When purchasing a used laptop it should both serve functionally and at the same time save money. Doing a little amount of research by comparing and weighing various options from different kinds of sources will help in achieving the aim to buy used laptops at the best possible price.
Laptops have become a necessity these days. Used laptops are seen as a viable option to own a laptop at a very affordable price. These are the laptops that have been used by a person for sometime and sold for some reasons. Even if the laptop is used for a single day, it is called as a used laptop.
The reasons for purchasing used laptops are many. The main reason is that, it is available at a cheaper rate than the retail price of any new laptop. The availability of used laptops has increased owing to the recycling legislation that makes discarding of old PCs very expensive. Also used monitors are used for photo editing as the CRT monitors provides ultimate color purity than the LCD monitors for editing colors.
When purchasing a used laptop it should both serve functionally and at the same time save money. Doing a little amount of research by comparing and weighing various options from different kinds of sources will help in achieving the aim to buy used laptops at the best possible price. The price of the used laptop should coincide with the features. Internet serves as a good source for searching used laptops.
The working condition of the used laptop is of utmost importance. Normally it is not recommended to buy a laptop, which is more than three years old, for the reasons that either the system would have become outdated, or the user may not be able to run the latest applications and soft wares on it.
The features on the used laptops are the next important thing to be taken into consideration. The speed of the used laptop needs to be checked as used laptops run at a lower speed than the normal desktops with the same processor. Used laptop with less than 128 MB memory is not at all recommended for buying. The screen size, resolution and definition are other important factors in a laptop. Portability of used laptops is also taken into consideration. Laptops these days are getting slimmer and lighter. The weight of the backpack and, accessories should be kept in mind along with the weight of the used laptop to see if it is comfortable to carry. It is wise to purchase an extra battery while buying used laptops as the battery life of any laptop can be only for two years time.
While buying used laptops, checking should be done if it has a wireless connectivity, if not at least should have an external wireless card, since connectivity to the internet and intranet is very common these days. Select the one with a longer range and greater speed.
Check for a USB ports as older laptops may not have them. The more the USB ports the more convenient it is. Also the hard drive of the used laptop needs to be more than 20 GB. The higher hard drive space of the used laptop purchased depends on the budget of the buyer. These days, songs and movies are stored in the laptops requiring larger hard disk space. The most important thing is to buy a used laptop from a reputed dealer so that the purchaser can get a warranty on it.
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Selasa, 02 Agustus 2011
Jumat, 15 Juli 2011
Evaluating a Used Computer
Find out why a proper evaluation of a used computer is very crucial to get the best before buying one.
Used computers are available plenty in number. But, the prime concern is that how it will satisfy the needs of the purchaser. The next one is about the functionality of the used computer and the longevity of the computer parts of the used computer. Many people decide to purchase used computers due to a tight budget, but they should not end up buying a showpiece rather than a working piece. This makes it very important to evaluate the used computer before buying it. Evaluation can be done by the purchaser himself provided he has some knowledge on computers and their parts. If not, he can get some help from their friends or relatives who are good in evaluating computers.
The used computer’s physical parts should be inspected thoroughly. First step is to look for any damages and then trying to turn on and off. It should be done by the buyer or by his friend rather than watching the computer sales person do it as it will alert for any glitches. Checking needs to be done to find out if the used computer has an original version of the operating software without which the computer is not worth buying. Manuals, licenses for software applications, discs and fonts should be got along with the computer. The operating system of the used computer should be compatible enough to run the required applications of the buyer. Some times the seller may sell a used computer along with used disk drives, scanners and printers and include the cost of them too. It is not wise to buy used scanner, printers or disk drives as they have peripherals with moving parts which wear and tear with the passage of time and also the cost of them can be deducted making the price of the used computer even lesser.
The speed of the central processing unit needs to be checked. If it is not up to the expectation of the buyer, it needs to be found out if the used computer system can be upgraded for improving the speed and functionality. The entire hardware components should be checked including the keyboard, speakers, monitor, mouse and microphones. It should be if all the hardware components inside the computer like the CD-ROM drive, sound card, number of RAM sockets etc are if present or not and if present what are the components in use. Also it needs to be checked whether it has a provision for adding different type of cards etc.
If the purchaser has already got some computer components like the monitor, printer and so on, the used computer which is bought should be compatible with them. Nowadays used Pentium machines and power PCs are available at very low price. It is not advised to buy a used computer which is very old. Also it is good to find out if the used computer comes with a transferable warranty or service, if so it is worth buying.
