Have lost the cable that connects to computer. Besides the power, there are 2 sockets on the back. Tried a cable from the square socket to USB but computer doesn't recognise that a device is connected. There is also a round socket - is that the right output and what kind of plug is needed?

The cable you use to update a garmin satnav is a mini USB cable. This cable has a USB plug on one end and a small dovetail shaped plug on the other end. Most garmin satnav models have a plug in the back of the satnav, the same socket that you use to charge it. Some models have a socket in the bottom of the satnav beside where the power goes into those models. To update the satnav plug the small plug of the mini USB cable into the satnav socket and the other end into the USB socket of your computer.

Full details of how to update your garmin satnav are at http://www.fixya.com/support/r5628920-update_garmin_satnav_maps

If the laptop switches off as soon as you insert the usb cable, there is a problem with either the usb socket or the cable. It is a safety system which stops usb power being re-directed down the usb data lines.
If you have tried multiple cables with the same result then the problem is with the usb socket. try a different socket (a usb hub will help if you are short of spare sockets).
Using a mall light, and maby a magnifying glass, inspect the usb port for bent pins or contacts, some sockets have pins (older dell machines especially) which are not supported at all by plastic backing strip and can be bent easily by inserting the usb plug incorrectly or by children armed with a pen etc.
If you find bent pins (there should be 4 pins evenly spaced or 4 metal strips along a plastic backing peice) remove the battery and attempt to realign the strips with a small screwdriver. switch the laptop on and try a usb plug in the socket - make sure you insert the plug gently and squarely (and the right way round). If the laptop still fails, have another go or ask someone else (who is nimble fingered and technically minded) to try it.
Don't give up (unless you find the socket is broken ie. missing pins) I can guarantee 99% that this is the problem.
good luck

sounds like your pc's usb socket has a problem, try the following...
1. Try a different usb port,
2. Using a small light (and possibly a magnifying glass) look inside the usb port on the pc for bent pins or distortion within the socket causing the pins to touch something they shouldn't.
3. check the usb cable for minor damage, try a different cable if you can, different machines use different ways of manufacturing sockets making some more sensitive to a damaged plug than others.
The pc turning off is a safety system which prevents power being sent through data ports. If the pc turns off immediately after inserting the usb cable then that's a sure sign that there is a bad connection/short somewhere between the socket and the cable.
Hope this helps.

I think it is one of these: 1. the cable is kaput or 2. the socket where the cable goes into the camera is damaged (most probable) or 3. the socket where the cable goes into the computer is damaged (easy to check)
You could try cleaning all connections with a cotton earbud.
I've had this problem before - I damaged the camera socket - I've learnt to be more gentle! To get around it I bought a card reader. This is a better option anyway, as the delicate electronics of your camera are not subject to powers surges that may occur while it's connected to your computer.
Hope this helps! H

sallyduby we may have some confusion here.

CPU = Central Processing Unit. Another term used is Microprocessor, or simply Processor for short.

CPU does not refer to a Personal Computer. At least not since the 1960's, and not unless you wish to confuse someone with the wrong reference. ;)

This is Gateway Support > Gateway 838GM Desktop PC > Main Support page,

http://support.gateway.com/s/PC/R/5389/5389nv.shtml

In the list click on Components.

A) There is no adapter device for the CD drive, or DVD drive, unless this is a mistaken reference to the flat ribbon data cable

B) There is no adapter device for the Harddrive, unless this is a mistaken reference to the SATA data cable that connects the SATA harddrive to the motherboard.

C) There IS possibly an adapter for the Keyboard, if you are using a Keyboard with a USB connector on the end of the cable, and are not using the original Keyboard that has a PS/2 connector.

Example;

http://www.directron.com/freeusbps2.html

D) There is no adapter for the Media Card Reader, unless this is a mistaken reference to the data cable that connects the Media Card Reader to the motherboard.

E) There are no adapters for the Ram Memory module/s.

F) There are no adapters for the Modem. The Modem plugs straight into the motherboard.

G) There are no adapters for the Motherboard, unless a USB mouse, or again a USB keyboard, is being used.
The same style of adapter for the USB Keyboard will also work for a USB mouse.

H) There is no adapter for the Power Supply, unless this is a reference to a power cable adapter that could go to a computer case fan, from a 4-pin standard Peripheral power cable.

http://www.playtool.com/pages/psuconnectors/connectors.html#peripheral

(The 4-pin standard Peripheral power cable, and it's connector, are shown in the middle photo.
The Harddrive example/s shown is an IDE {PATA} harddrive. This style of Harddrive uses a 4-pin standard Peripheral power cable)

I) There is no adapter for the Intel Pentium 4 CPU {Processor} (3.0GHz, 800MHz FSB)

The motherboard has an LGA 775 processor socket.
The Processor has the socket holes, while the processor socket has the pins.
775 socket holes, 775 pins.

http://en.wikipedia.org/wiki/LGA_775

Unless this is a mistaken reference to the Fan/Heatsink combo that sits on top of the CPU.

Typical Fan/Heatsink combo example of Processors (CPU's) using an LGA 775 processor socket,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2943299&CatId=493

(Except the Gateway version is square)

J) No adapter for the Speakers unless I am mistaken.

Post back in a Comment, and give at least a general description of the adapter you are referencing to.

Regards,
joecoolvette

No. Your charger should have MiniUSB socket connection (see picture). You can also charge Nuvi by connecting it to computer with the help of standard USB cable. MiniUSB socket is on the back side of Nuvi.

The "data" cable for a printer either is:
* USB -- a small almost-square socket, less than 1/2 inch (1 centimeter),
* parallel-port -- a very-wide connector, more than 2 inches (5 centimeters).

Some printers have *BOTH* connectors.

Determine which connector(s) you have, and buy a cable.
Often, a "Thrift Store" will have the "parallel-port" cable for a dollar.
Don't pay more than $4 for a "USB" cable.
If you're buying a USB cable, make sure that there is a "square" end -- some USB cables have a smaller "mini-USB" connector, in order to connect to a digital camera.

it should be on the back..........remember its the square end of the usb that plugs into the printer

Im not sure what DIN sockets you're trying to describe here, but quite often, you can record from a tape player to a pc by connecting an rca cable to an adaptor; rca to 1/8"(headphone pin) and then plugging that headphone pin in to the microphone input on your computer.

I had the same problem a few days ago (April 5 2009). The problem turned out to be a dodgy USB socket on the back of the Tape2PC. There was a bent & broken pin in the USB socket.

Perhaps you have a similar problem with the USB port - have a close look at it in good light.

I took the the cover off the tape2pc (6 screws), and then removed the small circuit board containing the USB socket (2 screws). The part number on this board is 0038-2410-0000. This small board is connected to the main circuit board on the base of the box by a short cable. You just unplug this cable from the USB port board, cut a cable tie, and replace the USB port board. It is a very simple and quick job - it took no more than 10 minutes and only requires a small Philipps head (+) screw driver.

I don't know where you live, but I phoned the UK distributor for Ion and received a replacement board within 2 days.

The PC now recognizes the tape2pc again but I can't get any volume when I try to record my cassettes. Any suggestions with this?