Gates to FPGAs: TTL Electrical Properties

On the path to exploring complex logic, let’s discuss the electrical properties that digital logic signals are comprised of. While there are many types of digital signals, here we are talking about the more common voltage based single-ended signals and not the dual-conductor based differential signals.

Simulated "Real Life"
Single-ended Logic Signal

I think of most logic as being in one of two major divisions as far as the technology used for today’s logic: Bipolar and CMOS. Bipolar is characterized by use of (non-insulated gate) transistors and most often associated with Transistor Transistor Logic (TTL) based logic levels. As CMOS technology came of age and got faster and became able to drive higher currents it began to augment or offer an alternative to bipolar logic families. This is especially true as power supply voltages dropped and the need for low power increased. We will talk more about CMOS in the next installment.

TTL
rtl
dtl

TTL was a result of a natural progression from the earlier Resistor Transistor Logic (RTL) and Diode Transistor Logic (DTL) technologies and the standards used by early TTL became the standard for a multitude of logic families to follow.

TTL Signal Voltage

When connecting two logic gates together there are essentially four voltages of interest: the high and low voltage that the gate’s output will produce, and the high and low voltage that the gate’s input is expecting.
Image2

TTL Output signal voltage specification:
Voltage Output High VOH 2.4V
Voltage Output Low VOL .4-.5V
TTL Input signal voltage specification:
Voltage Input High VIH 2V
Voltage Input Low VIL .8V

In short the output gate generates a slightly larger signal than required by the input gate; the difference between the output and input voltages allows for some loss of signal and/or the addition of some noise into the equation. This difference is often referred to as the noise margin.

TTL Voltage Compatibility

The TTL signal levels are usually the same, or very close for both “standard” 5 volt TTL and for low voltage 3.3 volt TTL, often referred to as LVTTL. While this would sound like they should then be able to connect together safely there is however a specification for most TTL/Bipolar logic families that states that the input signal cannot exceed the power supply by more than a few tenths of volts.  There is a  possibility that a 5 volt gate may generate more than 3.3 volts on its output, hence the problem.

3.3V TTL Feeding 5V TTL
5V TTL feeding 3.3v TTL

There are logic families such as 74AHCT that are tolerant of higher voltages than their power supply on their inputs, however this is a CMOS family and will be discussed in the next post.

Schottky Logic

Before I do a quick summary of the Bipolar/TTL families let me first explain what a “Schottky” family logic device is and where it gets its speed improvement from.

A Schottky Diode used to keep a transistor out of saturation and improve the speed.

A transistor when used as a switch can go into a state known as saturation. Part of the definition of “transistor saturation” includes the state when both Base-Emitter and Base-Collector junctions are forward biased, however the property of interest here is that it is also slow to turn off as there is an excess of charge built up that has to be drained off first before the device starts to respond. A Schottky diode across the base-collector junction effectively holds the transistor right on the edge of being turned “on” and keeps excessive charge from building up. A transistor paired with a Schottky diode in a gate is often redrawn as shown above on the right.

TTL Logic Families

74 Original TTL – Some parts still around.
74LS Low Power Schottky – Good compromise speed vs power/noise and inexpensive.
74S Schottky – The sledge hammer of the early TTL, speedy but a heavy lift.
74AS Advanced Schottky – When you really to go really fast.
74ALS Advanced Low Power Schottky – Fast and low power, however not without noise considerations due to the speed in which the signal changes (slew rate).
74F Fairchild Advanced Schottky TTL – Fast and low power, a little less noisy than ALS in my experience.
74L Low Power – Not widely used.
74H High Speed – An early compromise for more speed, not widely used.

Here you can see the bipolar TTL based families. Some of the families above are also able to sink and source a lot of current which we will also compare to their CMOS counterparts in the future.

Glitch Quiz

Lastly if you remember the last post which covered Basic Logic, I asked about a risk of a glitch in the circuit shown below on the left. The glitch would arise when “D” changes state because in theory there is a time when one equation, known as a term, has stopped being true before the other term has become true. In fact the D signal itself is not needed as the two sets of terms were otherwise identical

example1-resized
example2

Looking at the circuit on the right; have we gotten rid of the possibility of the glitch since the terms are no longer otherwise equal?

Filed under: Featured, hardware, slider

Talk of the Town: Hacker Channel Tomorrow

Get in touch with Hackers everywhere. Take part in the Collabatorium tomorrow, live!

request-to-join-hacker-channelThings get started on Wednesday, July 1st at 6:30pm PDT (UTC-7). Hundreds of hackers will be on hand discussing what they’re building, all the stuff happening in the hacker-sphere these days, and joining forces for that next great hack!

