So instead of allowing ActiveSync to be the on-board email program, you have an email program that is part of a mobile device management suite.It doesn't let the user touch anything therein unless it is in contact with the corporate server and has confirmation that the user is legitimate, hasn't been fired, and so on.If you have home-grown corporate applications or other proprietary apps that can run natively on the devices (increasingly the case as development tools improve for mobile devices) then there are also packages that let you deploy from a corporate equivalent of the Apple or Google app store and then wipe the apps remotely if the user leaves the company.Many people don't realise, for instance, that mobile device operating systems incorporate enterprise integration code that allows such tight control but simply sits there doing nothing if it is not connected to an enterprise system.Multi-user MIMO enables an access point to use the full capacity of the network by letting it talk to multiple targets at the same time. In our three-antenna scenario, it would allow the access point to use each antenna for a different device, or, perhaps one antenna for a phone and two antennas for a laptop. The Wi-Fi Alliance will have ratified that technology later this year.

There are other extensions to Wi-Fi worth noting that are either ratified or in the works. One of them is 802.11ad, now ratified, which was originally pushed by the WiGig Alliance, which subsequently merged into the Wi-Fi Alliance. It offers the same theoretical bandwidth as ac, but the biggest channel you can get on ac is 160Mhz – by bonding two 80Mhz channels together – while ad has a whopping four by 2.16GHz channels, bringing it closer to its theoretical limit.Operating on the 60GHz band, too, means it lowers the transmission range but also reduces power draw for the equipment using it. Ad is a point-to-point wireless standard that will focus heavily on the audio-visual market, explained Eduardo José Ortego, a project manager at Telefónica I+D.“The main disadvantage is the attenuation loss. You need to have the router in the same room as the TV,” he said. The higher the radio frequency, the shorter the range. So basically, operators will use this as a way to replace the rat’s nest of cables in the average home theatre system.

Also in the works is 802.11ax, also known as High-Efficiency Wireless (HEW), and it’s the IEEE’s attempt to squeeze more speed out of Wi-Fi within operating parameters. The only way to increase raw speed is by increasing signal-to-noise ratios – which requires more power – or by making the protocol more efficient.“There's a limit to how good our signal/noise ratio can be, and therefore, there's essentially a maximum raw speed,” Gast said. “If we devote more of the time to transmitting data and less to overhead, the overall speed increases even though the raw speed doesn't.”Other extensions coming down the pipe include 802.11mc, which will enhance device triangulation indoors between wireless access points, enabling precision indoor location tracking. Quite what that’ll do to technologies like Apple’s iBeacon remains to be seen.802.11af will make use of white space for WLAN operation, and 802.11ah, which will operate on sub-1GHz frequencies for long-range communications that will make it particularly useful for Internet of Things-type applications.These will all continue to push Wi-Fi to new heights. While not all of these standards will be displayed in ugly sticky labels on the side of your next laptop, some of them will nevertheless be a crucial part of your computing experiences in the years to come.

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If you have a device connected and secured sensibly, the risk of the contents going astray is small. The more usual problem is devices being lost or stolen, and nine times out of 10 when this happens the device's screenlock is already active. That means anyone who nicks or finds the device can't do anything without knowing the complex unlock password.Even if the screenlock is off, they shouldn't be able to change the settings so that it doesn't auto-lock after a set number of minutes. They will quickly get either bored or locked out.The cupboard will be bare by the time the new owner of the phone manages to get in
And because you can disable the unit with a simple tickbox on the central server the moment the user notifies you of the loss, the cupboard will be bare by the time the new owner of the phone manages to get in.We've talked mostly about phones and tablets, on which you will mainly be doing fairly basic applications such as email, calendars, office-type applications and browser-based operation. But what about laptops?Firstly, a corporate laptop is merely a normal corporate machine that happens to be portable enough to be operated outside the office as well as inside. So it will be part of the corporate directory structure, will have the corporate anti-virus suite on it and so on.

Taking a tightly-controlled device out of the office and using it remotely poses a minimal risk so long as (a) you ensure that it authenticates and encrypts strongly when connecting into the network; and (b) you equip it with software that prevents data being read if it falls into the wrong hands.If you are a Windows house, my view is that you simply need to use DirectAccess. It is brilliant and enables your corporate PCs to link securely to the organisation's network without farting about manually dialling a VPN link.There is only one downside: in my experience configuring DirectAccess from scratch is just a tad harder than, say, putting a man on the moon. Happily, there are companies out there that can do it for you, and I gather that modern versions require rather less rocket science. If you are not using Windows, well, you are back in traditional VPN territory.You must, of course, enforce two-factor authentication on corporate laptops in case they are lost. My favourite addition to the username/password challenge is to add fingerprint identification: it is easier for users to forget their 2FA dongle than their hand (and laptops with fingerprint sensors are no longer stupidly expensive).

To ensure that the PC can't be booted when lost or stolen, packages such as BitLocker and a bazillion others on the market combine with special on-board hardware in the laptop to encrypt the on-board disks. Again, you need strong authentication at boot time, but with this caveat you can make your portable computers super-secure.There is one other thing you can look at: what data the users access when laptops are outside the corporate network. This is particularly relevant to internet access: you of course have perimeter controls that intercept unwitting attempts by users in the office to access www.please-give-me-a-virus.com, but how do you control that when they are at home?Easy: you buy one of the products (I really like WebSense's offering) that plonks an extension on the laptop to enforce the corporate policy when the device is outside the network.Sounds bonkers, but since you have prohibited users from de-installing software from their machines (you have, haven't you?) there is nothing they can do to get around it, and they can't whinge about you controlling what they can do with a corporate device.

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The PCMark8 benchtest threw up a selection of results all around the 2,500 mark. That’s better than the Core i5-powered Surface 3 Pro can manage. Some of the T300's higher score comes courtesy of the HD Graphics 5300 GPU. Intel has made an important step forward with the Core M series integrated graphics processors.The 3DMark scores for Cloud Gate and Sky Diver were both above what you'd expect from your average 2014 vintage Ultrabook. Just for fun and grins, I also ran Crysis. At full screen 1200x1600 and medium detail it played perfectly. Up the detail to high and everything becomes noticeably less fluid – but that came as no surprise.For storage you have to make do with 128GB, or about 95GB after system requirements. Whether or not that’s enough depends on how much stuff you tend to keep on your laptop. I keep very little so it’s not an issue for me. If it is, you can pick up 64GB MicroSD cards for under £30. I couldn’t get the back of my T300 to see if that 128GB can be upgraded. I suspect it can’t.

The T300 suffers from a failing not common to the T90 and T100, namely the need for two chargers. You see, you can charge the lesser models through a microUSB connector but the T300 requires a bespoke charger for the tablet and a microUSB charger for the dock. Of course you can charge the dock from the tablet but it’s still another cable to lose while about and about.The tablet’s (fixed) battery is a 36Whr unit. For a comparison the MacBook Air has a 38Whr battery. The PCMark8 battery test drained the T300 in 3 hours and 45 minutes. But that’s like thrashing a Vauxhall Corsa around the Nürburgring and moaning that the brakes faded after ten laps.Looping a 1080p video at maximum screen brightness turned the lights out after six hours and 15 minutes. In everyday use I was getting between five and eight hours from a charge depending on what I was doing – writing this review or browsing the web or editing HD video. That’s not outstanding but it is acceptable. Asus reckons the keyboard battery is good for 85 hours. They could be right; I didn't manage to drain it during the week I had it for.

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