The buyer should not end up overpaying as used computers depreciate at a lightning speed. There are many online auctions, which can give the idea of how much people are ready to pay for a used computer. Unfortunately, there is no reputed or unbiased source for knowing the prices for used computers.
Used computers are available plenty in number. But, the prime concern is that how it will satisfy the needs of the purchaser. The next one is about the functionality of the used computer and the longevity of the computer parts of the used computer. Many people decide to purchase used computers due to a tight budget, but they should not end up buying a showpiece rather than a working piece. This makes it very important to evaluate the used computer before buying it. Evaluation can be done by the purchaser himself provided he has some knowledge on computers and their parts. If not, he can get some help from their friends or relatives who are good in evaluating computers.
The used computer’s physical parts should be inspected thoroughly. First step is to look for any damages and then trying to turn on and off. It should be done by the buyer or by his friend rather than watching the computer sales person do it as it will alert for any glitches. Checking needs to be done to find out if the used computer has an original version of the operating software without which the computer is not worth buying. Manuals, licenses for software applications, discs and fonts should be got along with the computer. The operating system of the used computer should be compatible enough to run the required applications of the buyer. Some times the seller may sell a used computer along with used disk drives, scanners and printers and include the cost of them too. It is not wise to buy used scanner, printers or disk drives as they have peripherals with moving parts which wear and tear with the passage of time and also the cost of them can be deducted making the price of the used computer even lesser.
The speed of the central processing unit needs to be checked. If it is not up to the expectation of the buyer, it needs to be found out if the used computer system can be upgraded for improving the speed and functionality. The entire hardware components should be checked including the keyboard, speakers, monitor, mouse and microphones. It should be if all the hardware components inside the computer like the CD-ROM drive, sound card, number of RAM sockets etc are if present or not and if present what are the components in use. Also it needs to be checked whether it has a provision for adding different type of cards etc.
If the purchaser has already got some computer components like the monitor, printer and so on, the used computer which is bought should be compatible with them. Nowadays used Pentium machines and power PCs are available at very low price. It is not advised to buy a used computer which is very old. Also it is good to find out if the used computer comes with a transferable warranty or service, if so it is worth buying.
The buyer should not end up overpaying as used computers depreciate at a lightning speed. There are many online auctions, which can give the idea of how much people are ready to pay for a used computer. Unfortunately, there is no reputed or unbiased source for knowing the prices for used computers.
Kamis, 16 Juni 2011
Cheap Laptops: How to Buy the Right One
Cheap and inexpensive laptops are available plenty in number in the market. While buying laptops, price factor alone should not limit the purchase. Find out how you can buy the right cheap laptop for you.
Cheap and inexpensive laptops are available plenty in number in the market. While buying laptops, price factor alone should not limit the purchase. Cheap laptops are made available to the consumer to suit the budget as well as specific requirements. The person buying a laptop should be very clear regarding the required features, options and then conduct a search to match his needs. The place of purchasing cheap laptops is also important. There are various sources from which a person can buy cheap laptops. Out of all the sources, Internet is considered to be the best place to purchase laptops. A same laptop model can be sold at different prices in different websites. The purchaser can easily select the one with a lesser price easily. Also it is better to avoid impulse purchase as far as laptops are concerned, since it is impossible for a lay man to comprehend the hi-tech lingo associated with laptop computers like the flat panel TFT, WiFi connectivity, wireless and many more features.
Features to be considered before buying cheap laptops:
Processor of the laptop: A processor is very important to run applications and to perform on-screen tasks. The processor should not be less than 1.4 GHz as it may affect the quick performance of the laptop. For day today operation using word processing, e-mail, spread sheets etc the above processor speed is enough. When Pentium processors are bought they assure a longer battery life and at the same time they are quick.
Screen size of the cheap laptops should not be less than 12.1 inches. The screen size of laptops is measured diagonally. The larger the screen size, the higher the resolution, making it easy for viewing more information all at once.
Laptops should have a good battery life as they are carried with the operator for presentations, or for calculations whenever and wherever they are required. A laptop with a good battery life should be able to perform jobs ranging from 3 to 7 hours of non stop work without any electrical charge required in between. Lithium ion rechargeable batteries are an ideal choice.