All are invited to take part. Head on over the Hackaday Prize Hacker Channel right now and click on the left sidebar link that says “Request to join this project”.

We highly recommend adding a custom avatar (if you haven’t already) so that others in the Collabatorium will be able to put a picture to your personality. The interface is ready for chat, links, images, code and much more so bring your questions and share your knowledge.

Now that you’ve clicked for an invite, while away the hours until it begins by heading over to VOTE in this week’s Astronaut or Not. And soon after you run through your 50 votes we’re sure you’ll also figure out you don’t have to wait for us to get the conversation started in the Hacker Channel ;-)

Filed under: The Hackaday Prize

Maker Faire Kansas City: Entrepreneurial Spirit Taking Shape

One of the great things about an event like the Kansas City Maker Faire is that there are so many reasons that makers sign up to show their things. Some makers come to teach a skill, and others to sell their handmade creations. Those with an entrepreneurial streak looking to launch a product might rent a booth to get a lot of eyes on their idea. That’s just what [Ted Brull] of Creation Hardware was after this weekend–exposure for Kevo, his small-scale vacuum former.

kevo-mt-dewKevo is a simple and affordable solution for makers of all stripes. It can be used to make molds, blister packaging for items, or even electronics enclosures. [Ted]’s Kickstarter campaign for Kevo has already been successfully funded, but there’s still plenty of time to get a Kevo kit for yourself. The basic reward includes the vacuum-forming chamber and two sizes of adapters that cover most vacuums. It also ships with an aluminium frame to hold polystyrene sheets during the heating and molding processes, and starter pack of pre-cut pieces in black, white, and clear plastic.

Creation Hardware had many vacuum-formed molds on display and were constantly making more from 3D-printed objects, toys, and other things. Our favorite mold was a 20oz bottle of Mountain Dew, which shows how far the small sheets of plastic can stretch.

Filed under: cons, Crowd Funding

Firefox 39 arrives with Hello link sharing, smoother animation and scrolling on OS X, better Android pasting

firefox_logo_new


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Mozilla today launched Firefox 39 for Windows, Mac, Linux, and Android. Notable additions to the browser include an option to share Hello URLs via social networks, smoother animation and scrolling on Mac OS X, and the ability to paste Android clipboard content into editable Web content.

Firefox 39 for the desktop is available for download now
on Firefox.com, and all existing users should be able to upgrade to it automatically. As always, the Android version is trickling out slowly on Google Play.

Mozilla doesn’t break out the exact numbers for Firefox, though the company does say “half a billion people around the world” use the browser. In other words, it’s a major platform that Web developers target — even in a world increasingly dominated by mobile apps.

Desktop

The most important addition to Firefox 39, from Mozilla’s point of view anyway, is Firefox Hello URL sharing on social networks. You can now share your Firefox Hello link on Facebook, Twitter, and LinkedIn.

In Firefox 33 beta, Mozilla introduced an experimental WebRTC feature that let users make free voice and video calls without needing to download additional software or plugins, nor
create an account. The feature was further improved and launched as part of Firefox 34 (it’s now powered by the OpenTok real-time communications platform from TokBox, owned by Spanish carrier Telefonica). Mozilla calls Firefox Hello “the first global communications system built directly into a browser” and ensures users don’t need to hand over personal information to use it. Because WebRTC is compatible with Chrome and Opera browsers as well, you don’t even need the same software or hardware as the person you want to call.

2015-06-12-14-57-31-85e47a

To use the new sharing option, you’ll first have to add your social networks by visiting Services for Firefox, clicking on each service you want to add, and then hitting the Activate Now button. After that, you can share links like so:

  1. Click the Firefox Hello button to create a conversation.
  2. In the conversation window, click Share link and choose a social network on the list.
  3. Log in to your social network if prompted and post the link.

When someone clicks the shared link, they’ll see a window where they can “Join the conversation.” Your Firefox Hello button will turn blue when they join.

Next up, Project Silk, which aims to provide smoother scrolling and animation, has arrived on OS X. You can check out the technical details on GitHub, including how Project Silk aligns hardware vsync signals among input, content painting, and composition modules.

