
<PAGE>
 
                                                                   EXHIBIT 10.24

[PC Connection, Inc. Letterhead]


          Via Airborne Express


          March 28, 1997


          John L. Bomba Jr.
          32 Aaron's Court
          Ridgefield, CT 06877

          Dear John,

          I take pleasure in extending to you this revised offer to join PC
          Connection, Inc. in the position of Vice President and Chief
          Information Officer, reporting to me. This letter supersedes my letter
          dated March 24, 1997. Your annual base salary will be $150,000.00
          payable twice monthly at a gross rate of $6,250.00. In addition, you
          will be eligible to earn a bonus of up to $50,000.00 annually, with a
          portion payable quarterly, based on mutually agreed upon goals and
          objectives.

          In anticipation of your contributions to the continued growth and
          success of the company and your senior managerial role, PC Connection
          intends to provide you with the option to purchase 20,000 shares of PC
          Connection stock. This grant will be subject to approval by our Board
          of Directors and will be issued under our standard employee stock
          option plan.

          We have made this offer with the understanding that you and your
          family will be relocating to New Hampshire as soon as possible. To
          assist you with your relocation to the area the company will reimburse
          you for direct relocation expenses incurred in a total amount not to
          exceed $65,000.00 ( net of taxes ) upon your presentation of receipts
          for such costs to the VP of Human Resources. Such expenses would
          include real estate commissions, traditional closing costs ( excluding
          pre-payments ), house hunting trips, moving of household goods and a
          temporary housing allowance of up to $3,000.00. In order to be
          eligible for such reimbursement, you will need to sign a relocation
          agreement which provides that you must repay such costs in the event
          that you voluntarily resign within twelve months of your initial
          employment date.

          You will also be eligible to participate in our group insurance
          programs which include medical, dental, life and disability income
          insurance and the company's 401K and profit sharing plans, all as
          described in the enclosed memorandum. To ensure insurance coverage
          during the thirty day waiting period, we urge you to extend any
          applicable benefit coverages with your current employer and PC
          Connection will reimburse you for the cost of such temporary coverage
          until you become eligible to participate in our company plans. You
          will receive three weeks of vacation annually, as well as any future
          benefits regularly and customarily available to company employees
          having comparable positions and seniority.

          In the event the company terminates your employment for any reason
          other than cause, or change of control, you shall receive nine months
          severance pay at the base salary level then applicable to you. In the
          event that there is a change in control of the corporation ( being
          defined as a change in the ownership of more than fifty percent of the
          shares then outstanding ) and your position is either eliminated, or
          you are not offered a comparable position with comparable
          responsibilities, compensation and benefits, you shall receive twelve
          months of severance pay at the base salary then applicable to you.
          Cause shall include, without limitation: failure to comply with rules,
          standards or procedures promulgated by the
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Mr. John Bomba
Page Two

          company; neglect or substandard performance of your assigned
          responsibilities; breach of the terms of the Covenant identified
          below; falsification of company records or documents; or any act of
          dishonesty or moral turpitude. A reorganization or modification of
          your duties shall not constitute termination.

          Please complete the enclosed Form I-9 and be prepared to provide the
          documentation outlined in the form. Federal law requires that each
          employee establish his or her identity and legal right to work in the
          United States. Additionally, as a condition of your employment, PC
          Connection requires that you agree to the terms of the enclosed
          Covenant Not To Compete and Disclose Confidential Information and
          -----------------------------------------------------------------
          Assignment of Rights document, which needs to be signed and returned
          -------------------- 
          with your offer letter. You will be considered and "employee-at-will"
          and nothing in this letter, or any other PC Connection document, is
          intended to create an employment contract, unless it explicitly states
          to the contrary. In addition, please note that all insurance plans and
          policies and company procedures are subject to change, without notice.

          We hope you will find this opportunity both attractive and exciting
          and we are confident that you will be a strong addition to our team.
          Our offer is valid until March 31, 1997, and assumes a start date no
          later than May 1, 1997, but preferably sooner. Please indicate your
          acceptance of this offer by signing the enclosed copy of this letter
          and returning it, along with the other signed documents mentioned
          above, in the envelope provided. I would appreciate if you would call
          me as soon as possible to confirm your actual starting date.

          John, we very much look forward to having you join PC Connection.



          Sincerely,

          /s/ WAYNE L. WILSON

          Wayne L. Wilson
          Senior Vice President and COO



          Offer Accepted:

          /s/ JOHN L. BOMBA, JR.                 4/10/97
          ------------------------------        ------------------   
          John L. Bomba, Jr.                    Date


          Enclosures
