computer

A new form of computer memory has won an award for innovation. UltraRAM combines the performance of ordinary computer memory with the long-term storage of flash. Most memory in a computer is DRAM (dynamic random access memory). This holds data that ... the computer processor is most likely to need to access imminently. It's a little like having paper documents on a desktop rather than in a filing cabinet: the cabinet has much more room, but it takes some time to walk to the cabinet to get the information, versus having it right on the desktop. One of the key drawbacks of DRAM is that it stores ... (view more)

Software engineers have been debating whether today's operating systems are slower to respond than their predecessors. It led one site to experiment with running Windows XP on a new computer. After some hassles of getting it going, it turned out ... that XP felt extremely fast to use, albeit with a serious risk of malware infection. The debate started when Julio Merino put together "real-time videos" of an old machine running Windows NT 3.51 (a business version roughly equivalent to Windows 95 for consumers) and a modern machine running Windows 11. (Those of us of a certain age may have to ... (view more)

Infopackets Reader 'ltb223' writes: " Dear Dennis, I have a Windows 7 Pro computer which I haven't used for a long time. Now I want to use it, but I cannot remember my password. It has only one user account, so I believe I need to reset the admin ... password. Is there anyway to recover the lost password or am I stuck with reinstalling Windows and losing all previous data and programs? " My response: It's possible to reset the admin password, or any user password using a special password reset 'trick', known as the 'utilman' and 'sticky keys' exploit. This exploit ... (view more)

Microsoft has warned users that a "wipe clean" option in Windows won't remove all files thanks to an ongoing bug. It's mainly a practical problem for anyone planning to sell or give away a computer with hopes of removing all personal data prior. The ... problem is specifically with the reset option in Windows that lets users "reinstall" the system without needing to download files or create a USB or DVD boot disc. This option always removes all installed applications, but users have a choice whether or not to also remove files such as documents. When they choose "remove everything", ... (view more)

Windows 11 will soon give users extra controls to stop applications hogging resources. The Task Manager change will help users balance performance and control. The new Efficiency Mode works in a similar way to power-saving mode on some PCs and ... mobile devices, though in this case the emphasis is on the processor. At the moment, users have several options for dealing with "greedy" applications but they all involve compromises. One option is to put the entire computer into a "Best Power Efficiency" option through the power mode settings. The problem is that this affects all ... (view more)

A new form of computer memory could cut costs and storage space. "UltraRAM" would combine storage and memory on a single unit. Historically computers have always had to use separate units for memory (which is only needed temporarily) and file ... storage (which needs to be available until intentionally deleted or altered). As a rough analogy, file storage is like a filing cabinet, while memory is more like an in-tray, holding information to hand for quick access during the current task. Today many machines use flash memory for both RAM (the main memory on a PC) and solid state drives (a quicker ... (view more)

Mozilla has announced a rethink of a key technology used to make web users safer. The latest update to its Firefox browser improves the "sandboxing" approach. One of the biggest security concerns with web browsers is the way a single application ... (the browser) can handle data from multiple sites open in different tabs. It creates the risk that a compromised site could access data from another site; for example, one tab might display or transmit emails, login details or financial information. The way browsers tackle this risk is called sandboxing. That means telling operating systems such as ... (view more)

Microsoft has released its Windows 11 eligibility checker tool. It now gives more detail on why a computer might not be ready to run the new system. The app in question is officially titled "PC Health Check" though that's a little misleading as it ... doesn't relate to whether the computer is currently working OK or has any serious problems. Instead it checks whether the computer is eligible to run Windows 11. It's available using this link: https://www.microsoft.com/en-gb/windows/windows-11#pchealthcheck The original version a few months ago didn't give much detail other than whether the PC " ... (view more)

Firefox has added a new feature letting users remove all traces of visiting a website, including cookies. It builds on the browser's existing technology that makes it harder for a single site to track users across the web. Both features aim to ... tackle the problem that tracking and other records of online activity come from a variety of sources. Visiting a particular site creates several pieces of data on a computer, while cookies are made more complicated because the site that places them on a computer isn't always the same as the site that access and uses the cookie. Total Cookie Protection ... (view more)

A surprise requirement for Windows 11 has left many users fearing their computer may not be compatible with the new system. The need for a Trusted Platform Module (TPM) has led to a price spike for the component, though there's no real need to panic ... or pay over the odds right now. The requirement came to light when Microsoft published a downloadable PC Health Check tool that told users whether their PC met all the hardware requirements for running Windows 11, which is due for release later this year. That led to a lot of confusion with users seeing the answer was "No," but the tool not saying ... (view more)