Holding(s) in Company

--------------------------------------------------------------------------------
 TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES


+----------------------------------------------+-------------------------------+
|1. Identity of the issuer or the underlying   |                               |
|issuer                                        |              Computacenter Plc|
|of existing shares to which voting rights are |                               |
|attached: ii                                  |                               |
+----------------------------------------------+-------------------------------+
|2 Reason for the notification (please tick the appropriate box or boxes):     |
+-----------------------------------------------------------------+------------+
|An acquisition or disposal of voting rights                      |    YES     |
+-----------------------------------------------------------------+------------+
|An acquisition or disposal of qualifying financial instruments   |            |
|which may result in the acquisition of shares already issued to  |            |
|which voting rights are attached                                 |            |
+-----------------------------------------------------------------+------------+
|An acquisition or disposal of instruments with similar economic  |            |
|effect to qualifying financial instruments                       |            |
+-----------------------------------------------------------------+------------+
|An event changing the breakdown of voting rights                 |            |
+-----------------------------------------------------------------+------------+
|Other (please specify):                                          |            |
+--------------------------------------+--------------------------+------------+
|3. Full name of person(s) subject to  |                                       |
|the                                   |JPMorgan Asset Management Holdings Inc.|
|notification obligation: iii          |                                       |
+--------------------------------------+---------------------------------------+
|4. Full name of shareholder(s)        | JPMorgan Asset Management (UK) Limited|
|(if different from 3.):iv             |                                       |
+--------------------------------------+---------------------------------------+
|5. Date of the transaction and date on|                                       |
|which the threshold is crossed or     |                          03 March 2010|
|reached: v                            |                                       |
+--------------------------------------+---------------------------------------+
|6. Date on which issuer notified:     |                            21 May 2010|
+--------------------------------------+---------------------------------------+
|7. Threshold(s) that is/are crossed or|                           5% downwards|
|reached: vi, vii                      |                                       |
+--------------------------------------+---------------------------------------+

+------------------------------------------------------------------------------+
|8. Notified details:                                                          |
+------------------------------------------------------------------------------+
|A: Voting rights attached to shares viii, ix                                  |
+------------+---------------------+-------------------------------------------+
|Class/type  |Situation previous   |Resulting situation after the triggering   |
|of          |to the triggering    |transaction                                |
|shares      |transaction          |                                           |
|            +---------+-----------+----------+----------------+---------------+
|if possible |Number   |Number     |Number    |Number of voting|% of  voting   |
|using       |of       |of         |of shares |rights          |rights x       |
|the ISIN    |  ares   |Vo ing     +----------+------+---------+------+--------+
|CODE        |         |Rights     |Direct    |Direct|Indirect |Direct|Indirect|
|            |         |           |          |xi    |xii      |      |        |
+------------+---------+-----------+----------+------+---------+------+--------+
|GB00B1649052|7,375,382|4.82%      |          |      |7,645,209|      |4.99%   |
|            |         |           |          |      |         |      |        |
|            |         |           |          |      |         |      |        |
|            |         |           |          |      |         |      |        |
+------------+---------+-----------+----------+------+---------+------+--------+

+------------------------------------------------------------------------------+
|B: Qualifying Financial Instruments                                           |
+------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                          |
+--------------+----------+--------------------+-----------------+-------------+
|Type of       |Expiration|Exercise/           |Number of voting |% of voting  |
|financial     |date xiii |Conversion Period   |rights that may  |rights       |
|instrument    |          |xiv                 |be               |             |
|              |          |                    |acquired if the  |             |
|              |          |                    |instrument is    |             |
|              |          |                    |exercised/       |             |
|              |          |                    |converted.       |             |
+--------------+----------+--------------------+-----------------+-------------+
|              |          |                    |                 |             |
+--------------+----------+--------------------+-----------------+-------------+

+------------------------------------------------------------------------------+
|C: Financial Instruments with similar economic effect to Qualifying Financial |
|Instruments xv, xvi                                                           |
+------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                          |
+-------------+--------+----------+----------+------------------+--------------+
|Type of      |Exercise|Expiration|Exercise/ |Number of voting  |% of voting   |
|financial    |price   |date xvii |Conversion|rights instrument |rights xix, xx|
|instrument   |        |          |period    |refers to         |              |
|             |        |          |xviii     |                  |              |
+-------------+--------+----------+----------+------------------+-------+------+
|Contract For |        |          |          |                  |Nominal|Delta |
|Difference   |        |          |          |1,945             +-------+------+
|             |        |          |          |                  |       |0.00% |
+-------------+--------+----------+----------+------------------+-------+------+

+------------------------------------------------------------------------------+
|Total (A+B+C)                                                                 |
+-----------------------------------+------------------------------------------+
|Number of voting rights            |Percentage of voting rights               |
+-----------------------------------+------------------------------------------+
|7,647,154                          |4.99%                                     |
+-----------------------------------+------------------------------------------+

+--------------------------------------------------------------------------+
|9. Chain of controlled undertakings through which the voting rights and/or|
|the                                                                       |
|financial instruments are effectively held, if applicable: xxi            |
+--------------------------------------------------------------------------+
|Total disclosable holding for JPMorgan Asset Management Holdings Inc :    |
|JPMorgan Asset Management (UK) Limited: 7,647,154 (4.99%)                 |
|                                                                          |
+--------------------------------------------------------------------------+

+--------------------------------------------------------------------------+
|Proxy Voting:                                                             |
+-------------------------------------------------+------------------------+
|10. Name of the proxy holder:                    |                     N/A|
+-------------------------------------------------+------------------------+
|11. Number of voting rights proxy holder will    |                        |
|cease                                            |                     N/A|
|to hold:                                         |                        |
+-------------------------------------------------+------------------------+
|12. Date on which proxy holder will cease to hold|                     N/A|
|voting rights:                                   |                        |
+-------------------------------------------------+------------------------+

+-----------------------------+--------------------------------------------+
|                             |                                         N/A|
|13. Additional information:  |                                            |
+-----------------------------+--------------------------------------------+
|14. Contact name:            |                             Miss Jay Supaya|
+-----------------------------+--------------------------------------------+
|15. Contact telephone number:|                               020 7325 4513|
+-----------------------------+--------------------------------------------+



[HUG#1418232]