Here’s the full Firefox 39 changelog:

  • New: Share Hello URLs with social networks.
  • New: Project Silk: Smoother animation and scrolling (Mac OS X).
  • New: Support for ‘switch’ role in ARIA 1.1 (web accessibility).
  • New: SafeBrowsing malware detection lookups enabled for downloads (Mac OS X and Linux).
  • New: Support for new Unicode 8.0 skin tone emoji.
  • Changed: Removed support for insecure SSLv3 for network communications.
  • Changed: Disable use of RC4 except for temporarily whitelisted hosts.
  • Changed: The malware detection service for downloads now covers common Mac file types (Bug 1138721).
  • Changed: NPAPI Plug-in performance improved via asynchronous initialization.
  • Changed: Performance of displaying dashed lines is improved (Mac OS X) (Bug 1123019).
  • HTML5: List-style-type now accepts a string value.
  • HTML5: Enable the Fetch API for network requests from dedicated, shared and service
    workers.
  • HTML5: Cascading of CSS transitions and animations now matches the current spec.
  • HTML5: Implement <link rel="preconnect">allowing anticipation of a future connection without revealing any information.
  • HTML5: Added support for CSS Scroll Snap Points.
  • Developer: Drag and drop enabled for nodes in Inspector markup view.
  • Developer: Webconsole input history persists even after closing the toolbox.
  • Developer: Cubic bezier tooltip now shows a gallery of timing-function presets for use with CSS animations.
  • Developer: localhost is now available offline for WebSocket connections.
  • Fixed: Improve performance for IPv6 fallback to IPv4.
  • Fixed: Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers.
  • Fixed: The Security state indicator on a page now correctly ignores loads caused by previous pages.
  • Fixed: Fixed an issue where a Hello conversation window would sometimes fail to open.

If you’re a Web developer, more details are available for you here: Trainspotting: Firefox 39 and Firefox 39 for developers.

Android

Firefox 39 for Android isn’t a major release by any stretch. One feature worth noting, however, is the ability to finally paste into “contentEditable elements.” While copy and paste works, you can’t yet cut text from contentEditable elements, but that’s in the works as well.

Here’s the full Firefox 39 for Android changelog:

  • New: Paste Android clipboard content into editable web content.
  • New: Support for ‘switch’ role in ARIA 1.1 (web accessibility).
  • Changed: Removed support for insecure SSLv3 for network communications.
  • Changed: Disable use of RC4 except for temporarily whitelisted hosts.
  • HTML5: Enable the Fetch API by default.
  • HTML5: List-style-type now accepts a string value.
  • HTML5: Implement <link
    rel="preconnect">
    .
  • HTML5: Cascading of CSS transitions and animations now matches the current spec.
  • HTML5: Added support for CSS Scroll Snap Points.
  • HTML5: Vertical text mode enabled by default on Developer Edition.
  • HTML5: Implement Cache API.
  • Fixed: Improve performance for IPv6 fallback to IPv4.
  • Fixed: Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers.

Mozilla typically releases new Firefox versions every six weeks, and we thus expect Firefox 40 to arrive by mid-August.

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Google updates Gmail with … wait for it … emoji

mail_logo_rgb_web


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While Google engineers bend over backwards to repair the horrific mess that is email , the company caught us by surprise today with its latest Gmail update: Google is rolling
out new emojis and themes.

The new themes are pretty easy to ignore — they’re just a selection of attractive photo backgrounds — but the new emojis are, at the very least, something new to play with while we ponder how “revolutionary” Apple Music truly is .

If you don’t yet see the new emojis in Gmail, please note: Google says “all of today’s web updates are rolling out over the next few days.”

Gmail’s featured a gargantuan
selection
 of dated-looking emojis since 2013; we’re not sure what’ll happen to them as this update rolls out.


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The Pebble Time is likable — but smartwatches have left

The side profile of the Pebble Time.


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I spent a few days with the new Pebble Time smartwatch, and for better or worse, that review period came not too long after I reviewed the Apple Watch.

I learned quickly that comparing these two devices isn’t meaningful, because their respective
scopes and use cases are different. And frankly, the Apple Watch is in a completely different league where design and user experience are concerned.

The Pebble Time is different from past Pebbles in that it has a more attractive rounded-square stainless steel front, and a color e-ink screen. It’s also thinner and sports a Gorilla Glass screen. And, Pebble claims, the battery will last “up to seven days.”

The Pebble Time seems like a fairly simple device that does a limited set of things — notifications, simple apps, etc. — well. And it manages these tasks in a way that is uniquely Pebble.