The hard drive capacity is very important to store large amount of data on to the laptops. A cheap laptop can be chosen with a hard drive capacity ranging from 20 GB to 40 GB depending on the person’s usage.
The keyboards of laptops are different from those of the desktop computers. The keys on the keypad are relatively smaller and are packed closely with each other. Hence, it is very important to see if it can be handled comfortably before purchasing a cheap laptop.
Touchpad or pointing stick inbuilt with a laptop can be more very useful than a mouse connected via USB port. Two USB ports are more than enough for a cheap laptop; in case more ports are required the user can use an external USB hub.
The ideal weight of the laptops should be between 4 – 10 pounds, never go for a more weighing laptop even if it comes for a very cheap amount. In order to reduce the weight of the laptops, external CD drives can be used. For communications a built in Ethernet port is more ideal than the serial ports or infrared ports.
Cheap and inexpensive laptops are available plenty in number in the market. While buying laptops, price factor alone should not limit the purchase. Cheap laptops are made available to the consumer to suit the budget as well as specific requirements. The person buying a laptop should be very clear regarding the required features, options and then conduct a search to match his needs. The place of purchasing cheap laptops is also important. There are various sources from which a person can buy cheap laptops. Out of all the sources, Internet is considered to be the best place to purchase laptops. A same laptop model can be sold at different prices in different websites. The purchaser can easily select the one with a lesser price easily. Also it is better to avoid impulse purchase as far as laptops are concerned, since it is impossible for a lay man to comprehend the hi-tech lingo associated with laptop computers like the flat panel TFT, WiFi connectivity, wireless and many more features.
Features to be considered before buying cheap laptops:
Processor of the laptop: A processor is very important to run applications and to perform on-screen tasks. The processor should not be less than 1.4 GHz as it may affect the quick performance of the laptop. For day today operation using word processing, e-mail, spread sheets etc the above processor speed is enough. When Pentium processors are bought they assure a longer battery life and at the same time they are quick.
Screen size of the cheap laptops should not be less than 12.1 inches. The screen size of laptops is measured diagonally. The larger the screen size, the higher the resolution, making it easy for viewing more information all at once.
Laptops should have a good battery life as they are carried with the operator for presentations, or for calculations whenever and wherever they are required. A laptop with a good battery life should be able to perform jobs ranging from 3 to 7 hours of non stop work without any electrical charge required in between. Lithium ion rechargeable batteries are an ideal choice.
The hard drive capacity is very important to store large amount of data on to the laptops. A cheap laptop can be chosen with a hard drive capacity ranging from 20 GB to 40 GB depending on the person’s usage.
The keyboards of laptops are different from those of the desktop computers. The keys on the keypad are relatively smaller and are packed closely with each other. Hence, it is very important to see if it can be handled comfortably before purchasing a cheap laptop.
Touchpad or pointing stick inbuilt with a laptop can be more very useful than a mouse connected via USB port. Two USB ports are more than enough for a cheap laptop; in case more ports are required the user can use an external USB hub.
The ideal weight of the laptops should be between 4 – 10 pounds, never go for a more weighing laptop even if it comes for a very cheap amount. In order to reduce the weight of the laptops, external CD drives can be used. For communications a built in Ethernet port is more ideal than the serial ports or infrared ports.
Selasa, 24 Mei 2011
Avoiding Purchase of Stolen Computers
Most of us go for used computers for the main reason that they can be purchased for a very lesser amount. Read to on to learn how to avoid buying a stolen computer while doing so.
Most of us purchase used computers for the main reason that they can be purchased for a very lesser amount. When doing so, there is a high risk of purchasing a stolen computer, which can be passed off as a used computer. The incidence of purchasing a stolen computer is more when they are got in the name of used computers from third party computer dealers like the computer dealers online or from a theft store or from a pawnbroker who has no idea about the history of the computer he is selling.
<b>Following measures can be taken to avoid buying a stolen computer: </b>
One of the safe measures while buying used computer is to buy through a credit card or check payment rather than making cash purchase. If the seller insists on cash payment, the purchaser can be very sure that the computer may be a stolen one. Also stolen computers are sold at very low prices. If the buyer has good knowledge about the price trends of computers in the market, he can for sure find out if the computer sold as a used computer is of a genuine kind or not.
