power requirements. The typical vacuum tube used in household radios and TVs was half an inch to one inch in diameter and two to five inches tall.

How do you transfer a printed image onto a coffee cup?

http://www.qlt.com/store/merchant.mv?Screen=CTGY&Category_Code=400A&qts=google14&qtk=g14-4

the answer is that is easier to order the mugs themselves preprinted as they have to be special cup and requires special and costly equipment to make this all possible. I'm looking at the same thing and have found very good pricing on preprinted mugs.

What is PLPA dataset in mainframe?

pageable link pack area (PLPA)

An element of MVS/ESA virtual storage. This area contains supervisor call routines, access methods, and other read-only system programs along with read-only reenterable user programs selected by an installation to be shared among users of the system. Optional functions or devices selected by an installation during system generation add additional modules to the PLPA.

Types of LAN cables?

There are 3 main types:

- Straight Through

- Cross-over

- Rollover (less common)

and i guess maybe Fiber, because your question was so vague.

Distinguish between primary memory and auxiliary memory?

the main memory is the central storage unit of the computer system.

it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU.

main memory includes RAM and ROMs.

devices that provide backup storage are known as auxillary memory.

auxillary memory are relatively slow in comparision to the main memory.

auxillary memory includes flash memory,magntic disks and floppys.

main memory is located inside the CPU but auxillary memory is located out the CPU. the main memory is the central storage unit of the computer system.

it is relatively large and fast memory used 2 store the programs and data during the computer operation.main memory communicates directly with the CPU.

main memory includes RAM and ROMs.

devices that provide backup storage are known as auxillary memory.

auxillary memory are relatively slow in comparision to the main memory.

auxillary memory includes flash memory,magntic disks and floppys.

main memory is located inside the CPU but auxillary memory is located out the CPU.

Is there anyway to reset the BIOS password on a Toshiba 460CDT laptop if you have forgotten it?

The best method to reset a BIOS password depends on what BIOS the computer has. Common BIOS's include AMI, Award, IBM and Phoenix. Numerous other BIOS's do exist, but these are the most common.

Some BIOS's allow you to require a password be entered before the system will boot. Some BIOS's allow you to require a password to be entered before the BIOS setup may be accessed.

The general categories of solutions to reset a BIOS password are:

Using a Backdoor BIOS Password

Resetting the BIOS Password using Software

Resetting the BIOS Password using Hardware

Vendor Specific Solutions for resetting the BIOS Password

Can you connect any mini disc recorder to your computer or does it have to be specifically a Net MD?

yes you can using the usb and for steaming recording u can can use the line out either on the sound card or onboard audio There is also a firewire device desinged to run between a minidisc and your computer. Some minidisc recorders ive seen have them.

Who are the major vendors for mainframe computers?

The major vendors in the market right now are IBM (itself has 90% market share), Groupe Bull, Unisys, HP and Oracle (Sun Microsystems).

What does a catheter ablation interrupt?

The technique of catheter ablation (meaning tube-guided removal) is used to interrupt the abnormal contractions in the heart, allowing normal heart beating to resume.

Does a SCSI have the fastest throughput?

It used to, but no longer.

These days, for individual harddrives, SATAII and SATAIII (SATA3) are significantly better in performance.

However in terms of total throughput performance, SCSI can outperform even SATAII.

Here's a breakdown of common interfaces and their bandwidth:

ATA/100 (IDE): 100 MB/s

Ultra ATA/133 (IDE): 133 MB/s

SATA: 150 MB/s

SATAII: 300 MB/s

SATAIII: 600 MB/s

Ultra3 SCSI: 160 MB/s

Ultra-320 SCSI: 320 MB/s

Ultra-640 SCSI: 640 MB/s

SAS (Serially Attached SCSI): 300 MB/s

USB1.0: 1.5 MB/s

USB2.0: 60 MB/s

Firewire: 50 MB/s

Firewire800: 400 MB/s

100mbit Ethernet: 12.5 MB/s

Gigabit ethernet: 125 MB/s

Average Cable Internet: 1 MB/s

It should be noted, however, that the world's fastest harddrives do not max out most of these interfaces.

An Atlas 3k (15,000 RPM) drive uses SAS, Ultra-320 and Ultra-640 interfaces, but tops out at 145 MB/s average with 202 MB/s peak.

As such, whether to use SCSI or SATA is of no importance to standard users. Only servers and mainframes typically need to worry.

That, combined with the MUCH higher cost of SCSI drives and SCSI interface cards (and cables) has left SCSI unpopular and largely obsolete.

Is firewire card still usable today 2008?

Yes.

While not as popular as USB, firewire is still definitely used today.

Today, firewire is the dominant way of transferring digital video from a camera to a PC.

Update: Yes if you have a free compatible expansion slot (e.g. PCI), your Firewire or 1394 card will still be usable. I recently added a my old PCI Firewire card to one of the new machines. These are used primarily for Video capture/transfer or even for some external HDD or DVD drives which have a Firewire interface. - Neeraj Sharma

How old is the president of Libya?

There is no president of Libya. It is being decided at present.

What is MB and GB in computer?

MB (megaByte) and GB (gigaByte) are measurements of storage in computers. Typically used to measure Memory (like Random Access Memory aka RAM) or storage (Floppy disks, hard drives, thumb drives, etc)

A bit is the smallest unit of storage in a computer. It can be a 1 or a 0.

A byte is a grouping of 8 bits. This is the most common size worked with. A single typewritten character is stored in a byte (in the English language.)

Just like meters, the prefixes kilo, mega, and giga can be added to bytes to define larger grouping of bytes. However where in the metric system each prefix is 1000 times larger than the last prefix, for bytes each prefix is 1024 times larger than the last prefix. (Note: Most hard drive manufactures use 1000 between prefixes since it makes their hard drives seem bigger.)

1 GB = 1,024 MB = 1,048,576 KB = 1,073,741,824 B1 MB = 1,024 KB = 1,048,576 B

1 KB = 1,024 B