Pebble went back to its roots on Kickstarter for the Time, as if trying to declare a referendum on its existence as a smartwatch maker. The move obviously fired up the fan base in a big way; Pebble hit its funding goal in record
time
. In all, 78,471 backers pledged $20,338,986 to fund the Time. Most of those pledgers have now received their watch in the mail.

Navigation buttons

IMG_8572

Above: The Music app controls playback on a paired smartphone.

The Time has three buttons of equal size on its right side, and a single home button on the left side. Those buttons have a big job because they’re the only way of interacting with the device — it has no touchscreen.

On the right side, the top button is for scrolling up, the middle one is the “select”
button, and the bottom one is for scrolling down. But you can assign these buttons different roles by specific apps. For instance, in the music app, the top and bottom buttons can adjust the volume of music (playing on the paired smartphone). The middle button can be used to pause or play the music.

The single button on the left side of the watch brings you back to the home screen.

When you press either the top or bottom button on the right side of the watch from the home screen, you see your calendar, and the two buttons allow you to scroll backward and forward in time. However, you have to use some force to press those buttons and you have to hold the other side of the watch with your index finger to hold the watch in place.

The Times
scrolling calendar view.

Above: The Time’s scrolling calendar view.

Pressing the right side middle button takes you into a scrolling list of basic apps and settings. These include Settings, Music, Notifications, Alarms, and Watch Faces. After that, you’ll see a list of the apps you’ve installed.

If you want to change the order of these screens — such as to put your downloaded apps at the top — you can use the Pebble app on your phone to do that.

This all seemed sensible and straight-forward to me. It’s intuitive; you don’t really need to read an instruction manual before using a Pebble. That’s something I can’t say about the Apple Watch and many other smartwatches.

Setting up the Time

The Time connects to your phone via regular Bluetooth with Bluetooth Low Power (for notifications). I had some trouble getting my phone to connect with the Time using both
flavors of Bluetooth. In fact, my iPhone 6 didn’t seem excited about connecting with the Time at all — it took a couple of sessions to get it to work.

IMG_8571But after you pair the devices are paired, they stay linked, and notifications from my phone apps seemed to work just fine. You can see them at a glance, and you can dismiss them by pressing the Back button on the left side of the watch.

One thing you notice right away is that the Time has a much more powerful haptic engine than the Apple Watch. When it buzzes you with a notification, you know it.

Appearance

My initial complaint about the Time is the plastic body of the device and the band’s rubbery material.

The Time isn’t the sexiest-looking device; it’s certainly no match for the Apple Watch when it comes its looks. The metallic-looking face of the watch looks just fine, but that piece sits on top of a plastic body that comprises the rest of the body of the watch. It’s this material that’s the problem: it gives the Time a toy-like quality that would make me hesitant to wear the thing on a regular basis.

I also didn’t care for the Time’s watchband. This piece is the same (red) color of the watch itself, and it’s made out of a rubbery material. While I found that putting on the watch was easy, I didn’t like the way the material pulled at the hair on my arm. And the feel of the band on my wrist brought my attention to the watch at various times during the day; a comfortable band lets you forget about your watch until you need it.

The Screen

As other reviewers have noted, the bezel around the front of the watch is
covers a lot of real estate relative to the active screen area.

IMG_8576The Time uses a 64-color e-ink display. While I like that the screen has color (earlier Pebbles do not), the screen is dim and looks dull. Pebble may have gone way to far in dimming the screen to save battery life. I see no way of turning up the backlight.

As for the graphics you see in the OS, you can look at this a couple of ways. The graphics and lettering have a low-resolution, blocky look that reminds me of the old Mac interfaces from the ’80s. Some people might like this aesthetic. Others will just see it as kinda ugly.

Battery

Technically, Pebble’s claim that the battery life of the Time is “up
to seven days” is true. But I never saw battery burn rate anywhere near seven days of life on a single charge. In my experience, the Time’s battery runs down in three or four days.

Conclusion

Overall I found wearing the Time to be a little clunky in a physical sense. I’m not wild about the look of the device, and I found using the buttons to be a little difficult. I did get the feeling from using the device that it runs a mature and well-designed OS, such as it is.

The Pebble has lots of loyal fans who have been around since the time when it was the only smartwatch around. But I don’t belong to that crowd and have no special attachment to the device. The Time looks like a big improvement from the original Pebble watches, but compared to wearables I’ve seen from LG, Samsung, and Apple in the last year, it seems like a throwback to an earlier time in smartwatch history.