The place of buying used computer is of outmost importance as a reputed dealer or seller will have a well-established location. They do not sell on the streets. Hence, it is better to avoid buying used computers from the street side shops, which may be fly by night shops. Such sellers attract the buyers with the pricing or heavy discounts or even freebies along with the computers. If the buyer is not sure about the computer, he can very well ask for the documents pertaining to the computer or can find out if receipts are issued for the purchase. The best method of finding out is to check the serial number of the used computer that can be done with the help of the local law enforcement personnel.
The buyer has all the rights to ask the seller about the reason for the sale of the used computer, where it was purchased and nature of payment made initially. If the buyer is satisfied, he can go ahead with the purchase, else should move on to the next seller. Normally, one can find out if the seller is genuine or not through his body language.
A person selling illegal things will show frenzied movements, will agree even for a rock bottom price with even a small amount of profit for him, mostly will not have a decent language, will try to sell in haste, will always be looking around to find out if someone is watching him and will not have an eye contact while selling and so on.
Such kind of illegal sales of used computers happen as the illegal seller has the facility to advertise free of cost. Also posing as a private seller there is no need to provide a VAT receipt, which makes him free of any legal action being taken against him. Hence it is not advised to buy a used computer without a cash receipt provided by the seller.
Most of us purchase used computers for the main reason that they can be purchased for a very lesser amount. When doing so, there is a high risk of purchasing a stolen computer, which can be passed off as a used computer. The incidence of purchasing a stolen computer is more when they are got in the name of used computers from third party computer dealers like the computer dealers online or from a theft store or from a pawnbroker who has no idea about the history of the computer he is selling.
<b>Following measures can be taken to avoid buying a stolen computer: </b>
One of the safe measures while buying used computer is to buy through a credit card or check payment rather than making cash purchase. If the seller insists on cash payment, the purchaser can be very sure that the computer may be a stolen one. Also stolen computers are sold at very low prices. If the buyer has good knowledge about the price trends of computers in the market, he can for sure find out if the computer sold as a used computer is of a genuine kind or not.
The place of buying used computer is of outmost importance as a reputed dealer or seller will have a well-established location. They do not sell on the streets. Hence, it is better to avoid buying used computers from the street side shops, which may be fly by night shops. Such sellers attract the buyers with the pricing or heavy discounts or even freebies along with the computers. If the buyer is not sure about the computer, he can very well ask for the documents pertaining to the computer or can find out if receipts are issued for the purchase. The best method of finding out is to check the serial number of the used computer that can be done with the help of the local law enforcement personnel.
The buyer has all the rights to ask the seller about the reason for the sale of the used computer, where it was purchased and nature of payment made initially. If the buyer is satisfied, he can go ahead with the purchase, else should move on to the next seller. Normally, one can find out if the seller is genuine or not through his body language.
A person selling illegal things will show frenzied movements, will agree even for a rock bottom price with even a small amount of profit for him, mostly will not have a decent language, will try to sell in haste, will always be looking around to find out if someone is watching him and will not have an eye contact while selling and so on.
Such kind of illegal sales of used computers happen as the illegal seller has the facility to advertise free of cost. Also posing as a private seller there is no need to provide a VAT receipt, which makes him free of any legal action being taken against him. Hence it is not advised to buy a used computer without a cash receipt provided by the seller.
Senin, 16 Mei 2011
Advantages of Buying Refurbished Laptops
Refurbished laptops are the best to choose if you are looking to buy affordable and cheap laptops. This article discusses various aspects of refurbished laptops and helps you choose the right one for you.
Laptops can be sent back to the manufacturer if the purchaser finds the screen of the laptop scratched or with a minor blemish, or if it is an unwanted present to him or if the packaging of the laptop is dented etc. Such laptops are inspected, tested again for quality and repackaged by the manufacturer and sold for a very less price. Such laptops are called as refurbished laptops.
<b>Factory refurbished laptops: </b>
The laptops in the factory undergo rechecking for any manufacturing defect by passing through various stages of examination. Then, when no fault is found, the hard disk of the laptop is reformatted and again the operating system is loaded. It is again made to work for less than 4-5 hours time to check for any defect and the parts are replaced if they are found to be defective. The refurbished laptop is then updated with a new serial number to mark it as a factory refurbished laptop. Such factory refurbished laptops are of high quality available to the consumer at a lesser retail price. Such refurbished laptops can be got from almost all the renowned brands. However the process carried out for the restoration of laptops may differ from company to company. The main aim is to make the laptop run again efficiently as it used to be previously.
