diff --git a/src/channelmanager.cpp b/src/channelmanager.cpp
new file mode 100644
--- /dev/null
+++ b/src/channelmanager.cpp
@@ -0,0 +1,145 @@
+/*
+  Copyright © 2016 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "channelmanager.h"
+
+#include <QStringList>
+#include <QModelIndex>
+
+ChannelManager::ChannelManager(unsigned numberOfChannels, unsigned numberOfSamples, QObject *parent) :
+    QObject(parent)
+{
+    _numOfChannels = numberOfChannels;
+    _numOfSamples = numberOfSamples;
+
+    QStringList channelNamesList;
+
+    for (unsigned int i = 0; i < numberOfChannels; i++)
+    {
+        channelBuffers.append(new FrameBuffer(numberOfSamples));
+        channelNamesList << QString("Channel %1").arg(i+1);
+    }
+
+    _channelNames.setStringList(channelNamesList);
+
+    connect(&_channelNames, &QStringListModel::dataChanged,
+            this, &ChannelManager::onChannelNameDataChange);
+}
+
+ChannelManager::~ChannelManager()
+{
+    for (auto buffer : channelBuffers)
+    {
+        delete buffer;
+    }
+}
+
+unsigned ChannelManager::numOfChannels()
+{
+    return channelBuffers.size();
+}
+
+unsigned ChannelManager::numOfSamples()
+{
+    return _numOfSamples;
+}
+
+void ChannelManager::setNumOfChannels(unsigned number)
+{
+    unsigned int oldNum = channelBuffers.size();
+
+    if (number > oldNum)
+    {
+        // add new channels
+        for (unsigned int i = 0; i < number - oldNum; i++)
+        {
+            channelBuffers.append(new FrameBuffer(_numOfSamples));
+            addChannelName(QString("Channel %1").arg(oldNum+i+1));
+        }
+    }
+    else if(number < oldNum)
+    {
+        // remove channels
+        for (unsigned int i = oldNum-1; i > number-1; i--)
+        {
+            delete channelBuffers.takeLast();
+            _channelNames.removeRow(i);
+        }
+    }
+
+    emit numOfChannelsChanged(number);
+}
+
+void ChannelManager::setNumOfSamples(unsigned number)
+{
+    _numOfSamples = number;
+
+    for (int ci = 0; ci < channelBuffers.size(); ci++)
+    {
+        channelBuffers[ci]->resize(_numOfSamples);
+    }
+
+    emit numOfSamplesChanged(number);
+}
+
+FrameBuffer* ChannelManager::channelBuffer(unsigned channel)
+{
+    return channelBuffers[channel];
+}
+
+QStringListModel* ChannelManager::channelNames()
+{
+    return &_channelNames;
+}
+
+QString ChannelManager::channelName(unsigned channel)
+{
+    return _channelNames.data(_channelNames.index(channel, 0), Qt::DisplayRole).toString();
+}
+
+void ChannelManager::setChannelName(unsigned channel, QString name)
+{
+    _channelNames.setData(_channelNames.index(channel, 0), QVariant(name), Qt::DisplayRole);
+}
+
+void ChannelManager::addChannelName(QString name)
+{
+    _channelNames.insertRow(_channelNames.rowCount());
+    setChannelName(_channelNames.rowCount()-1, name);
+}
+
+void ChannelManager::onChannelNameDataChange(const QModelIndex & topLeft,
+                                             const QModelIndex & bottomRight,
+                                             const QVector<int> & roles)
+{
+    Q_UNUSED(roles);
+    int start = topLeft.row();
+    int end = bottomRight.row();
+
+    // TODO: maybe check `roles` parameter, can't think of a reason for current use case
+    for (int i = start; i <= end; i++)
+    {
+        emit channelNameChanged(i, channelName(i));
+    }
+}
+
+void ChannelManager::addChannelData(unsigned channel, double* data, unsigned size)
+{
+    channelBuffer(channel)->addSamples(data, size);
+}