The $200 Pebble Time is available for preorder from
Best Buy, and it should start shipping around July 20.

Screen Shot 2015-06-29 at 2.47.00 PM

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Mobile ad tech takes center stage at Cannes Lions Festival

Cannes Lion logo


This sponsored post is produced by Fetch.

Another sunset has called time on the Cannes Lions International Festival of Creativity. This year’s annual awards show for the advertising industry went far to demonstrate ad tech’s key role in driving powerful campaigns that resonate with its audience at scale. It also added extra weight to the debate around great creative fuelled by data and technology.

No question, mobile sits perfectly at the intersection of people, data, and message. As one of the most vibrant and potentially noisiest events of the calendar year closed, there’s never been more of a focus on people and audience-first creative work — and mobile is fully
integrated into the fabric of pretty much every category of the advertising festival. Without a doubt, it’s the fastest growth sector of the industry; according to eMarketer, by 2019 mobile ad spend will reach $65 billion in the U.S. alone, accounting for almost 75 percent of total digital ad spend.

Formats took a vertical flip and mobile ads will be ‘less creepy’

While Facebook used Cannes to launch a brand new prototype — a 360-degree vertical video ad format which feels way more immersive and native to the app — Snapchat has teamed up with WPP and Daily Mail to monetize its 3V vertical ad format which displays content between a user’s existing content stream. As Snapchat CEO Evan Spiegel points out, “We care about not being creepy. That’s something that’s really important to us.”

Facebook’s format pushes
rich and immersive content in order to make ads more meaningful by keeping the ads integrated into the social platform. This allows marketers to make custom content that will take over the full screen when clicked on. It’s clear that consumers do not want mobile ads that are overly promotional and self-serving, but rather mobile advertising that will engage and entertain them, and make them feel valued as a customer (or potential customer) at a particular moment. Mobile has the ability, more than any other technology, to engage users based on their interests, location, preferences, etc.

Becky Brown, VP Global Marketing & Communications at Intel agrees; “Don’t underestimate the value that you bring, as long as you bring content that is relevant.” It’s something both data and creative teams will have to work on together to make happen.

Playfulness and storytelling aren’t constricted to a device or platform

“Unless we have something engaging to say, we are just wallpaper,” says Peter Blackshaw, Global Head of Digital & Social Media at Nestle. “People don’t want boring advertising.”

At this year’s Festival, both agencies and tech conglomerates definitely emphasized going beyond traditional ad formats to give users a more engaging experience. And great storytelling these days is fuelled by contextual data.

Platform brands like Spotify and Facebook continued to demonstrate just how their platforms lend themselves well to the art of story-telling — witness the immersive mobile ad experience and powerful personalization in play with the recently-launched Spotify Running service. And this year’s Cannes Lions Innovations welcomed stand-alone and branded technological solutions, with AI entering the mix. The Grand Prix for
Innovation went to what3words
, a universal addressing system based on a 10-foot global grid that claims it can enable identification of any particular place on the planet through an API which plugs into brands and advertisers.

For creative departments, there’s an imperative to continuously innovate and do so with vigour. Something at Fetch we know only too well, as an agency dedicated to creative departments working alongside developers and data analysts.

With increasing complexity comes a need for simplicity

2015 has been the year of media agency reviews (dubbed “Mediapalooza” by Adweek), with many advertisers seeking to build marketing businesses to meet the connected consumer at the right moment, while juggling the challenges of content, talent, data, creativity, and media transparency.

So while the emergence of ever-more ad technology companies along the Cannes marina increased in 2015, so, too, did the advertisers
looking to navigate the ever-changing mobile LUMAscape in order to understand the ‘what, where, and when’ that those specific technologies can bring to advertising.

Unilever Keith’s Weed suggested, “There’s an awful lot we need to do to simplify this business, and I ask you all to step back and simplify what we’re doing.” It’s a debate that’s ongoing and one in which practicality has its place as we encourage mobile advertisers to look beyond the platform or the device, to the person at the end of the device.

It’s been heartening to see a Cannes Festival full of data and technologically-driven ideas, ideas in which quality, an engaging experience, ease of use, utility, and scalability all play a rightfully important role.


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SalesMesh 3.0 now allows sales reps to team up outside of Salesforce

A sales rep, as shown on the AppMesh site


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Let’s say you’re a sales rep.