<b>Custom refurbished laptops: </b>
These are repaired laptops which are reassembled to match the customer’s preference. It gives an opportunity to get a complete laptop solution at a very affordable price to the customer. The utilities offered by the customer refurbished laptops are got at a cost of a used laptop. It also avoids the necessity to upgrade immediately, which is not the case with the standard laptop. It allows the customers to have preferences in terms of selecting the features like the screen size, processor speed requirements, multimedia, memory capacity, hard drive size, optical drive, graphics, accessories, Bluetooth etc.
When purchased in bulk, custom refurbished laptops are the best option as it combines both functionality and price advantage together. Additional benefits can be availed through promotional offers and discounts from the manufacturers.
<b>Advantages of purchasing refurbished laptops: </b>
The refurbished laptops are of high quality as they are checked for high standards of performance at each level of examination done. The consumer can get a branded, quality laptop of a latest model at a very less price compared to the retail price. More over discounts are offered to military personnel, senior citizens and students who can maximize their savings by purchasing a refurbished laptop. The refurbished laptops can be selected from renowned brands available in the market at a lesser cost. Such refurbished laptops are also got with 1 year warranty which can be extended up to 3 years. The warranty period supports replacement of parts and maintenance required by the laptop. Hence purchasing such laptops are very reliable. The refurbished model laptops enable the customers get more features at a lower cost. When the purchaser is bent on buying the latest, trendiest laptop, but cannot afford to buy a new one he can go for a refurbished laptop to get satisfied.
Laptops can be sent back to the manufacturer if the purchaser finds the screen of the laptop scratched or with a minor blemish, or if it is an unwanted present to him or if the packaging of the laptop is dented etc. Such laptops are inspected, tested again for quality and repackaged by the manufacturer and sold for a very less price. Such laptops are called as refurbished laptops.
<b>Factory refurbished laptops: </b>
The laptops in the factory undergo rechecking for any manufacturing defect by passing through various stages of examination. Then, when no fault is found, the hard disk of the laptop is reformatted and again the operating system is loaded. It is again made to work for less than 4-5 hours time to check for any defect and the parts are replaced if they are found to be defective. The refurbished laptop is then updated with a new serial number to mark it as a factory refurbished laptop. Such factory refurbished laptops are of high quality available to the consumer at a lesser retail price. Such refurbished laptops can be got from almost all the renowned brands. However the process carried out for the restoration of laptops may differ from company to company. The main aim is to make the laptop run again efficiently as it used to be previously.
<b>Custom refurbished laptops: </b>
These are repaired laptops which are reassembled to match the customer’s preference. It gives an opportunity to get a complete laptop solution at a very affordable price to the customer. The utilities offered by the customer refurbished laptops are got at a cost of a used laptop. It also avoids the necessity to upgrade immediately, which is not the case with the standard laptop. It allows the customers to have preferences in terms of selecting the features like the screen size, processor speed requirements, multimedia, memory capacity, hard drive size, optical drive, graphics, accessories, Bluetooth etc.
When purchased in bulk, custom refurbished laptops are the best option as it combines both functionality and price advantage together. Additional benefits can be availed through promotional offers and discounts from the manufacturers.
<b>Advantages of purchasing refurbished laptops: </b>
The refurbished laptops are of high quality as they are checked for high standards of performance at each level of examination done. The consumer can get a branded, quality laptop of a latest model at a very less price compared to the retail price. More over discounts are offered to military personnel, senior citizens and students who can maximize their savings by purchasing a refurbished laptop. The refurbished laptops can be selected from renowned brands available in the market at a lesser cost. Such refurbished laptops are also got with 1 year warranty which can be extended up to 3 years. The warranty period supports replacement of parts and maintenance required by the laptop. Hence purchasing such laptops are very reliable. The refurbished model laptops enable the customers get more features at a lower cost. When the purchaser is bent on buying the latest, trendiest laptop, but cannot afford to buy a new one he can go for a refurbished laptop to get satisfied.
Rabu, 11 Mei 2011
A Checklist for Used Computers
It is very important to check a used computer thoroughly before buying it as it may lead to problems in the future. This article lists out a few key points that you should keep in mind while buying a used computer.
It is very important to check a used computer thoroughly before buying it as it may lead to problems in the future. A hard drive will not show any outward signs but may be deteriorating. The same way the needle can suddenly slip and can cause scratches on the disc ultimately leading to memory loss as used computers can fail any time. If they are checked, the faults which may occur can be known. Let us first see the possible faults which may occur while purchasing a used computer.