Some of your deals look likely, but others are very iffy. So, you don’t want to put the iffy ones in Salesforce, because your manager will hound you about them.

That’s the idea behind AppMesh’s SalesMesh. It offers a kind of smaller, parallel deal- and customer-tracker for sales reps, so
they can commit their opportunity and deal info only after it’s congealed.

Today, the San Francisco-based company is releasing version 3.0, with some communications capabilities for collaborating with other sales team members on the side. It’s available for iPads, iPhones, and iPod Touch.

CRM is “great for the corporation, but not for end users,” CEO and cofounder Leo Tenenblat told me. “We’re actually legitimizing what already happens,” he said, because reps already communicate outside Salesforce.


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SalesMesh began by letting reps decide which data to record and share via Salesforce. Now it allows reps to decide which info they want to share with others. Eventually, Teneblat said, the aim is to cover as much as 80 percent of a sales rep’s functional needs so Salesforce becomes more of an option for the final commit.

The application automates the saving and organizing of emails, calls, notes, contacts, and calendar events, and it works offline. Data can be synched between mobile devices, and reps can choose which data to automatically synchronize with Salesforce.

Version 3.0 adds collaborative note-taking, and
a shared opportunity/contact/activity management. Info like the stage an opportunity is in can be shared with anyone, whether a team member or a partner company on the outside. This allows reps to avoid having to use email or file sharing apps.

Tenenblat noted that reps already have a lot of options for privately sharing with a fellow sales rep or a vendor, but said 3.0 allows easier access to deal info. He added that CRMs generally “don’t let anyone communicate outside the company,” such as with partnering companies.

Sometimes, the sales manager is part of this parallel communication chain, he said, because the manager is responsible for forecasts and they might not be ready to include an iffy deal in the master record of Salesforce. SalesMesh is only integrated with Salesforce, and the company does not currently have plans for integration with other CRMs.

“It’s not a matter of hiding,” Tenenblat claimed. “It’s a matter of timing, [because]
they don’t want to share until it becomes more baked.”

A collaboration screen in Version 3.0 of SalesMesh

Above: A collaboration screen in Version 3.0 of SalesMesh

Image Credit: AppMesh

How high up does the chain of parallel communications/record-keeping go? It depends on the situation, he said. Sometimes the lowest junior rep wants to share everything with the Salesforce system of record, and sometimes the key players under the C suite want to keep a deal off the books until it’s ready.

He estimated that perhaps a third of sales reps “share everything with the boss,” a third keep their deals private
until they’re ready, and a third are in between.

SalesMesh has a free level, with a professional level at $8/monthly and a Rainmaker level of just under $20/monthly. So, unless the rep wants to bear the monthly cost of premium levels, at some point the manager will know they’re using this service.

Tenenblat pointed out that only about 30 to 40 percent of the platform’s users have Salesforce. The rest are using SalesMesh not as a parallel CRM, but as their only CRM. The San Francisco-based company said it doesn’t disclose the number of users, but noted that it has had “tens of thousands” of downloads.

SalesMesh’s main competitor, he said, is the collection of apps that reps use every day, like calendar, email, and spreadsheets.

He added that companies like Clari, Selligy and Tact “have
some similar core functionalities like calendar and email integration but overall they are still focused on the company’s needs, not the individuals.”

They enforce the reps’ workflow and capture every bit of data into Salesforce or other CRMs. Others are “CRM substitute applications like Pipedrive and Base,” he said, but they are sold to companies instead of individuals and they focus on things like forecasting and analytics.

“None of them have this direct person-to-person collaboration capability that we are now launching,” he said.

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Apple Releases iOS 8.4 with Apple Music

Apple has updated iOS to 8.4, and with it has launched its new Apple Music subscription service.

 

Read the full article at TidBITS, the oldest continuously published technology publication on the Internet. To get a full-text RSS feed, help support our work and become a TidBITS member! Members also enjoy an ad-free version of our Web site, email delivery of individual articles, the ability to make long comments with live links, and discounts on Take Control orders and other Apple-related products.

Apple Improves Networking in OS X 10.10.4

Apple has released OS X 10.10.4, which promises to solve networking reliability and iCloud Photo Library syncing, among other things.

 

Read the full article at TidBITS, the oldest continuously published technology publication on the Internet. To get a full-text RSS feed, help support our work and become a TidBITS member! Members also enjoy an ad-free version of our Web site, email delivery of individual articles, the ability to make long comments with live links, and discounts on Take Control orders and other Apple-related products.