Hard disk failures can happen due to heavy wear and tear over a period of time. The read and write heads of a hard disk are used to retrieve or recode data stored on the hard disk with the help of a disk platter rotating at a high speed. Over a period of time the risk of failure or malfunction of disk increases. Faulty sectors of the hard disks can be found out only if a full surface scan is done on the used computer. The scanning time depends on the capacity and size of the hard disk of the used computer. Many skip this procedure due to the time consuming process of scanning the whole disk and end up purchasing a used computer with a faulty sector.
Monitors need to be checked for any faults. The malfunctioning of a monitor is called a “dry joint” which results in the monitor not working after getting warmed. This can be checked only if the monitor is made to work for at least 20 to 30 minutes after switching on the computer.
Next is to look for any possibilities of the central processing unit getting freezed. Normally all the central processing units have a fan and heat sink for keeping the unit cool. Over a period of time the fans may not work properly due to the accumulation of dust and dirt resulting in over heating of the central processing unit and even leading to stopping from functioning. While buying a used computer the fan needs to be checked and if any abnormal sound is heard, it is not good for purchase.
The used computer may have a higher possibility of getting crashed and freezed due to the usage of the operating system for a good number of years. There may be a cache or RAM fault due to the over exposure leading to loss of data. To increase the performance of the computer and to avoid crashing, the operating system of the used computer can be reinstalled with a new operating system or a fresh one.
While checking the used computers for any faults, it is good to disconnect the network connection if any present before performing the tests. Also it is advisable to check the drives like the CD or DVD by opening and closing them and also playing something on the drives to see how they work. Monitors of the used computers can be checked for the resolution and brightness by trying different options of color, settings and so on. To check the hard disk size the CMOS setup can be gone through and to verify the speed of the processor, cache and RAM the pause button is pressed when it appears on the screen during the booting process. To check the booting process, the computer can be turned on and off a few times and seen how it responds. Checking should be done to see if all the passwords are erased before purchasing a used computer.
It is very important to check a used computer thoroughly before buying it as it may lead to problems in the future. A hard drive will not show any outward signs but may be deteriorating. The same way the needle can suddenly slip and can cause scratches on the disc ultimately leading to memory loss as used computers can fail any time. If they are checked, the faults which may occur can be known. Let us first see the possible faults which may occur while purchasing a used computer.
Hard disk failures can happen due to heavy wear and tear over a period of time. The read and write heads of a hard disk are used to retrieve or recode data stored on the hard disk with the help of a disk platter rotating at a high speed. Over a period of time the risk of failure or malfunction of disk increases. Faulty sectors of the hard disks can be found out only if a full surface scan is done on the used computer. The scanning time depends on the capacity and size of the hard disk of the used computer. Many skip this procedure due to the time consuming process of scanning the whole disk and end up purchasing a used computer with a faulty sector.
Monitors need to be checked for any faults. The malfunctioning of a monitor is called a “dry joint” which results in the monitor not working after getting warmed. This can be checked only if the monitor is made to work for at least 20 to 30 minutes after switching on the computer.
Next is to look for any possibilities of the central processing unit getting freezed. Normally all the central processing units have a fan and heat sink for keeping the unit cool. Over a period of time the fans may not work properly due to the accumulation of dust and dirt resulting in over heating of the central processing unit and even leading to stopping from functioning. While buying a used computer the fan needs to be checked and if any abnormal sound is heard, it is not good for purchase.
The used computer may have a higher possibility of getting crashed and freezed due to the usage of the operating system for a good number of years. There may be a cache or RAM fault due to the over exposure leading to loss of data. To increase the performance of the computer and to avoid crashing, the operating system of the used computer can be reinstalled with a new operating system or a fresh one.
While checking the used computers for any faults, it is good to disconnect the network connection if any present before performing the tests. Also it is advisable to check the drives like the CD or DVD by opening and closing them and also playing something on the drives to see how they work. Monitors of the used computers can be checked for the resolution and brightness by trying different options of color, settings and so on. To check the hard disk size the CMOS setup can be gone through and to verify the speed of the processor, cache and RAM the pause button is pressed when it appears on the screen during the booting process. To check the booting process, the computer can be turned on and off a few times and seen how it responds. Checking should be done to see if all the passwords are erased before purchasing a used computer.
